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CERTFR-2026-AVI-0496
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans le noyau Linux de Red Hat. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire, une élévation de privilèges et un déni de service à distance.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.6 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - AUS 8.6 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.0 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Power, little endian 8 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.2 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - AUS 8.4 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems 8 s390x | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.6 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.0 aarch64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 10.0 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 8 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - TUS 8.6 x86_64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for IBM z Systems 9 s390x | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 7 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.0 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.2 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 10 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.6 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - TUS 8.8 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Real Time 8 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.6 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.0 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.8 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.0 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.0 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.2 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 9 aarch64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 10.0 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - AUS 9.6 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.6 s390x | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for x86_64 10 x86_64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for Power, little endian 9 ppc64le | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for IBM z Systems 10 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.0 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - Extended Life Cycle Support 7 x86_64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for ARM 64 9 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.6 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 8.10 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.6 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.6 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.2 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.6 aarch64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 9.6 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.0 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 8.10 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.6 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 8 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 10 aarch64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for ARM 64 8 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.0 ppc64le | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 9.6 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Real Time for NFV 8 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.6 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.6 ppc64le | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for x86_64 8 x86_64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 10.0 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.6 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.2 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 8.10 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems 9 s390x | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.0 s390x | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - AUS 9.2 x86_64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for ARM 64 10 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - AUS 8.2 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian 7 ppc64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 10.0 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.6 x86_64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 9.6 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.4 x86_64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 9.6 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 8.10 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Power, little endian 9 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.8 x86_64 | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for Power, little endian 8 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.8 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.2 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.2 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for IBM z Systems 10 s390x | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for x86_64 9 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 9 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for Power, little endian 10 ppc64le | ||
| Red Hat | Red Hat CodeReady Linux Builder | Red Hat CodeReady Linux Builder for Power, little endian 10 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux Server | Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.2 ppc64le | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.6 x86_64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.0 aarch64 | ||
| Red Hat | Red Hat Enterprise Linux | Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.0 aarch64 |
References
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.6 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - AUS 8.6 x86_64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 10.0 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Power, little endian 8 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.2 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - AUS 8.4 x86_64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems 8 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.6 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.0 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 10.0 s390x",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 8 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - TUS 8.6 x86_64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for IBM z Systems 9 s390x",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 7 s390x",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.0 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.2 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 10 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 9.6 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - TUS 8.8 x86_64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Real Time 8 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.6 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - Extended Update Support 10.0 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.8 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.0 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - 4 years of updates 10.0 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.2 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 9 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 10.0 ppc64le",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - AUS 9.6 x86_64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 9.6 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for x86_64 10 x86_64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for Power, little endian 9 ppc64le",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for IBM z Systems 10 s390x",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Power, little endian - 4 years of support 10.0 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - Extended Life Cycle Support 7 x86_64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for ARM 64 9 aarch64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.6 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 8.10 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.6 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.6 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 9.2 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.6 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 9.6 ppc64le",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.0 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 8.10 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.6 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 8 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 10 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for ARM 64 8 aarch64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Power, little endian - Extended Update Support 10.0 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 9.6 s390x",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Real Time for NFV 8 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.6 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.6 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for x86_64 8 x86_64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 10.0 aarch64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.6 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.2 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 8.10 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems 9 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 10.0 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - AUS 9.2 x86_64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for ARM 64 10 aarch64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - AUS 8.2 x86_64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian 7 ppc64",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 10.0 x86_64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.6 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 9.6 aarch64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.4 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 9.6 x86_64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 8.10 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Power, little endian 9 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.8 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for Power, little endian 8 ppc64le",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.8 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 9.2 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.2 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for IBM z Systems 10 s390x",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for x86_64 9 x86_64",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 9 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for Power, little endian 10 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat CodeReady Linux Builder for Power, little endian 10 ppc64le",
"product": {
"name": "Red Hat CodeReady Linux Builder",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.2 ppc64le",
"product": {
"name": "Red Hat Enterprise Linux Server",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.6 x86_64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 - 4 years of updates 10.0 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
},
{
"description": "Red Hat Enterprise Linux for ARM 64 - Extended Update Support 10.0 aarch64",
"product": {
"name": "Red Hat Enterprise Linux",
"vendor": {
"name": "Red Hat",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2025-40064",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40064"
},
{
"name": "CVE-2025-68741",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68741"
},
{
"name": "CVE-2026-23066",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23066"
},
{
"name": "CVE-2026-23209",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23209"
},
{
"name": "CVE-2025-38024",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38024"
},
{
"name": "CVE-2026-23204",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23204"
},
{
"name": "CVE-2026-23191",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23191"
},
{
"name": "CVE-2025-39981",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39981"
},
{
"name": "CVE-2026-23216",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23216"
},
{
"name": "CVE-2023-53539",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-53539"
},
{
"name": "CVE-2026-23001",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23001"
},
{
"name": "CVE-2026-23193",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23193"
},
{
"name": "CVE-2025-40168",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-40168"
},
{
"name": "CVE-2026-23144",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23144"
},
{
"name": "CVE-2025-39766",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39766"
},
{
"name": "CVE-2022-50053",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-50053"
},
{
"name": "CVE-2026-23156",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23156"
},
{
"name": "CVE-2026-23171",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23171"
},
{
"name": "CVE-2025-38180",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38180"
},
{
"name": "CVE-2026-23111",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23111"
},
{
"name": "CVE-2026-23231",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23231"
},
{
"name": "CVE-2025-68800",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68800"
},
{
"name": "CVE-2025-71238",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71238"
},
{
"name": "CVE-2025-38248",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38248"
}
],
"initial_release_date": "2026-04-24T00:00:00",
"last_revision_date": "2026-04-24T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0496",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-04-24T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"description": "Ex\u00e9cution de code arbitraire"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le noyau Linux de Red Hat. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire, une \u00e9l\u00e9vation de privil\u00e8ges et un d\u00e9ni de service \u00e0 distance.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux de Red Hat",
"vendor_advisories": [
{
"published_at": "2026-04-22",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:9515",
"url": "https://access.redhat.com/errata/RHSA-2026:9515"
},
{
"published_at": "2026-04-20",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:9112",
"url": "https://access.redhat.com/errata/RHSA-2026:9112"
},
{
"published_at": "2026-04-22",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:9643",
"url": "https://access.redhat.com/errata/RHSA-2026:9643"
},
{
"published_at": "2026-04-22",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:9644",
"url": "https://access.redhat.com/errata/RHSA-2026:9644"
},
{
"published_at": "2026-04-22",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:9513",
"url": "https://access.redhat.com/errata/RHSA-2026:9513"
},
{
"published_at": "2026-04-21",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:9264",
"url": "https://access.redhat.com/errata/RHSA-2026:9264"
},
{
"published_at": "2026-04-22",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:9512",
"url": "https://access.redhat.com/errata/RHSA-2026:9512"
},
{
"published_at": "2026-04-20",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:9135",
"url": "https://access.redhat.com/errata/RHSA-2026:9135"
},
{
"published_at": "2026-04-20",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:9095",
"url": "https://access.redhat.com/errata/RHSA-2026:9095"
},
{
"published_at": "2026-04-22",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:9835",
"url": "https://access.redhat.com/errata/RHSA-2026:9835"
},
{
"published_at": "2026-04-20",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:9131",
"url": "https://access.redhat.com/errata/RHSA-2026:9131"
},
{
"published_at": "2026-04-20",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:8921",
"url": "https://access.redhat.com/errata/RHSA-2026:8921"
},
{
"published_at": "2026-04-22",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:9870",
"url": "https://access.redhat.com/errata/RHSA-2026:9870"
},
{
"published_at": "2026-04-22",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:9836",
"url": "https://access.redhat.com/errata/RHSA-2026:9836"
},
{
"published_at": "2026-04-22",
"title": "Bulletin de s\u00e9curit\u00e9 Red Hat RHSA-2026:9514",
"url": "https://access.redhat.com/errata/RHSA-2026:9514"
}
]
}
CVE-2025-39766 (GCVE-0-2025-39766)
Vulnerability from cvelistv5
Published
2025-09-11 16:56
Modified
2026-06-11 18:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/sched: Make cake_enqueue return NET_XMIT_CN when past buffer_limit
The following setup can trigger a WARNING in htb_activate due to
the condition: !cl->leaf.q->q.qlen
tc qdisc del dev lo root
tc qdisc add dev lo root handle 1: htb default 1
tc class add dev lo parent 1: classid 1:1 \
htb rate 64bit
tc qdisc add dev lo parent 1:1 handle f: \
cake memlimit 1b
ping -I lo -f -c1 -s64 -W0.001 127.0.0.1
This is because the low memlimit leads to a low buffer_limit, which
causes packet dropping. However, cake_enqueue still returns
NET_XMIT_SUCCESS, causing htb_enqueue to call htb_activate with an
empty child qdisc. We should return NET_XMIT_CN when packets are
dropped from the same tin and flow.
I do not believe return value of NET_XMIT_CN is necessary for packet
drops in the case of ack filtering, as that is meant to optimize
performance, not to signal congestion.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 046f6fd5daefac7f5abdafb436b30f63bc7c602b Version: 046f6fd5daefac7f5abdafb436b30f63bc7c602b Version: 046f6fd5daefac7f5abdafb436b30f63bc7c602b Version: 046f6fd5daefac7f5abdafb436b30f63bc7c602b Version: 046f6fd5daefac7f5abdafb436b30f63bc7c602b Version: 046f6fd5daefac7f5abdafb436b30f63bc7c602b Version: 046f6fd5daefac7f5abdafb436b30f63bc7c602b Version: 046f6fd5daefac7f5abdafb436b30f63bc7c602b |
||
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"metrics": [
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CVE-2026-23216 (GCVE-0-2026-23216)
Vulnerability from cvelistv5
Published
2026-02-18 14:21
Modified
2026-06-11 17:53
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: target: iscsi: Fix use-after-free in iscsit_dec_conn_usage_count()
In iscsit_dec_conn_usage_count(), the function calls complete() while
holding the conn->conn_usage_lock. As soon as complete() is invoked, the
waiter (such as iscsit_close_connection()) may wake up and proceed to free
the iscsit_conn structure.
If the waiter frees the memory before the current thread reaches
spin_unlock_bh(), it results in a KASAN slab-use-after-free as the function
attempts to release a lock within the already-freed connection structure.
Fix this by releasing the spinlock before calling complete().
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: e48354ce078c079996f89d715dfa44814b4eba01 Version: e48354ce078c079996f89d715dfa44814b4eba01 Version: e48354ce078c079996f89d715dfa44814b4eba01 Version: e48354ce078c079996f89d715dfa44814b4eba01 Version: e48354ce078c079996f89d715dfa44814b4eba01 Version: e48354ce078c079996f89d715dfa44814b4eba01 Version: e48354ce078c079996f89d715dfa44814b4eba01 |
||
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CVE-2025-38024 (GCVE-0-2025-38024)
Vulnerability from cvelistv5
Published
2025-06-18 09:28
Modified
2026-08-05 11:59
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
RDMA/rxe: Fix slab-use-after-free Read in rxe_queue_cleanup bug
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x7d/0xa0 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0xcf/0x610 mm/kasan/report.c:489
kasan_report+0xb5/0xe0 mm/kasan/report.c:602
rxe_queue_cleanup+0xd0/0xe0 drivers/infiniband/sw/rxe/rxe_queue.c:195
rxe_cq_cleanup+0x3f/0x50 drivers/infiniband/sw/rxe/rxe_cq.c:132
__rxe_cleanup+0x168/0x300 drivers/infiniband/sw/rxe/rxe_pool.c:232
rxe_create_cq+0x22e/0x3a0 drivers/infiniband/sw/rxe/rxe_verbs.c:1109
create_cq+0x658/0xb90 drivers/infiniband/core/uverbs_cmd.c:1052
ib_uverbs_create_cq+0xc7/0x120 drivers/infiniband/core/uverbs_cmd.c:1095
ib_uverbs_write+0x969/0xc90 drivers/infiniband/core/uverbs_main.c:679
vfs_write fs/read_write.c:677 [inline]
vfs_write+0x26a/0xcc0 fs/read_write.c:659
ksys_write+0x1b8/0x200 fs/read_write.c:731
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xaa/0x1b0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
In the function rxe_create_cq, when rxe_cq_from_init fails, the function
rxe_cleanup will be called to handle the allocated resources. In fact,
some memory resources have already been freed in the function
rxe_cq_from_init. Thus, this problem will occur.
The solution is to let rxe_cleanup do all the work.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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CVE-2026-23209 (GCVE-0-2026-23209)
Vulnerability from cvelistv5
Published
2026-02-14 16:27
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
macvlan: fix error recovery in macvlan_common_newlink()
valis provided a nice repro to crash the kernel:
ip link add p1 type veth peer p2
ip link set address 00:00:00:00:00:20 dev p1
ip link set up dev p1
ip link set up dev p2
ip link add mv0 link p2 type macvlan mode source
ip link add invalid% link p2 type macvlan mode source macaddr add 00:00:00:00:00:20
ping -c1 -I p1 1.2.3.4
He also gave a very detailed analysis:
<quote valis>
The issue is triggered when a new macvlan link is created with
MACVLAN_MODE_SOURCE mode and MACVLAN_MACADDR_ADD (or
MACVLAN_MACADDR_SET) parameter, lower device already has a macvlan
port and register_netdevice() called from macvlan_common_newlink()
fails (e.g. because of the invalid link name).
In this case macvlan_hash_add_source is called from
macvlan_change_sources() / macvlan_common_newlink():
This adds a reference to vlan to the port's vlan_source_hash using
macvlan_source_entry.
vlan is a pointer to the priv data of the link that is being created.
When register_netdevice() fails, the error is returned from
macvlan_newlink() to rtnl_newlink_create():
if (ops->newlink)
err = ops->newlink(dev, ¶ms, extack);
else
err = register_netdevice(dev);
if (err < 0) {
free_netdev(dev);
goto out;
}
and free_netdev() is called, causing a kvfree() on the struct
net_device that is still referenced in the source entry attached to
the lower device's macvlan port.
Now all packets sent on the macvlan port with a matching source mac
address will trigger a use-after-free in macvlan_forward_source().
</quote valis>
With all that, my fix is to make sure we call macvlan_flush_sources()
regardless of @create value whenever "goto destroy_macvlan_port;"
path is taken.
Many thanks to valis for following up on this issue.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: aa5fd0fb77486b8a6764ead8627baa14790e4280 Version: aa5fd0fb77486b8a6764ead8627baa14790e4280 Version: aa5fd0fb77486b8a6764ead8627baa14790e4280 Version: aa5fd0fb77486b8a6764ead8627baa14790e4280 Version: aa5fd0fb77486b8a6764ead8627baa14790e4280 Version: aa5fd0fb77486b8a6764ead8627baa14790e4280 Version: aa5fd0fb77486b8a6764ead8627baa14790e4280 |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmacvlan: fix error recovery in macvlan_common_newlink()\n\nvalis provided a nice repro to crash the kernel:\n\nip link add p1 type veth peer p2\nip link set address 00:00:00:00:00:20 dev p1\nip link set up dev p1\nip link set up dev p2\n\nip link add mv0 link p2 type macvlan mode source\nip link add invalid% link p2 type macvlan mode source macaddr add 00:00:00:00:00:20\n\nping -c1 -I p1 1.2.3.4\n\nHe also gave a very detailed analysis:\n\n\u003cquote valis\u003e\n\nThe issue is triggered when a new macvlan link is created with\nMACVLAN_MODE_SOURCE mode and MACVLAN_MACADDR_ADD (or\nMACVLAN_MACADDR_SET) parameter, lower device already has a macvlan\nport and register_netdevice() called from macvlan_common_newlink()\nfails (e.g. because of the invalid link name).\n\nIn this case macvlan_hash_add_source is called from\nmacvlan_change_sources() / macvlan_common_newlink():\n\nThis adds a reference to vlan to the port\u0027s vlan_source_hash using\nmacvlan_source_entry.\n\nvlan is a pointer to the priv data of the link that is being created.\n\nWhen register_netdevice() fails, the error is returned from\nmacvlan_newlink() to rtnl_newlink_create():\n\n if (ops-\u003enewlink)\n err = ops-\u003enewlink(dev, \u0026params, extack);\n else\n err = register_netdevice(dev);\n if (err \u003c 0) {\n free_netdev(dev);\n goto out;\n }\n\nand free_netdev() is called, causing a kvfree() on the struct\nnet_device that is still referenced in the source entry attached to\nthe lower device\u0027s macvlan port.\n\nNow all packets sent on the macvlan port with a matching source mac\naddress will trigger a use-after-free in macvlan_forward_source().\n\n\u003c/quote valis\u003e\n\nWith all that, my fix is to make sure we call macvlan_flush_sources()\nregardless of @create value whenever \"goto destroy_macvlan_port;\"\npath is taken.\n\nMany thanks to valis for following up on this issue."
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CVE-2026-23204 (GCVE-0-2026-23204)
Vulnerability from cvelistv5
Published
2026-02-14 16:27
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/sched: cls_u32: use skb_header_pointer_careful()
skb_header_pointer() does not fully validate negative @offset values.
Use skb_header_pointer_careful() instead.
GangMin Kim provided a report and a repro fooling u32_classify():
BUG: KASAN: slab-out-of-bounds in u32_classify+0x1180/0x11b0
net/sched/cls_u32.c:221
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: fbc2e7d9cf49e0bf89b9e91fd60a06851a855c5d Version: fbc2e7d9cf49e0bf89b9e91fd60a06851a855c5d Version: fbc2e7d9cf49e0bf89b9e91fd60a06851a855c5d Version: fbc2e7d9cf49e0bf89b9e91fd60a06851a855c5d Version: fbc2e7d9cf49e0bf89b9e91fd60a06851a855c5d Version: fbc2e7d9cf49e0bf89b9e91fd60a06851a855c5d Version: fbc2e7d9cf49e0bf89b9e91fd60a06851a855c5d |
||
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CVE-2026-23156 (GCVE-0-2026-23156)
Vulnerability from cvelistv5
Published
2026-02-14 16:01
Modified
2026-05-11 22:01
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
efivarfs: fix error propagation in efivar_entry_get()
efivar_entry_get() always returns success even if the underlying
__efivar_entry_get() fails, masking errors.
This may result in uninitialized heap memory being copied to userspace
in the efivarfs_file_read() path.
Fix it by returning the error from __efivar_entry_get().
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2025-40168 (GCVE-0-2025-40168)
Vulnerability from cvelistv5
Published
2025-11-12 10:46
Modified
2026-08-05 12:08
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match().
smc_clc_prfx_match() is called from smc_listen_work() and
not under RCU nor RTNL.
Using sk_dst_get(sk)->dev could trigger UAF.
Let's use __sk_dst_get() and dst_dev_rcu().
Note that the returned value of smc_clc_prfx_match() is not
used in the caller.
References
Impacted products
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"value": "AV:N - The vulnerable read is performed by the SMC listen worker while parsing a CLC Proposal message received over TCP from a remote peer (smc_listen_work \u2192 smc_listen_find_device \u2192 smc_listen_prfx_check \u2192 smc_clc_prfx_match), and the peer controls the fields that select and drive the code path. Any host running an AF_SMC listener is exposed to unauthenticated remote connections.\nAC:H - The attacker fully controls one side of the race (when the CLC Proposal arrives and thus when the stale dst-\u003edev is dereferenced), but the other side requires the route\u0027s net_device to be concurrently torn down via dst_dev_put()/free_netdev(), which a remote attacker cannot induce or time.\nPR:N - The CLC handshake is the first exchange on the connection and SMC performs no authentication before smc_clc_prfx_match() runs, so an unauthenticated remote attacker reaches the bug with no credentials of any kind.\nUI:N - Triggering requires only that the attacker complete a TCP handshake with the SMC option and send a CLC Proposal; no action by any local user or administrator is needed.\nS:U - The use-after-free is confined to kernel memory (the net_device slab and the in_dev/inet6_dev structures it points at) within the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The freed net_device is dereferenced and its ifa_list/addr_list walked, and since a reclaimed slab can be groomed with attacker-controlled data this yields an arbitrary kernel-memory read primitive; the match/no-match outcome is additionally returned to the peer as SMC_CLC_DECL_DIFFPREFIX, forming a remotely observable oracle on freed memory contents.\nI:H - A use-after-free of a net_device is a heap-corruption primitive: the reclaimed object\u0027s contents are attacker-influencable via heap spraying and the code follows pointers out of it, which can be groomed into an arbitrary write and control-flow hijack.\nA:H - Dereferencing the freed net_device and walking a bogus in_dev/inet6_dev address list reliably produces a kernel oops, panic, or an unbounded list walk, crashing the system."
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CVE-2025-68741 (GCVE-0-2025-68741)
Vulnerability from cvelistv5
Published
2025-12-24 12:09
Modified
2026-08-05 12:11
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: qla2xxx: Fix improper freeing of purex item
In qla2xxx_process_purls_iocb(), an item is allocated via
qla27xx_copy_multiple_pkt(), which internally calls
qla24xx_alloc_purex_item().
The qla24xx_alloc_purex_item() function may return a pre-allocated item
from a per-adapter pool for small allocations, instead of dynamically
allocating memory with kzalloc().
An error handling path in qla2xxx_process_purls_iocb() incorrectly uses
kfree() to release the item. If the item was from the pre-allocated
pool, calling kfree() on it is a bug that can lead to memory corruption.
Fix this by using the correct deallocation function,
qla24xx_free_purex_item(), which properly handles both dynamically
allocated and pre-allocated items.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2026-23193 (GCVE-0-2026-23193)
Vulnerability from cvelistv5
Published
2026-02-14 16:27
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count()
In iscsit_dec_session_usage_count(), the function calls complete() while
holding the sess->session_usage_lock. Similar to the connection usage count
logic, the waiter signaled by complete() (e.g., in the session release
path) may wake up and free the iscsit_session structure immediately.
This creates a race condition where the current thread may attempt to
execute spin_unlock_bh() on a session structure that has already been
deallocated, resulting in a KASAN slab-use-after-free.
To resolve this, release the session_usage_lock before calling complete()
to ensure all dereferences of the sess pointer are finished before the
waiter is allowed to proceed with deallocation.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: e48354ce078c079996f89d715dfa44814b4eba01 Version: e48354ce078c079996f89d715dfa44814b4eba01 Version: e48354ce078c079996f89d715dfa44814b4eba01 Version: e48354ce078c079996f89d715dfa44814b4eba01 Version: e48354ce078c079996f89d715dfa44814b4eba01 Version: e48354ce078c079996f89d715dfa44814b4eba01 Version: e48354ce078c079996f89d715dfa44814b4eba01 |
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"datePublished": "2026-02-14T16:27:20.251Z",
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CVE-2026-23171 (GCVE-0-2026-23171)
Vulnerability from cvelistv5
Published
2026-02-14 16:01
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bonding: fix use-after-free due to enslave fail after slave array update
Fix a use-after-free which happens due to enslave failure after the new
slave has been added to the array. Since the new slave can be used for Tx
immediately, we can use it after it has been freed by the enslave error
cleanup path which frees the allocated slave memory. Slave update array is
supposed to be called last when further enslave failures are not expected.
Move it after xdp setup to avoid any problems.
It is very easy to reproduce the problem with a simple xdp_pass prog:
ip l add bond1 type bond mode balance-xor
ip l set bond1 up
ip l set dev bond1 xdp object xdp_pass.o sec xdp_pass
ip l add dumdum type dummy
Then run in parallel:
while :; do ip l set dumdum master bond1 1>/dev/null 2>&1; done;
mausezahn bond1 -a own -b rand -A rand -B 1.1.1.1 -c 0 -t tcp "dp=1-1023, flags=syn"
The crash happens almost immediately:
[ 605.602850] Oops: general protection fault, probably for non-canonical address 0xe0e6fc2460000137: 0000 [#1] SMP KASAN NOPTI
[ 605.602916] KASAN: maybe wild-memory-access in range [0x07380123000009b8-0x07380123000009bf]
[ 605.602946] CPU: 0 UID: 0 PID: 2445 Comm: mausezahn Kdump: loaded Tainted: G B 6.19.0-rc6+ #21 PREEMPT(voluntary)
[ 605.602979] Tainted: [B]=BAD_PAGE
[ 605.602998] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 605.603032] RIP: 0010:netdev_core_pick_tx+0xcd/0x210
[ 605.603063] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 3e 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 6b 08 49 8d 7d 30 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 25 01 00 00 49 8b 45 30 4c 89 e2 48 89 ee 48 89
[ 605.603111] RSP: 0018:ffff88817b9af348 EFLAGS: 00010213
[ 605.603145] RAX: dffffc0000000000 RBX: ffff88817d28b420 RCX: 0000000000000000
[ 605.603172] RDX: 00e7002460000137 RSI: 0000000000000008 RDI: 07380123000009be
[ 605.603199] RBP: ffff88817b541a00 R08: 0000000000000001 R09: fffffbfff3ed8c0c
[ 605.603226] R10: ffffffff9f6c6067 R11: 0000000000000001 R12: 0000000000000000
[ 605.603253] R13: 073801230000098e R14: ffff88817d28b448 R15: ffff88817b541a84
[ 605.603286] FS: 00007f6570ef67c0(0000) GS:ffff888221dfa000(0000) knlGS:0000000000000000
[ 605.603319] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 605.603343] CR2: 00007f65712fae40 CR3: 000000011371b000 CR4: 0000000000350ef0
[ 605.603373] Call Trace:
[ 605.603392] <TASK>
[ 605.603410] __dev_queue_xmit+0x448/0x32a0
[ 605.603434] ? __pfx_vprintk_emit+0x10/0x10
[ 605.603461] ? __pfx_vprintk_emit+0x10/0x10
[ 605.603484] ? __pfx___dev_queue_xmit+0x10/0x10
[ 605.603507] ? bond_start_xmit+0xbfb/0xc20 [bonding]
[ 605.603546] ? _printk+0xcb/0x100
[ 605.603566] ? __pfx__printk+0x10/0x10
[ 605.603589] ? bond_start_xmit+0xbfb/0xc20 [bonding]
[ 605.603627] ? add_taint+0x5e/0x70
[ 605.603648] ? add_taint+0x2a/0x70
[ 605.603670] ? end_report.cold+0x51/0x75
[ 605.603693] ? bond_start_xmit+0xbfb/0xc20 [bonding]
[ 605.603731] bond_start_xmit+0x623/0xc20 [bonding]
References
| URL | Tags | |
|---|---|---|
Impacted products
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: fix use-after-free due to enslave fail after slave array update\n\nFix a use-after-free which happens due to enslave failure after the new\nslave has been added to the array. Since the new slave can be used for Tx\nimmediately, we can use it after it has been freed by the enslave error\ncleanup path which frees the allocated slave memory. Slave update array is\nsupposed to be called last when further enslave failures are not expected.\nMove it after xdp setup to avoid any problems.\n\nIt is very easy to reproduce the problem with a simple xdp_pass prog:\n ip l add bond1 type bond mode balance-xor\n ip l set bond1 up\n ip l set dev bond1 xdp object xdp_pass.o sec xdp_pass\n ip l add dumdum type dummy\n\nThen run in parallel:\n while :; do ip l set dumdum master bond1 1\u003e/dev/null 2\u003e\u00261; done;\n mausezahn bond1 -a own -b rand -A rand -B 1.1.1.1 -c 0 -t tcp \"dp=1-1023, flags=syn\"\n\nThe crash happens almost immediately:\n [ 605.602850] Oops: general protection fault, probably for non-canonical address 0xe0e6fc2460000137: 0000 [#1] SMP KASAN NOPTI\n [ 605.602916] KASAN: maybe wild-memory-access in range [0x07380123000009b8-0x07380123000009bf]\n [ 605.602946] CPU: 0 UID: 0 PID: 2445 Comm: mausezahn Kdump: loaded Tainted: G B 6.19.0-rc6+ #21 PREEMPT(voluntary)\n [ 605.602979] Tainted: [B]=BAD_PAGE\n [ 605.602998] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n [ 605.603032] RIP: 0010:netdev_core_pick_tx+0xcd/0x210\n [ 605.603063] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 3e 01 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 6b 08 49 8d 7d 30 48 89 fa 48 c1 ea 03 \u003c80\u003e 3c 02 00 0f 85 25 01 00 00 49 8b 45 30 4c 89 e2 48 89 ee 48 89\n [ 605.603111] RSP: 0018:ffff88817b9af348 EFLAGS: 00010213\n [ 605.603145] RAX: dffffc0000000000 RBX: ffff88817d28b420 RCX: 0000000000000000\n [ 605.603172] RDX: 00e7002460000137 RSI: 0000000000000008 RDI: 07380123000009be\n [ 605.603199] RBP: ffff88817b541a00 R08: 0000000000000001 R09: fffffbfff3ed8c0c\n [ 605.603226] R10: ffffffff9f6c6067 R11: 0000000000000001 R12: 0000000000000000\n [ 605.603253] R13: 073801230000098e R14: ffff88817d28b448 R15: ffff88817b541a84\n [ 605.603286] FS: 00007f6570ef67c0(0000) GS:ffff888221dfa000(0000) knlGS:0000000000000000\n [ 605.603319] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n [ 605.603343] CR2: 00007f65712fae40 CR3: 000000011371b000 CR4: 0000000000350ef0\n [ 605.603373] Call Trace:\n [ 605.603392] \u003cTASK\u003e\n [ 605.603410] __dev_queue_xmit+0x448/0x32a0\n [ 605.603434] ? __pfx_vprintk_emit+0x10/0x10\n [ 605.603461] ? __pfx_vprintk_emit+0x10/0x10\n [ 605.603484] ? __pfx___dev_queue_xmit+0x10/0x10\n [ 605.603507] ? bond_start_xmit+0xbfb/0xc20 [bonding]\n [ 605.603546] ? _printk+0xcb/0x100\n [ 605.603566] ? __pfx__printk+0x10/0x10\n [ 605.603589] ? bond_start_xmit+0xbfb/0xc20 [bonding]\n [ 605.603627] ? add_taint+0x5e/0x70\n [ 605.603648] ? add_taint+0x2a/0x70\n [ 605.603670] ? end_report.cold+0x51/0x75\n [ 605.603693] ? bond_start_xmit+0xbfb/0xc20 [bonding]\n [ 605.603731] bond_start_xmit+0x623/0xc20 [bonding]"
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"value": "AV:L - The vulnerability is triggered via local netlink operations (ip link set ... master) which requires CAP_NET_ADMIN. This is a local attack vector through syscalls/ioctls, not remotely reachable via network packets.\nAC:L - The attacker controls both sides of the race \u2014 they trigger the enslave operation and the packet transmit concurrently. The commit confirms it is \"very easy to reproduce\" and crashes \"almost immediately.\" The attacker creates and controls the race conditions.\nPR:L - Requires CAP_NET_ADMIN, but this capability is obtainable by an unprivileged local user through user namespaces (unshare -Urn). Bond interfaces, dummy devices, and XDP programs can all be created within a user/network namespace.\nUI:N - No user interaction is required. The attacker can set up the bond device, XDP program, dummy slave, and trigger the race entirely on their own.\nS:U - The vulnerability affects the kernel within its own security scope. There is no crossing of security boundaries such as VM escape or IOMMU bypass.\nC:H - This is a use-after-free where the freed slave struct is accessed through the transmit array. An attacker can reallocate the freed memory with controlled content via heap spray, potentially reading arbitrary kernel memory through the slave struct\u0027s pointer fields.\nI:H - The use-after-free gives the attacker control over the freed slave object\u0027s contents through heap spraying. The Tx path dereferences pointers from the slave struct (e.g., slave-\u003edev), enabling arbitrary write primitives and potential code execution.\nA:H - The vulnerability causes an immediate kernel oops/crash as demonstrated in the commit message, with access to wild memory addresses. This is trivially reproducible for a denial of service."
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CVE-2025-38180 (GCVE-0-2025-38180)
Vulnerability from cvelistv5
Published
2025-07-04 13:37
Modified
2026-08-05 12:00
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: atm: fix /proc/net/atm/lec handling
/proc/net/atm/lec must ensure safety against dev_lec[] changes.
It appears it had dev_put() calls without prior dev_hold(),
leading to imbalance and UAF.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
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CVE-2026-23001 (GCVE-0-2026-23001)
Vulnerability from cvelistv5
Published
2026-01-25 14:36
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
macvlan: fix possible UAF in macvlan_forward_source()
Add RCU protection on (struct macvlan_source_entry)->vlan.
Whenever macvlan_hash_del_source() is called, we must clear
entry->vlan pointer before RCU grace period starts.
This allows macvlan_forward_source() to skip over
entries queued for freeing.
Note that macvlan_dev are already RCU protected, as they
are embedded in a standard netdev (netdev_priv(ndev)).
https: //lore.kernel.org/netdev/695fb1e8.050a0220.1c677c.039f.GAE@google.com/T/#u
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 79cf79abce71eb7dbc40e2f3121048ca5405cb47 Version: 79cf79abce71eb7dbc40e2f3121048ca5405cb47 Version: 79cf79abce71eb7dbc40e2f3121048ca5405cb47 Version: 79cf79abce71eb7dbc40e2f3121048ca5405cb47 Version: 79cf79abce71eb7dbc40e2f3121048ca5405cb47 Version: 79cf79abce71eb7dbc40e2f3121048ca5405cb47 Version: 79cf79abce71eb7dbc40e2f3121048ca5405cb47 |
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CVE-2026-23231 (GCVE-0-2026-23231)
Vulnerability from cvelistv5
Published
2026-03-04 12:58
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: fix use-after-free in nf_tables_addchain()
nf_tables_addchain() publishes the chain to table->chains via
list_add_tail_rcu() (in nft_chain_add()) before registering hooks.
If nf_tables_register_hook() then fails, the error path calls
nft_chain_del() (list_del_rcu()) followed by nf_tables_chain_destroy()
with no RCU grace period in between.
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1) Control-plane: nf_tables_dump_chains() traverses table->chains
under rcu_read_lock(). A concurrent dump can still be walking
the chain when the error path frees it.
2) Packet path: for NFPROTO_INET, nf_register_net_hook() briefly
installs the IPv4 hook before IPv6 registration fails. Packets
entering nft_do_chain() via the transient IPv4 hook can still be
dereferencing chain->blob_gen_X when the error path frees the
chain.
Add synchronize_rcu() between nft_chain_del() and the chain destroy
so that all RCU readers -- both dump threads and in-flight packet
evaluation -- have finished before the chain is freed.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
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{
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"cveId": "CVE-2026-23231",
"datePublished": "2026-03-04T12:58:42.029Z",
"dateReserved": "2026-01-13T15:37:45.988Z",
"dateUpdated": "2026-08-05T12:20:47.711Z",
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CVE-2025-39981 (GCVE-0-2025-39981)
Vulnerability from cvelistv5
Published
2025-10-15 07:56
Modified
2026-08-05 12:06
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: MGMT: Fix possible UAFs
This attemps to fix possible UAFs caused by struct mgmt_pending being
freed while still being processed like in the following trace, in order
to fix mgmt_pending_valid is introduce and use to check if the
mgmt_pending hasn't been removed from the pending list, on the complete
callbacks it is used to check and in addtion remove the cmd from the list
while holding mgmt_pending_lock to avoid TOCTOU problems since if the cmd
is left on the list it can still be accessed and freed.
BUG: KASAN: slab-use-after-free in mgmt_add_adv_patterns_monitor_sync+0x35/0x50 net/bluetooth/mgmt.c:5223
Read of size 8 at addr ffff8880709d4dc0 by task kworker/u11:0/55
CPU: 0 UID: 0 PID: 55 Comm: kworker/u11:0 Not tainted 6.16.4 #2 PREEMPT(full)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014
Workqueue: hci0 hci_cmd_sync_work
Call Trace:
<TASK>
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0xca/0x240 mm/kasan/report.c:482
kasan_report+0x118/0x150 mm/kasan/report.c:595
mgmt_add_adv_patterns_monitor_sync+0x35/0x50 net/bluetooth/mgmt.c:5223
hci_cmd_sync_work+0x210/0x3a0 net/bluetooth/hci_sync.c:332
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3321
worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
kthread+0x711/0x8a0 kernel/kthread.c:464
ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 home/kwqcheii/source/fuzzing/kernel/kasan/linux-6.16.4/arch/x86/entry/entry_64.S:245
</TASK>
Allocated by task 12210:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__kmalloc_cache_noprof+0x230/0x3d0 mm/slub.c:4364
kmalloc_noprof include/linux/slab.h:905 [inline]
kzalloc_noprof include/linux/slab.h:1039 [inline]
mgmt_pending_new+0x65/0x1e0 net/bluetooth/mgmt_util.c:269
mgmt_pending_add+0x35/0x140 net/bluetooth/mgmt_util.c:296
__add_adv_patterns_monitor+0x130/0x200 net/bluetooth/mgmt.c:5247
add_adv_patterns_monitor+0x214/0x360 net/bluetooth/mgmt.c:5364
hci_mgmt_cmd+0x9c9/0xef0 net/bluetooth/hci_sock.c:1719
hci_sock_sendmsg+0x6ca/0xef0 net/bluetooth/hci_sock.c:1839
sock_sendmsg_nosec net/socket.c:714 [inline]
__sock_sendmsg+0x219/0x270 net/socket.c:729
sock_write_iter+0x258/0x330 net/socket.c:1133
new_sync_write fs/read_write.c:593 [inline]
vfs_write+0x5c9/0xb30 fs/read_write.c:686
ksys_write+0x145/0x250 fs/read_write.c:738
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 12221:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x62/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2381 [inline]
slab_free mm/slub.c:4648 [inline]
kfree+0x18e/0x440 mm/slub.c:4847
mgmt_pending_free net/bluetooth/mgmt_util.c:311 [inline]
mgmt_pending_foreach+0x30d/0x380 net/bluetooth/mgmt_util.c:257
__mgmt_power_off+0x169/0x350 net/bluetooth/mgmt.c:9444
hci_dev_close_sync+0x754/0x1330 net/bluetooth/hci_sync.c:5290
hci_dev_do_close net/bluetooth/hci_core.c:501 [inline]
hci_dev_close+0x108/0x200 net/bluetooth/hci_core.c:526
sock_do_ioctl+0xd9/0x300 net/socket.c:1192
sock_ioctl+0x576/0x790 net/socket.c:1313
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf
---truncated---
References
| URL | Tags | |
|---|---|---|
Impacted products
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: MGMT: Fix possible UAFs\n\nThis attemps to fix possible UAFs caused by struct mgmt_pending being\nfreed while still being processed like in the following trace, in order\nto fix mgmt_pending_valid is introduce and use to check if the\nmgmt_pending hasn\u0027t been removed from the pending list, on the complete\ncallbacks it is used to check and in addtion remove the cmd from the list\nwhile holding mgmt_pending_lock to avoid TOCTOU problems since if the cmd\nis left on the list it can still be accessed and freed.\n\nBUG: KASAN: slab-use-after-free in mgmt_add_adv_patterns_monitor_sync+0x35/0x50 net/bluetooth/mgmt.c:5223\nRead of size 8 at addr ffff8880709d4dc0 by task kworker/u11:0/55\n\nCPU: 0 UID: 0 PID: 55 Comm: kworker/u11:0 Not tainted 6.16.4 #2 PREEMPT(full)\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1ubuntu1 04/01/2014\nWorkqueue: hci0 hci_cmd_sync_work\nCall Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120\n print_address_description mm/kasan/report.c:378 [inline]\n print_report+0xca/0x240 mm/kasan/report.c:482\n kasan_report+0x118/0x150 mm/kasan/report.c:595\n mgmt_add_adv_patterns_monitor_sync+0x35/0x50 net/bluetooth/mgmt.c:5223\n hci_cmd_sync_work+0x210/0x3a0 net/bluetooth/hci_sync.c:332\n process_one_work kernel/workqueue.c:3238 [inline]\n process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3321\n worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402\n kthread+0x711/0x8a0 kernel/kthread.c:464\n ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148\n ret_from_fork_asm+0x1a/0x30 home/kwqcheii/source/fuzzing/kernel/kasan/linux-6.16.4/arch/x86/entry/entry_64.S:245\n \u003c/TASK\u003e\n\nAllocated by task 12210:\n kasan_save_stack mm/kasan/common.c:47 [inline]\n kasan_save_track+0x3e/0x80 mm/kasan/common.c:68\n poison_kmalloc_redzone mm/kasan/common.c:377 [inline]\n __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:394\n kasan_kmalloc include/linux/kasan.h:260 [inline]\n __kmalloc_cache_noprof+0x230/0x3d0 mm/slub.c:4364\n kmalloc_noprof include/linux/slab.h:905 [inline]\n kzalloc_noprof include/linux/slab.h:1039 [inline]\n mgmt_pending_new+0x65/0x1e0 net/bluetooth/mgmt_util.c:269\n mgmt_pending_add+0x35/0x140 net/bluetooth/mgmt_util.c:296\n __add_adv_patterns_monitor+0x130/0x200 net/bluetooth/mgmt.c:5247\n add_adv_patterns_monitor+0x214/0x360 net/bluetooth/mgmt.c:5364\n hci_mgmt_cmd+0x9c9/0xef0 net/bluetooth/hci_sock.c:1719\n hci_sock_sendmsg+0x6ca/0xef0 net/bluetooth/hci_sock.c:1839\n sock_sendmsg_nosec net/socket.c:714 [inline]\n __sock_sendmsg+0x219/0x270 net/socket.c:729\n sock_write_iter+0x258/0x330 net/socket.c:1133\n new_sync_write fs/read_write.c:593 [inline]\n vfs_write+0x5c9/0xb30 fs/read_write.c:686\n ksys_write+0x145/0x250 fs/read_write.c:738\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nFreed by task 12221:\n kasan_save_stack mm/kasan/common.c:47 [inline]\n kasan_save_track+0x3e/0x80 mm/kasan/common.c:68\n kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:576\n poison_slab_object mm/kasan/common.c:247 [inline]\n __kasan_slab_free+0x62/0x70 mm/kasan/common.c:264\n kasan_slab_free include/linux/kasan.h:233 [inline]\n slab_free_hook mm/slub.c:2381 [inline]\n slab_free mm/slub.c:4648 [inline]\n kfree+0x18e/0x440 mm/slub.c:4847\n mgmt_pending_free net/bluetooth/mgmt_util.c:311 [inline]\n mgmt_pending_foreach+0x30d/0x380 net/bluetooth/mgmt_util.c:257\n __mgmt_power_off+0x169/0x350 net/bluetooth/mgmt.c:9444\n hci_dev_close_sync+0x754/0x1330 net/bluetooth/hci_sync.c:5290\n hci_dev_do_close net/bluetooth/hci_core.c:501 [inline]\n hci_dev_close+0x108/0x200 net/bluetooth/hci_core.c:526\n sock_do_ioctl+0xd9/0x300 net/socket.c:1192\n sock_ioctl+0x576/0x790 net/socket.c:1313\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:907 [inline]\n __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xf\n---truncated---"
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"value": "AV:L - Both sides of the race are local syscalls \u2014 `write()` of an MGMT command on an AF_BLUETOOTH/BTPROTO_HCI socket bound to HCI_CHANNEL_CONTROL, and `ioctl(HCIDEVDOWN)` \u2014 with no over-the-air component; a remote or adjacent Bluetooth peer cannot inject MGMT commands.\nAC:L - The attacker owns both sides of the race, spawning one thread that queues mgmt commands (widening the window via the hci_cmd_sync workqueue dispatch latency) and another that closes the device, and can retry in a tight loop until the free lands inside the worker\u0027s dereference.\nPR:L - Reaching the affected opcodes requires HCI_SOCK_TRUSTED, granted by CAP_NET_ADMIN, which is a delegable capability commonly held by non-root service accounts (bluetoothd, Android\u0027s Bluetooth process) rather than full init-namespace root \u2014 so compromising that already-network-exposed daemon yields this primitive.\nUI:N - The attacker performs every step itself \u2014 queueing the mgmt command and tearing the HCI device down \u2014 with no victim action required.\nS:U - The corruption stays within the kernel\u0027s own security authority; there is no VM, IOMMU, or sandbox boundary crossed.\nC:H - The freed cmd\u0027s `user_data` is dereferenced as an `adv_monitor`, so a heap-sprayed replacement lets msft_add_monitor_pattern() walk an attacker-supplied pattern list and read arbitrary kernel memory back through the mgmt event socket, and `cmd-\u003esk`/`cmd-\u003eparam` reads leak further kernel data.\nI:H - `monitor-\u003ehandle = handle` after `idr_alloc()` writes a controlled value at an attacker-chosen address, and the stale `list_del` in mgmt_pending_remove(), dangling `kfree_skb(cmd-\u003eskb)`, and spurious `sock_put(cmd-\u003esk)` add double-free and refcount-underflow primitives sufficient for control-flow hijack.\nA:H - Even unweaponized, dereferencing the freed mgmt_pending_cmd oopses the kernel \u2014 as reproduced by the KASAN slab-use-after-free in mgmt_add_adv_patterns_monitor_sync \u2014 and can be triggered repeatedly."
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CVE-2026-23191 (GCVE-0-2026-23191)
Vulnerability from cvelistv5
Published
2026-02-14 16:27
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ALSA: aloop: Fix racy access at PCM trigger
The PCM trigger callback of aloop driver tries to check the PCM state
and stop the stream of the tied substream in the corresponding cable.
Since both check and stop operations are performed outside the cable
lock, this may result in UAF when a program attempts to trigger
frequently while opening/closing the tied stream, as spotted by
fuzzers.
For addressing the UAF, this patch changes two things:
- It covers the most of code in loopback_check_format() with
cable->lock spinlock, and add the proper NULL checks. This avoids
already some racy accesses.
- In addition, now we try to check the state of the capture PCM stream
that may be stopped in this function, which was the major pain point
leading to UAF.
References
Impacted products
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"value": "AV:L - The vulnerability is in the ALSA aloop PCM driver, accessed through local sound device files (/dev/snd/pcmC*D*p and /dev/snd/pcmC*D*c). No network or adjacent access path exists.\nAC:L - The attacker fully controls both sides of the race condition \u2014 they can concurrently trigger PCM start on one substream while closing the paired substream. The race is reliably winnable by the attacker, as confirmed by syzbot reproducibility.\nPR:L - Accessing ALSA PCM device files requires a local unprivileged user with audio group membership or equivalent permissions, which is standard on desktop Linux and Android. The snd-aloop module must be loaded, but no root/admin privileges are required to trigger the bug once available.\nUI:N - No user interaction is required. The attacker can open, trigger, and close PCM substreams entirely on their own.\nS:U - The vulnerability and its impact remain within the kernel\u0027s security authority. There is no crossing of a security boundary such as a VM escape or sandbox escape.\nC:H - This is a use-after-free vulnerability where freed loopback_pcm and runtime structures are dereferenced. An attacker can reclaim the freed memory with controlled data, enabling arbitrary kernel memory reads.\nI:H - The UAF allows the attacker to reclaim freed heap objects via heap spraying, providing arbitrary write primitives and potential control flow hijacking through corrupted function pointers in the loopback_pcm or runtime structures.\nA:H - The use-after-free reliably causes kernel crashes (oops/panic) when the freed memory is accessed, as demonstrated by the syzbot fuzzer report."
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CVE-2023-53539 (GCVE-0-2023-53539)
Vulnerability from cvelistv5
Published
2025-10-04 15:16
Modified
2026-08-05 09:14
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
RDMA/rxe: Fix incomplete state save in rxe_requester
If a send packet is dropped by the IP layer in rxe_requester()
the call to rxe_xmit_packet() can fail with err == -EAGAIN.
To recover, the state of the wqe is restored to the state before
the packet was sent so it can be resent. However, the routines
that save and restore the state miss a significnt part of the
variable state in the wqe, the dma struct which is used to process
through the sge table. And, the state is not saved before the packet
is built which modifies the dma struct.
Under heavy stress testing with many QPs on a fast node sending
large messages to a slow node dropped packets are observed and
the resent packets are corrupted because the dma struct was not
restored. This patch fixes this behavior and allows the test cases
to succeed.
References
| URL | Tags | |
|---|---|---|
Impacted products
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"value": "AV:L - rxe_requester() is the local transmit path, entered only by work requests posted from the local node via /dev/infiniband/uverbs* (ibv_post_send) or by in-kernel ULPs over Soft-RoCE; a remote peer cannot post WRs into this queue. The triggering error also originates in the local IP/qdisc layer.\nAC:L - The attacker fully controls the condition that produces the -EAGAIN drop \u2014 the commit itself describes it arising from many QPs sending large messages, and an unprivileged user can additionally saturate the outbound qdisc of the same netdev to force NET_XMIT_DROP on demand. The rollback path is then hit deterministically and can be retried indefinitely.\nPR:L - Only an unprivileged local account is needed: rdma-core udev rules expose /dev/infiniband/uverbs* mode 0666, so any user (including inside a container) can create QPs and post sends once an rxe link exists. No capability check gates the requester path.\nUI:N - The attacker\u0027s own posted sends plus self-generated network congestion drive the entire sequence; no action by any other user or administrator is required.\nS:U - The corrupted state and its effects stay within the kernel\u0027s RDMA subsystem and the QPs of the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The desynchronized dma cursor makes the requester transmit a different region of registered memory than the PSN/opcode declares, so registered buffer contents are delivered to memory offsets the application never intended, and short/zero-payload packets (e.g. ATOMIC_WRITE with resid already 0) drive the receiving responder to consume data past the declared payload. Treating the state corruption as leverageable for disclosure, this is scored High.\nI:H - This is the core impact \u2014 resent packets carry the wrong SGE data, so a multi-packet SEND or RDMA WRITE silently writes truncated/shifted content into the peer\u0027s registered memory while the local completion still reports IB_WC_SUCCESS, giving undetected corruption of application and (for NFS/RDMA, iSER, NVMe-oF, SMB Direct over rxe) on-disk data.\nA:H - When the dropped packet was the LAST of a message, the retry emits a zero-length END packet that the responder rejects with RESPST_ERR_LENGTH (rxe_resp.c:378-382), and early-terminated WRITEs trip the pktlen check in check_rkey(); either produces NAK_INVALID_REQUEST, driving both RC QPs into the error state and destroying the connection along with all in-flight and queued work."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T09:14:42.566Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/70518f3aaf5a059b691867d7d2d46b999319656a"
},
{
"url": "https://git.kernel.org/stable/c/2f2a6422287fe29f9343247d77b645100ece0652"
},
{
"url": "https://git.kernel.org/stable/c/255c0e60e1d16874fc151358d94bc8df661600dd"
},
{
"url": "https://git.kernel.org/stable/c/5d122db2ff80cd2aed4dcd630befb56b51ddf947"
}
],
"title": "RDMA/rxe: Fix incomplete state save in rxe_requester",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2023-53539",
"datePublished": "2025-10-04T15:16:49.379Z",
"dateReserved": "2025-10-04T15:14:15.919Z",
"dateUpdated": "2026-08-05T09:14:42.566Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2022-50053 (GCVE-0-2022-50053)
Vulnerability from cvelistv5
Published
2025-06-18 11:01
Modified
2026-05-11 19:11
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
iavf: Fix reset error handling
Do not call iavf_close in iavf_reset_task error handling. Doing so can
lead to double call of napi_disable, which can lead to deadlock there.
Removing VF would lead to iavf_remove task being stuck, because it
requires crit_lock, which is held by iavf_close.
Call iavf_disable_vf if reset fail, so that driver will clean up
remaining invalid resources.
During rapid VF resets, HW can fail to setup VF mailbox. Wrong
error handling can lead to iavf_remove being stuck with:
[ 5218.999087] iavf 0000:82:01.0: Failed to init adminq: -53
...
[ 5267.189211] INFO: task repro.sh:11219 blocked for more than 30 seconds.
[ 5267.189520] Tainted: G S E 5.18.0-04958-ga54ce3703613-dirty #1
[ 5267.189764] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 5267.190062] task:repro.sh state:D stack: 0 pid:11219 ppid: 8162 flags:0x00000000
[ 5267.190347] Call Trace:
[ 5267.190647] <TASK>
[ 5267.190927] __schedule+0x460/0x9f0
[ 5267.191264] schedule+0x44/0xb0
[ 5267.191563] schedule_preempt_disabled+0x14/0x20
[ 5267.191890] __mutex_lock.isra.12+0x6e3/0xac0
[ 5267.192237] ? iavf_remove+0xf9/0x6c0 [iavf]
[ 5267.192565] iavf_remove+0x12a/0x6c0 [iavf]
[ 5267.192911] ? _raw_spin_unlock_irqrestore+0x1e/0x40
[ 5267.193285] pci_device_remove+0x36/0xb0
[ 5267.193619] device_release_driver_internal+0xc1/0x150
[ 5267.193974] pci_stop_bus_device+0x69/0x90
[ 5267.194361] pci_stop_and_remove_bus_device+0xe/0x20
[ 5267.194735] pci_iov_remove_virtfn+0xba/0x120
[ 5267.195130] sriov_disable+0x2f/0xe0
[ 5267.195506] ice_free_vfs+0x7d/0x2f0 [ice]
[ 5267.196056] ? pci_get_device+0x4f/0x70
[ 5267.196496] ice_sriov_configure+0x78/0x1a0 [ice]
[ 5267.196995] sriov_numvfs_store+0xfe/0x140
[ 5267.197466] kernfs_fop_write_iter+0x12e/0x1c0
[ 5267.197918] new_sync_write+0x10c/0x190
[ 5267.198404] vfs_write+0x24e/0x2d0
[ 5267.198886] ksys_write+0x5c/0xd0
[ 5267.199367] do_syscall_64+0x3a/0x80
[ 5267.199827] entry_SYSCALL_64_after_hwframe+0x46/0xb0
[ 5267.200317] RIP: 0033:0x7f5b381205c8
[ 5267.200814] RSP: 002b:00007fff8c7e8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 5267.201981] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5b381205c8
[ 5267.202620] RDX: 0000000000000002 RSI: 00005569420ee900 RDI: 0000000000000001
[ 5267.203426] RBP: 00005569420ee900 R08: 000000000000000a R09: 00007f5b38180820
[ 5267.204327] R10: 000000000000000a R11: 0000000000000246 R12: 00007f5b383c06e0
[ 5267.205193] R13: 0000000000000002 R14: 00007f5b383bb880 R15: 0000000000000002
[ 5267.206041] </TASK>
[ 5267.206970] Kernel panic - not syncing: hung_task: blocked tasks
[ 5267.207809] CPU: 48 PID: 551 Comm: khungtaskd Kdump: loaded Tainted: G S E 5.18.0-04958-ga54ce3703613-dirty #1
[ 5267.208726] Hardware name: Dell Inc. PowerEdge R730/0WCJNT, BIOS 2.11.0 11/02/2019
[ 5267.209623] Call Trace:
[ 5267.210569] <TASK>
[ 5267.211480] dump_stack_lvl+0x33/0x42
[ 5267.212472] panic+0x107/0x294
[ 5267.213467] watchdog.cold.8+0xc/0xbb
[ 5267.214413] ? proc_dohung_task_timeout_secs+0x30/0x30
[ 5267.215511] kthread+0xf4/0x120
[ 5267.216459] ? kthread_complete_and_exit+0x20/0x20
[ 5267.217505] ret_from_fork+0x22/0x30
[ 5267.218459] </TASK>
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/intel/iavf/iavf_main.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "743dc4377bbac06a6fe44c3c5baf75a49439678a",
"status": "affected",
"version": "f0db78928783f0a4cce4940e8c03c2e9a760e629",
"versionType": "git"
},
{
"lessThan": "0828e27971f18ea317710acb228afe6e72606082",
"status": "affected",
"version": "f0db78928783f0a4cce4940e8c03c2e9a760e629",
"versionType": "git"
},
{
"lessThan": "31071173771e079f7bc08dacd61e0db913262fbf",
"status": "affected",
"version": "f0db78928783f0a4cce4940e8c03c2e9a760e629",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/intel/iavf/iavf_main.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.14"
},
{
"lessThan": "4.14",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.63",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.19.*",
"status": "unaffected",
"version": "5.19.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.0",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.63",
"versionStartIncluding": "4.14",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.19.4",
"versionStartIncluding": "4.14",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.0",
"versionStartIncluding": "4.14",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\niavf: Fix reset error handling\n\nDo not call iavf_close in iavf_reset_task error handling. Doing so can\nlead to double call of napi_disable, which can lead to deadlock there.\nRemoving VF would lead to iavf_remove task being stuck, because it\nrequires crit_lock, which is held by iavf_close.\nCall iavf_disable_vf if reset fail, so that driver will clean up\nremaining invalid resources.\nDuring rapid VF resets, HW can fail to setup VF mailbox. Wrong\nerror handling can lead to iavf_remove being stuck with:\n[ 5218.999087] iavf 0000:82:01.0: Failed to init adminq: -53\n...\n[ 5267.189211] INFO: task repro.sh:11219 blocked for more than 30 seconds.\n[ 5267.189520] Tainted: G S E 5.18.0-04958-ga54ce3703613-dirty #1\n[ 5267.189764] \"echo 0 \u003e /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\n[ 5267.190062] task:repro.sh state:D stack: 0 pid:11219 ppid: 8162 flags:0x00000000\n[ 5267.190347] Call Trace:\n[ 5267.190647] \u003cTASK\u003e\n[ 5267.190927] __schedule+0x460/0x9f0\n[ 5267.191264] schedule+0x44/0xb0\n[ 5267.191563] schedule_preempt_disabled+0x14/0x20\n[ 5267.191890] __mutex_lock.isra.12+0x6e3/0xac0\n[ 5267.192237] ? iavf_remove+0xf9/0x6c0 [iavf]\n[ 5267.192565] iavf_remove+0x12a/0x6c0 [iavf]\n[ 5267.192911] ? _raw_spin_unlock_irqrestore+0x1e/0x40\n[ 5267.193285] pci_device_remove+0x36/0xb0\n[ 5267.193619] device_release_driver_internal+0xc1/0x150\n[ 5267.193974] pci_stop_bus_device+0x69/0x90\n[ 5267.194361] pci_stop_and_remove_bus_device+0xe/0x20\n[ 5267.194735] pci_iov_remove_virtfn+0xba/0x120\n[ 5267.195130] sriov_disable+0x2f/0xe0\n[ 5267.195506] ice_free_vfs+0x7d/0x2f0 [ice]\n[ 5267.196056] ? pci_get_device+0x4f/0x70\n[ 5267.196496] ice_sriov_configure+0x78/0x1a0 [ice]\n[ 5267.196995] sriov_numvfs_store+0xfe/0x140\n[ 5267.197466] kernfs_fop_write_iter+0x12e/0x1c0\n[ 5267.197918] new_sync_write+0x10c/0x190\n[ 5267.198404] vfs_write+0x24e/0x2d0\n[ 5267.198886] ksys_write+0x5c/0xd0\n[ 5267.199367] do_syscall_64+0x3a/0x80\n[ 5267.199827] entry_SYSCALL_64_after_hwframe+0x46/0xb0\n[ 5267.200317] RIP: 0033:0x7f5b381205c8\n[ 5267.200814] RSP: 002b:00007fff8c7e8c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001\n[ 5267.201981] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f5b381205c8\n[ 5267.202620] RDX: 0000000000000002 RSI: 00005569420ee900 RDI: 0000000000000001\n[ 5267.203426] RBP: 00005569420ee900 R08: 000000000000000a R09: 00007f5b38180820\n[ 5267.204327] R10: 000000000000000a R11: 0000000000000246 R12: 00007f5b383c06e0\n[ 5267.205193] R13: 0000000000000002 R14: 00007f5b383bb880 R15: 0000000000000002\n[ 5267.206041] \u003c/TASK\u003e\n[ 5267.206970] Kernel panic - not syncing: hung_task: blocked tasks\n[ 5267.207809] CPU: 48 PID: 551 Comm: khungtaskd Kdump: loaded Tainted: G S E 5.18.0-04958-ga54ce3703613-dirty #1\n[ 5267.208726] Hardware name: Dell Inc. PowerEdge R730/0WCJNT, BIOS 2.11.0 11/02/2019\n[ 5267.209623] Call Trace:\n[ 5267.210569] \u003cTASK\u003e\n[ 5267.211480] dump_stack_lvl+0x33/0x42\n[ 5267.212472] panic+0x107/0x294\n[ 5267.213467] watchdog.cold.8+0xc/0xbb\n[ 5267.214413] ? proc_dohung_task_timeout_secs+0x30/0x30\n[ 5267.215511] kthread+0xf4/0x120\n[ 5267.216459] ? kthread_complete_and_exit+0x20/0x20\n[ 5267.217505] ret_from_fork+0x22/0x30\n[ 5267.218459] \u003c/TASK\u003e"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T19:11:56.277Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/743dc4377bbac06a6fe44c3c5baf75a49439678a"
},
{
"url": "https://git.kernel.org/stable/c/0828e27971f18ea317710acb228afe6e72606082"
},
{
"url": "https://git.kernel.org/stable/c/31071173771e079f7bc08dacd61e0db913262fbf"
}
],
"title": "iavf: Fix reset error handling",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2022-50053",
"datePublished": "2025-06-18T11:01:58.164Z",
"dateReserved": "2025-06-18T10:57:27.403Z",
"dateUpdated": "2026-05-11T19:11:56.277Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2025-40064 (GCVE-0-2025-40064)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-08-05 12:07
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
smc: Fix use-after-free in __pnet_find_base_ndev().
syzbot reported use-after-free of net_device in __pnet_find_base_ndev(),
which was called during connect(). [0]
smc_pnet_find_ism_resource() fetches sk_dst_get(sk)->dev and passes
down to pnet_find_base_ndev(), where RTNL is held. Then, UAF happened
at __pnet_find_base_ndev() when the dev is first used.
This means dev had already been freed before acquiring RTNL in
pnet_find_base_ndev().
While dev is going away, dst->dev could be swapped with blackhole_netdev,
and the dev's refcnt by dst will be released.
We must hold dev's refcnt before calling smc_pnet_find_ism_resource().
Also, smc_pnet_find_roce_resource() has the same problem.
Let's use __sk_dst_get() and dst_dev_rcu() in the two functions.
[0]:
BUG: KASAN: use-after-free in __pnet_find_base_ndev+0x1b1/0x1c0 net/smc/smc_pnet.c:926
Read of size 1 at addr ffff888036bac33a by task syz.0.3632/18609
CPU: 1 UID: 0 PID: 18609 Comm: syz.0.3632 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Call Trace:
<TASK>
dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0xca/0x240 mm/kasan/report.c:482
kasan_report+0x118/0x150 mm/kasan/report.c:595
__pnet_find_base_ndev+0x1b1/0x1c0 net/smc/smc_pnet.c:926
pnet_find_base_ndev net/smc/smc_pnet.c:946 [inline]
smc_pnet_find_ism_by_pnetid net/smc/smc_pnet.c:1103 [inline]
smc_pnet_find_ism_resource+0xef/0x390 net/smc/smc_pnet.c:1154
smc_find_ism_device net/smc/af_smc.c:1030 [inline]
smc_find_proposal_devices net/smc/af_smc.c:1115 [inline]
__smc_connect+0x372/0x1890 net/smc/af_smc.c:1545
smc_connect+0x877/0xd90 net/smc/af_smc.c:1715
__sys_connect_file net/socket.c:2086 [inline]
__sys_connect+0x313/0x440 net/socket.c:2105
__do_sys_connect net/socket.c:2111 [inline]
__se_sys_connect net/socket.c:2108 [inline]
__x64_sys_connect+0x7a/0x90 net/socket.c:2108
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f47cbf8eba9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f47ccdb1038 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
RAX: ffffffffffffffda RBX: 00007f47cc1d5fa0 RCX: 00007f47cbf8eba9
RDX: 0000000000000010 RSI: 0000200000000280 RDI: 000000000000000b
RBP: 00007f47cc011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f47cc1d6038 R14: 00007f47cc1d5fa0 R15: 00007ffc512f8aa8
</TASK>
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888036bacd00 pfn:0x36bac
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 ffffea0001243d08 ffff8880b863fdc0 0000000000000000
raw: ffff888036bacd00 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 2, migratetype Unmovable, gfp_mask 0x446dc0(GFP_KERNEL_ACCOUNT|__GFP_ZERO|__GFP_NOWARN|__GFP_RETRY_MAYFAIL|__GFP_COMP), pid 16741, tgid 16741 (syz-executor), ts 343313197788, free_ts 380670750466
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1851
prep_new_page mm/page_alloc.c:1859 [inline]
get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3858
__alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5148
alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2416
___kmalloc_large_node+0x5f/0x1b0 mm/slub.c:4317
__kmalloc_large_node_noprof+0x18/0x90 mm/slub.c:4348
__do_kmalloc_node mm/slub.c:4364 [inline]
__kvmalloc_node
---truncated---
References
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2025-40064",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-16T19:39:09.971835Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-16T19:40:55.918Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/smc/smc_pnet.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "233927b645cb7a14bb98d23ac72e4c7243a9f0d9",
"status": "affected",
"version": "0afff91c6f5ecef27715ea71e34dc2baacba1060",
"versionType": "git"
},
{
"lessThan": "3d3466878afd8d43ec0ca2facfbc7f03e40d0f79",
"status": "affected",
"version": "0afff91c6f5ecef27715ea71e34dc2baacba1060",
"versionType": "git"
}
]
},
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CVE-2026-23111 (GCVE-0-2026-23111)
Vulnerability from cvelistv5
Published
2026-02-13 13:29
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate()
nft_map_catchall_activate() has an inverted element activity check
compared to its non-catchall counterpart nft_mapelem_activate() and
compared to what is logically required.
nft_map_catchall_activate() is called from the abort path to re-activate
catchall map elements that were deactivated during a failed transaction.
It should skip elements that are already active (they don't need
re-activation) and process elements that are inactive (they need to be
restored). Instead, the current code does the opposite: it skips inactive
elements and processes active ones.
Compare the non-catchall activate callback, which is correct:
nft_mapelem_activate():
if (nft_set_elem_active(ext, iter->genmask))
return 0; /* skip active, process inactive */
With the buggy catchall version:
nft_map_catchall_activate():
if (!nft_set_elem_active(ext, genmask))
continue; /* skip inactive, process active */
The consequence is that when a DELSET operation is aborted,
nft_setelem_data_activate() is never called for the catchall element.
For NFT_GOTO verdict elements, this means nft_data_hold() is never
called to restore the chain->use reference count. Each abort cycle
permanently decrements chain->use. Once chain->use reaches zero,
DELCHAIN succeeds and frees the chain while catchall verdict elements
still reference it, resulting in a use-after-free.
This is exploitable for local privilege escalation from an unprivileged
user via user namespaces + nftables on distributions that enable
CONFIG_USER_NS and CONFIG_NF_TABLES.
Fix by removing the negation so the check matches nft_mapelem_activate():
skip active elements, process inactive ones.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 25aa2ad37c2162be1c0bc4fe6397f7e4c13f00f8 Version: d60be2da67d172aecf866302c91ea11533eca4d9 Version: 628bd3e49cba1c066228e23d71a852c23e26da73 Version: 628bd3e49cba1c066228e23d71a852c23e26da73 Version: 628bd3e49cba1c066228e23d71a852c23e26da73 Version: 628bd3e49cba1c066228e23d71a852c23e26da73 Version: bc9f791d2593f17e39f87c6e2b3a36549a3705b1 Version: 3c7ec098e3b588434a8b07ea9b5b36f04cef1f50 Version: a136b7942ad2a50de708f76ea299ccb45ac7a7f9 Version: dc7cdf8cbcbf8b13de1df93f356ec04cdeef5c41 Version: 5.15.121 ≤ Version: 6.1.36 ≤ Version: 4.19.316 ≤ Version: 5.4.262 ≤ Version: 5.10.188 ≤ Version: 6.3.10 ≤ |
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CVE-2026-23066 (GCVE-0-2026-23066)
Vulnerability from cvelistv5
Published
2026-02-04 16:07
Modified
2026-08-05 12:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
rxrpc: Fix recvmsg() unconditional requeue
If rxrpc_recvmsg() fails because MSG_DONTWAIT was specified but the call at
the front of the recvmsg queue already has its mutex locked, it requeues
the call - whether or not the call is already queued. The call may be on
the queue because MSG_PEEK was also passed and so the call was not dequeued
or because the I/O thread requeued it.
The unconditional requeue may then corrupt the recvmsg queue, leading to
things like UAFs or refcount underruns.
Fix this by only requeuing the call if it isn't already on the queue - and
moving it to the front if it is already queued. If we don't queue it, we
have to put the ref we obtained by dequeuing it.
Also, MSG_PEEK doesn't dequeue the call so shouldn't call
rxrpc_notify_socket() for the call if we didn't use up all the data on the
queue, so fix that also.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 540b1c48c37ac0ad66212004db21e1ff7e2d78be Version: 540b1c48c37ac0ad66212004db21e1ff7e2d78be Version: 540b1c48c37ac0ad66212004db21e1ff7e2d78be Version: 540b1c48c37ac0ad66212004db21e1ff7e2d78be Version: 540b1c48c37ac0ad66212004db21e1ff7e2d78be Version: 540b1c48c37ac0ad66212004db21e1ff7e2d78be Version: 540b1c48c37ac0ad66212004db21e1ff7e2d78be |
||
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CVE-2026-23144 (GCVE-0-2026-23144)
Vulnerability from cvelistv5
Published
2026-02-14 15:36
Modified
2026-06-11 18:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mm/damon/sysfs: cleanup attrs subdirs on context dir setup failure
When a context DAMON sysfs directory setup is failed after setup of attrs/
directory, subdirectories of attrs/ directory are not cleaned up. As a
result, DAMON sysfs interface is nearly broken until the system reboots,
and the memory for the unremoved directory is leaked.
Cleanup the directories under such failures.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2025-38248 (GCVE-0-2025-38248)
Vulnerability from cvelistv5
Published
2025-07-09 10:42
Modified
2026-08-05 12:00
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bridge: mcast: Fix use-after-free during router port configuration
The bridge maintains a global list of ports behind which a multicast
router resides. The list is consulted during forwarding to ensure
multicast packets are forwarded to these ports even if the ports are not
member in the matching MDB entry.
When per-VLAN multicast snooping is enabled, the per-port multicast
context is disabled on each port and the port is removed from the global
router port list:
# ip link add name br1 up type bridge vlan_filtering 1 mcast_snooping 1
# ip link add name dummy1 up master br1 type dummy
# ip link set dev dummy1 type bridge_slave mcast_router 2
$ bridge -d mdb show | grep router
router ports on br1: dummy1
# ip link set dev br1 type bridge mcast_vlan_snooping 1
$ bridge -d mdb show | grep router
However, the port can be re-added to the global list even when per-VLAN
multicast snooping is enabled:
# ip link set dev dummy1 type bridge_slave mcast_router 0
# ip link set dev dummy1 type bridge_slave mcast_router 2
$ bridge -d mdb show | grep router
router ports on br1: dummy1
Since commit 4b30ae9adb04 ("net: bridge: mcast: re-implement
br_multicast_{enable, disable}_port functions"), when per-VLAN multicast
snooping is enabled, multicast disablement on a port will disable the
per-{port, VLAN} multicast contexts and not the per-port one. As a
result, a port will remain in the global router port list even after it
is deleted. This will lead to a use-after-free [1] when the list is
traversed (when adding a new port to the list, for example):
# ip link del dev dummy1
# ip link add name dummy2 up master br1 type dummy
# ip link set dev dummy2 type bridge_slave mcast_router 2
Similarly, stale entries can also be found in the per-VLAN router port
list. When per-VLAN multicast snooping is disabled, the per-{port, VLAN}
contexts are disabled on each port and the port is removed from the
per-VLAN router port list:
# ip link add name br1 up type bridge vlan_filtering 1 mcast_snooping 1 mcast_vlan_snooping 1
# ip link add name dummy1 up master br1 type dummy
# bridge vlan add vid 2 dev dummy1
# bridge vlan global set vid 2 dev br1 mcast_snooping 1
# bridge vlan set vid 2 dev dummy1 mcast_router 2
$ bridge vlan global show dev br1 vid 2 | grep router
router ports: dummy1
# ip link set dev br1 type bridge mcast_vlan_snooping 0
$ bridge vlan global show dev br1 vid 2 | grep router
However, the port can be re-added to the per-VLAN list even when
per-VLAN multicast snooping is disabled:
# bridge vlan set vid 2 dev dummy1 mcast_router 0
# bridge vlan set vid 2 dev dummy1 mcast_router 2
$ bridge vlan global show dev br1 vid 2 | grep router
router ports: dummy1
When the VLAN is deleted from the port, the per-{port, VLAN} multicast
context will not be disabled since multicast snooping is not enabled
on the VLAN. As a result, the port will remain in the per-VLAN router
port list even after it is no longer member in the VLAN. This will lead
to a use-after-free [2] when the list is traversed (when adding a new
port to the list, for example):
# ip link add name dummy2 up master br1 type dummy
# bridge vlan add vid 2 dev dummy2
# bridge vlan del vid 2 dev dummy1
# bridge vlan set vid 2 dev dummy2 mcast_router 2
Fix these issues by removing the port from the relevant (global or
per-VLAN) router port list in br_multicast_port_ctx_deinit(). The
function is invoked during port deletion with the per-port multicast
context and during VLAN deletion with the per-{port, VLAN} multicast
context.
Note that deleting the multicast router timer is not enough as it only
takes care of the temporary multicast router states (1 or 3) and not the
permanent one (2).
[1]
BUG: KASAN: slab-out-of-bounds in br_multicast_add_router.part.0+0x3f1/0x560
Write of size 8 at addr ffff888004a67328 by task ip/384
[...]
Call Trace:
<TASK>
dump_stack
---truncated---
References
| URL | Tags | |
|---|---|---|
Impacted products
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"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The dangling router-port entry is created and triggered through rtnetlink configuration messages (RTM_NEWLINK/RTM_SETLINK with IFLA_BRPORT_MULTICAST_ROUTER and RTM_NEWVLAN options), which require a local socket. Per kernel guidance, netlink-reachable bugs are Local.\nAC:L - The bug is a deterministic state-machine error, not a race: a fixed sequence of `ip link`/`bridge vlan` commands leaves the freed port on the router list and the very next mcast_router set triggers the UAF, as shown by the reproducers and the syzkaller report.\nPR:L - Bridge port and VLAN configuration only requires CAP_NET_ADMIN in the netns owning the device, which any unprivileged user obtains via `unshare -Urn` and then creates the bridge, dummy ports and multicast options entirely inside that namespace.\nUI:N - The attacker performs the entire configuration sequence themselves through their own netlink socket; no victim action is needed at any point.\nS:U - The corruption stays within the kernel\u0027s own memory and security authority, with no crossing of a VM, IOMMU or sandbox boundary.\nC:H - List traversal reads `pmctx-\u003eport` and the `hlist_node` links out of freed slab memory, and the resulting dangling entries are also walked on the multicast forwarding path, giving an attacker who reallocates the freed object a means to read kernel memory and defeat KASLR.\nI:H - `hlist_add_behind_rcu()` writes 8 bytes into the freed (attacker-reallocatable) object and later `hlist_del_init_rcu()` writes through an attacker-controlled `pprev`, yielding a controlled-write primitive; freed ports are additionally used to deliver packets via a dangling `net_device`, enabling control-flow hijack.\nA:H - The use-after-free corrupts the bridge router list and reliably produces a KASAN-confirmed slab-use-after-free/out-of-bounds access, causing kernel oops or panic, and can be repeated at will."
}
]
}
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"url": "https://git.kernel.org/stable/c/4d3c2a1d4c7c33103f1ddfdbc5cfe1ea4f6d0dcd"
},
{
"url": "https://git.kernel.org/stable/c/bdced577da71b118b6ed4242ebd47f81bf54d406"
},
{
"url": "https://git.kernel.org/stable/c/f05a4f9e959e0fc098046044c650acf897ea52d2"
},
{
"url": "https://git.kernel.org/stable/c/7544f3f5b0b58c396f374d060898b5939da31709"
}
],
"title": "bridge: mcast: Fix use-after-free during router port configuration",
"x_generator": {
"engine": "bippy-1.2.0"
}
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},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-38248",
"datePublished": "2025-07-09T10:42:29.133Z",
"dateReserved": "2025-04-16T04:51:23.997Z",
"dateUpdated": "2026-08-05T12:00:42.080Z",
"state": "PUBLISHED"
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CVE-2025-71238 (GCVE-0-2025-71238)
Vulnerability from cvelistv5
Published
2026-03-04 14:36
Modified
2026-06-11 17:53
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: qla2xxx: Fix bsg_done() causing double free
Kernel panic observed on system,
[5353358.825191] BUG: unable to handle page fault for address: ff5f5e897b024000
[5353358.825194] #PF: supervisor write access in kernel mode
[5353358.825195] #PF: error_code(0x0002) - not-present page
[5353358.825196] PGD 100006067 P4D 0
[5353358.825198] Oops: 0002 [#1] PREEMPT SMP NOPTI
[5353358.825200] CPU: 5 PID: 2132085 Comm: qlafwupdate.sub Kdump: loaded Tainted: G W L ------- --- 5.14.0-503.34.1.el9_5.x86_64 #1
[5353358.825203] Hardware name: HPE ProLiant DL360 Gen11/ProLiant DL360 Gen11, BIOS 2.44 01/17/2025
[5353358.825204] RIP: 0010:memcpy_erms+0x6/0x10
[5353358.825211] RSP: 0018:ff591da8f4f6b710 EFLAGS: 00010246
[5353358.825212] RAX: ff5f5e897b024000 RBX: 0000000000007090 RCX: 0000000000001000
[5353358.825213] RDX: 0000000000001000 RSI: ff591da8f4fed090 RDI: ff5f5e897b024000
[5353358.825214] RBP: 0000000000010000 R08: ff5f5e897b024000 R09: 0000000000000000
[5353358.825215] R10: ff46cf8c40517000 R11: 0000000000000001 R12: 0000000000008090
[5353358.825216] R13: ff591da8f4f6b720 R14: 0000000000001000 R15: 0000000000000000
[5353358.825218] FS: 00007f1e88d47740(0000) GS:ff46cf935f940000(0000) knlGS:0000000000000000
[5353358.825219] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[5353358.825220] CR2: ff5f5e897b024000 CR3: 0000000231532004 CR4: 0000000000771ef0
[5353358.825221] PKRU: 55555554
[5353358.825222] Call Trace:
[5353358.825223] <TASK>
[5353358.825224] ? show_trace_log_lvl+0x1c4/0x2df
[5353358.825229] ? show_trace_log_lvl+0x1c4/0x2df
[5353358.825232] ? sg_copy_buffer+0xc8/0x110
[5353358.825236] ? __die_body.cold+0x8/0xd
[5353358.825238] ? page_fault_oops+0x134/0x170
[5353358.825242] ? kernelmode_fixup_or_oops+0x84/0x110
[5353358.825244] ? exc_page_fault+0xa8/0x150
[5353358.825247] ? asm_exc_page_fault+0x22/0x30
[5353358.825252] ? memcpy_erms+0x6/0x10
[5353358.825253] sg_copy_buffer+0xc8/0x110
[5353358.825259] qla2x00_process_vendor_specific+0x652/0x1320 [qla2xxx]
[5353358.825317] qla24xx_bsg_request+0x1b2/0x2d0 [qla2xxx]
Most routines in qla_bsg.c call bsg_done() only for success cases.
However a few invoke it for failure case as well leading to a double
free. Validate before calling bsg_done().
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1b81e7f3019d632a707e07927e946ffbbc102910 Version: 1b81e7f3019d632a707e07927e946ffbbc102910 Version: 1b81e7f3019d632a707e07927e946ffbbc102910 Version: 1b81e7f3019d632a707e07927e946ffbbc102910 Version: 1b81e7f3019d632a707e07927e946ffbbc102910 Version: 1b81e7f3019d632a707e07927e946ffbbc102910 Version: 1b81e7f3019d632a707e07927e946ffbbc102910 Version: 1b81e7f3019d632a707e07927e946ffbbc102910 |
||
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"status": "unaffected",
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{
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{
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},
{
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{
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"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Fix bsg_done() causing double free\n\nKernel panic observed on system,\n\n[5353358.825191] BUG: unable to handle page fault for address: ff5f5e897b024000\n[5353358.825194] #PF: supervisor write access in kernel mode\n[5353358.825195] #PF: error_code(0x0002) - not-present page\n[5353358.825196] PGD 100006067 P4D 0\n[5353358.825198] Oops: 0002 [#1] PREEMPT SMP NOPTI\n[5353358.825200] CPU: 5 PID: 2132085 Comm: qlafwupdate.sub Kdump: loaded Tainted: G W L ------- --- 5.14.0-503.34.1.el9_5.x86_64 #1\n[5353358.825203] Hardware name: HPE ProLiant DL360 Gen11/ProLiant DL360 Gen11, BIOS 2.44 01/17/2025\n[5353358.825204] RIP: 0010:memcpy_erms+0x6/0x10\n[5353358.825211] RSP: 0018:ff591da8f4f6b710 EFLAGS: 00010246\n[5353358.825212] RAX: ff5f5e897b024000 RBX: 0000000000007090 RCX: 0000000000001000\n[5353358.825213] RDX: 0000000000001000 RSI: ff591da8f4fed090 RDI: ff5f5e897b024000\n[5353358.825214] RBP: 0000000000010000 R08: ff5f5e897b024000 R09: 0000000000000000\n[5353358.825215] R10: ff46cf8c40517000 R11: 0000000000000001 R12: 0000000000008090\n[5353358.825216] R13: ff591da8f4f6b720 R14: 0000000000001000 R15: 0000000000000000\n[5353358.825218] FS: 00007f1e88d47740(0000) GS:ff46cf935f940000(0000) knlGS:0000000000000000\n[5353358.825219] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[5353358.825220] CR2: ff5f5e897b024000 CR3: 0000000231532004 CR4: 0000000000771ef0\n[5353358.825221] PKRU: 55555554\n[5353358.825222] Call Trace:\n[5353358.825223] \u003cTASK\u003e\n[5353358.825224] ? show_trace_log_lvl+0x1c4/0x2df\n[5353358.825229] ? show_trace_log_lvl+0x1c4/0x2df\n[5353358.825232] ? sg_copy_buffer+0xc8/0x110\n[5353358.825236] ? __die_body.cold+0x8/0xd\n[5353358.825238] ? page_fault_oops+0x134/0x170\n[5353358.825242] ? kernelmode_fixup_or_oops+0x84/0x110\n[5353358.825244] ? exc_page_fault+0xa8/0x150\n[5353358.825247] ? asm_exc_page_fault+0x22/0x30\n[5353358.825252] ? memcpy_erms+0x6/0x10\n[5353358.825253] sg_copy_buffer+0xc8/0x110\n[5353358.825259] qla2x00_process_vendor_specific+0x652/0x1320 [qla2xxx]\n[5353358.825317] qla24xx_bsg_request+0x1b2/0x2d0 [qla2xxx]\n\nMost routines in qla_bsg.c call bsg_done() only for success cases.\nHowever a few invoke it for failure case as well leading to a double\nfree. Validate before calling bsg_done()."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T21:57:00.763Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"references": [
{
"url": "https://git.kernel.org/stable/c/057a5bdc481e58ab853117254867ffb22caf9f6e"
},
{
"url": "https://git.kernel.org/stable/c/f2bbb4db0e4a4fbd5e649c0b5d8733f61da24720"
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},
{
"url": "https://git.kernel.org/stable/c/31f33b856d2324d86bcaef295f4d210477a1c018"
},
{
"url": "https://git.kernel.org/stable/c/708003e1bc857dd014d4c44278d7d77c26f91b1c"
},
{
"url": "https://git.kernel.org/stable/c/c2c68225b1456f4d0d393b5a8778d51bb0d5b1d0"
}
],
"title": "scsi: qla2xxx: Fix bsg_done() causing double free",
"x_generator": {
"engine": "bippy-1.2.0"
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}
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"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-71238",
"datePublished": "2026-03-04T14:36:36.579Z",
"dateReserved": "2026-02-18T14:25:13.845Z",
"dateUpdated": "2026-06-11T17:53:38.169Z",
"state": "PUBLISHED"
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}
CVE-2025-68800 (GCVE-0-2025-68800)
Vulnerability from cvelistv5
Published
2026-01-13 15:29
Modified
2026-08-05 12:11
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
mlxsw: spectrum_mr: Fix use-after-free when updating multicast route stats
Cited commit added a dedicated mutex (instead of RTNL) to protect the
multicast route list, so that it will not change while the driver
periodically traverses it in order to update the kernel about multicast
route stats that were queried from the device.
One instance of list entry deletion (during route replace) was missed
and it can result in a use-after-free [1].
Fix by acquiring the mutex before deleting the entry from the list and
releasing it afterwards.
[1]
BUG: KASAN: slab-use-after-free in mlxsw_sp_mr_stats_update+0x4a5/0x540 drivers/net/ethernet/mellanox/mlxsw/spectrum_mr.c:1006 [mlxsw_spectrum]
Read of size 8 at addr ffff8881523c2fa8 by task kworker/2:5/22043
CPU: 2 UID: 0 PID: 22043 Comm: kworker/2:5 Not tainted 6.18.0-rc1-custom-g1a3d6d7cd014 #1 PREEMPT(full)
Hardware name: Mellanox Technologies Ltd. MSN2010/SA002610, BIOS 5.6.5 08/24/2017
Workqueue: mlxsw_core mlxsw_sp_mr_stats_update [mlxsw_spectrum]
Call Trace:
<TASK>
dump_stack_lvl+0xba/0x110
print_report+0x174/0x4f5
kasan_report+0xdf/0x110
mlxsw_sp_mr_stats_update+0x4a5/0x540 drivers/net/ethernet/mellanox/mlxsw/spectrum_mr.c:1006 [mlxsw_spectrum]
process_one_work+0x9cc/0x18e0
worker_thread+0x5df/0xe40
kthread+0x3b8/0x730
ret_from_fork+0x3e9/0x560
ret_from_fork_asm+0x1a/0x30
</TASK>
Allocated by task 29933:
kasan_save_stack+0x30/0x50
kasan_save_track+0x14/0x30
__kasan_kmalloc+0x8f/0xa0
mlxsw_sp_mr_route_add+0xd8/0x4770 [mlxsw_spectrum]
mlxsw_sp_router_fibmr_event_work+0x371/0xad0 drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c:7965 [mlxsw_spectrum]
process_one_work+0x9cc/0x18e0
worker_thread+0x5df/0xe40
kthread+0x3b8/0x730
ret_from_fork+0x3e9/0x560
ret_from_fork_asm+0x1a/0x30
Freed by task 29933:
kasan_save_stack+0x30/0x50
kasan_save_track+0x14/0x30
__kasan_save_free_info+0x3b/0x70
__kasan_slab_free+0x43/0x70
kfree+0x14e/0x700
mlxsw_sp_mr_route_add+0x2dea/0x4770 drivers/net/ethernet/mellanox/mlxsw/spectrum_mr.c:444 [mlxsw_spectrum]
mlxsw_sp_router_fibmr_event_work+0x371/0xad0 drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c:7965 [mlxsw_spectrum]
process_one_work+0x9cc/0x18e0
worker_thread+0x5df/0xe40
kthread+0x3b8/0x730
ret_from_fork+0x3e9/0x560
ret_from_fork_asm+0x1a/0x30
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: f38656d067257cc43b652958dd154e1ab0773701 Version: f38656d067257cc43b652958dd154e1ab0773701 Version: f38656d067257cc43b652958dd154e1ab0773701 Version: f38656d067257cc43b652958dd154e1ab0773701 Version: f38656d067257cc43b652958dd154e1ab0773701 Version: f38656d067257cc43b652958dd154e1ab0773701 Version: f38656d067257cc43b652958dd154e1ab0773701 |
||
{
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{
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},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-16T16:50:11.101316Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-16T16:50:24.711Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/mellanox/mlxsw/spectrum_mr.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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"status": "affected",
"version": "f38656d067257cc43b652958dd154e1ab0773701",
"versionType": "git"
},
{
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"status": "affected",
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},
{
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"status": "affected",
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"versionType": "git"
},
{
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"versionType": "git"
},
{
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"status": "affected",
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"versionType": "git"
},
{
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"status": "affected",
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"versionType": "git"
},
{
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"status": "affected",
"version": "f38656d067257cc43b652958dd154e1ab0773701",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/ethernet/mellanox/mlxsw/spectrum_mr.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.7"
},
{
"lessThan": "5.7",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.248",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.198",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.160",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.120",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.64",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.19",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.248",
"versionStartIncluding": "5.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.198",
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"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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},
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},
{
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"versionEndExcluding": "6.19",
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"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmlxsw: spectrum_mr: Fix use-after-free when updating multicast route stats\n\nCited commit added a dedicated mutex (instead of RTNL) to protect the\nmulticast route list, so that it will not change while the driver\nperiodically traverses it in order to update the kernel about multicast\nroute stats that were queried from the device.\n\nOne instance of list entry deletion (during route replace) was missed\nand it can result in a use-after-free [1].\n\nFix by acquiring the mutex before deleting the entry from the list and\nreleasing it afterwards.\n\n[1]\nBUG: KASAN: slab-use-after-free in mlxsw_sp_mr_stats_update+0x4a5/0x540 drivers/net/ethernet/mellanox/mlxsw/spectrum_mr.c:1006 [mlxsw_spectrum]\nRead of size 8 at addr ffff8881523c2fa8 by task kworker/2:5/22043\n\nCPU: 2 UID: 0 PID: 22043 Comm: kworker/2:5 Not tainted 6.18.0-rc1-custom-g1a3d6d7cd014 #1 PREEMPT(full)\nHardware name: Mellanox Technologies Ltd. MSN2010/SA002610, BIOS 5.6.5 08/24/2017\nWorkqueue: mlxsw_core mlxsw_sp_mr_stats_update [mlxsw_spectrum]\nCall Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0xba/0x110\n print_report+0x174/0x4f5\n kasan_report+0xdf/0x110\n mlxsw_sp_mr_stats_update+0x4a5/0x540 drivers/net/ethernet/mellanox/mlxsw/spectrum_mr.c:1006 [mlxsw_spectrum]\n process_one_work+0x9cc/0x18e0\n worker_thread+0x5df/0xe40\n kthread+0x3b8/0x730\n ret_from_fork+0x3e9/0x560\n ret_from_fork_asm+0x1a/0x30\n \u003c/TASK\u003e\n\nAllocated by task 29933:\n kasan_save_stack+0x30/0x50\n kasan_save_track+0x14/0x30\n __kasan_kmalloc+0x8f/0xa0\n mlxsw_sp_mr_route_add+0xd8/0x4770 [mlxsw_spectrum]\n mlxsw_sp_router_fibmr_event_work+0x371/0xad0 drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c:7965 [mlxsw_spectrum]\n process_one_work+0x9cc/0x18e0\n worker_thread+0x5df/0xe40\n kthread+0x3b8/0x730\n ret_from_fork+0x3e9/0x560\n ret_from_fork_asm+0x1a/0x30\n\nFreed by task 29933:\n kasan_save_stack+0x30/0x50\n kasan_save_track+0x14/0x30\n __kasan_save_free_info+0x3b/0x70\n __kasan_slab_free+0x43/0x70\n kfree+0x14e/0x700\n mlxsw_sp_mr_route_add+0x2dea/0x4770 drivers/net/ethernet/mellanox/mlxsw/spectrum_mr.c:444 [mlxsw_spectrum]\n mlxsw_sp_router_fibmr_event_work+0x371/0xad0 drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c:7965 [mlxsw_spectrum]\n process_one_work+0x9cc/0x18e0\n worker_thread+0x5df/0xe40\n kthread+0x3b8/0x730\n ret_from_fork+0x3e9/0x560\n ret_from_fork_asm+0x1a/0x30"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The vulnerable replacement is reached through local MRT_ADD_MFC or MRT6_ADD_MFC setsockopt operations; received multicast packets alone only create unresolved entries and do not invoke the replace path.\nAC:L - The caller can repeatedly replace routes and enlarge the route list until the five-second statistics worker overlaps the deletion, making the race attacker-amplifiable and repeatable.\nPR:L - A namespace-scoped CAP_NET_RAW holder can create and register the multicast-routing control socket, after which replacements bypass CAP_NET_ADMIN; this is reachable by namespace-local administrators when the mlxsw device is delegated to their network namespace.\nUI:N - Once the attacker controls the multicast-routing socket, route replacements require no action by another user.\nS:U - The use-after-free compromises the same host kernel security authority in which the vulnerable driver executes; ordinary namespace-to-kernel escalation does not change CVSS scope.\nC:H - Reclaiming the freed route object gives attacker influence over stale route_priv and mfc pointers that the worker dereferences, supporting access to arbitrary kernel memory.\nI:H - The worker performs multiple atomic writes through the stale mfc pointer, allowing a reclaimed object to provide an arbitrary-target write primitive and potential kernel code execution.\nA:H - The demonstrated use-after-free can dereference reclaimed memory or poisoned list links, causing a kernel oops or panic and complete loss of availability."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T12:11:34.101Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/b957366f5611bbaba03dd10ef861283347ddcc88"
},
{
"url": "https://git.kernel.org/stable/c/6e367c361a523a4b54fe618215c64a0ee189caf0"
},
{
"url": "https://git.kernel.org/stable/c/37ca08b35a27ce8fd8e74dd3fd2ae21c23b63b73"
},
{
"url": "https://git.kernel.org/stable/c/5f2831fc593c2b2efbff7dd0dd7441cec76adcd5"
},
{
"url": "https://git.kernel.org/stable/c/216afc198484fde110ebeafc017992266f4596ce"
},
{
"url": "https://git.kernel.org/stable/c/4049a6ace209f4ed150429f86ae796d7d6a4c22b"
},
{
"url": "https://git.kernel.org/stable/c/8ac1dacec458f55f871f7153242ed6ab60373b90"
}
],
"title": "mlxsw: spectrum_mr: Fix use-after-free when updating multicast route stats",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-68800",
"datePublished": "2026-01-13T15:29:09.688Z",
"dateReserved": "2025-12-24T10:30:51.044Z",
"dateUpdated": "2026-08-05T12:11:34.101Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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