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CERTFR-2024-AVI-0926
Vulnerability from certfr_avis
De multiples vulnérabilités ont été découvertes dans le noyau Linux de SUSE. Certaines d'entre elles permettent à un attaquant de provoquer une élévation de privilèges, une atteinte à la confidentialité des données et un contournement de la politique de sécurité.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| SUSE | SUSE Linux Enterprise High Performance Computing | SUSE Linux Enterprise High Performance Computing 15 SP5 | ||
| SUSE | openSUSE Leap | openSUSE Leap 15.5 | ||
| SUSE | SUSE Linux Enterprise Live Patching | SUSE Linux Enterprise Live Patching 15-SP5 | ||
| SUSE | SUSE Manager Server | SUSE Linux Enterprise Server for SAP Applications 12 SP5 | ||
| SUSE | SUSE Manager Server | SUSE Linux Enterprise Server 15 SP2 | ||
| SUSE | SUSE Manager Server | SUSE Linux Enterprise Server for SAP Applications 15 SP5 | ||
| SUSE | SUSE Linux Enterprise High Performance Computing | SUSE Linux Enterprise High Performance Computing 12 SP5 | ||
| SUSE | SUSE Linux Enterprise High Performance Computing | SUSE Linux Enterprise High Performance Computing 15 SP4 | ||
| SUSE | SUSE Linux Enterprise Live Patching | SUSE Linux Enterprise Live Patching 15-SP2 | ||
| SUSE | SUSE Linux Enterprise Live Patching | SUSE Linux Enterprise Live Patching 12-SP5 | ||
| SUSE | openSUSE Leap | openSUSE Leap 15.4 | ||
| SUSE | SUSE Linux Enterprise Live Patching | SUSE Linux Enterprise Live Patching 15-SP6 | ||
| SUSE | SUSE Manager Server | SUSE Linux Enterprise Server 15 SP6 | ||
| SUSE | SUSE Manager Server | SUSE Linux Enterprise Server 12 SP5 | ||
| SUSE | SUSE Manager Server | SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE 11-SP4 | ||
| SUSE | SUSE Manager Server | SUSE Linux Enterprise Server 15 SP4 | ||
| SUSE | SUSE Linux Enterprise Micro | SUSE Linux Enterprise Micro 5.3 | ||
| SUSE | SUSE Manager Server | SUSE Linux Enterprise Server 15 SP5 | ||
| SUSE | SUSE Linux Enterprise Real Time | SUSE Linux Enterprise Real Time 15 SP5 | ||
| SUSE | SUSE Linux Enterprise Real Time | SUSE Linux Enterprise Real Time 15 SP4 | ||
| SUSE | SUSE Manager Server | SUSE Linux Enterprise Server for SAP Applications 15 SP2 | ||
| SUSE | SUSE Manager Server | SUSE Linux Enterprise Server for SAP Applications 15 SP4 | ||
| SUSE | SUSE Linux Enterprise Micro | SUSE Linux Enterprise Micro 5.5 | ||
| SUSE | SUSE Linux Enterprise Real Time | SUSE Linux Enterprise Real Time 15 SP6 | ||
| SUSE | SUSE Manager Server | SUSE Linux Enterprise Server for SAP Applications 15 SP6 | ||
| SUSE | SUSE Linux Enterprise Micro | SUSE Linux Enterprise Micro 5.4 | ||
| SUSE | SUSE Linux Enterprise Live Patching | SUSE Linux Enterprise Live Patching 15-SP4 | ||
| SUSE | SUSE Manager Server | SUSE Linux Enterprise Server 11 SP4 | ||
| SUSE | SUSE Linux Enterprise High Performance Computing | SUSE Linux Enterprise High Performance Computing 15 SP2 |
References
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "SUSE Linux Enterprise High Performance Computing 15 SP5",
"product": {
"name": "SUSE Linux Enterprise High Performance Computing",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "openSUSE Leap 15.5",
"product": {
"name": "openSUSE Leap",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Live Patching 15-SP5",
"product": {
"name": "SUSE Linux Enterprise Live Patching",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server for SAP Applications 12 SP5",
"product": {
"name": "SUSE Manager Server",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server 15 SP2",
"product": {
"name": "SUSE Manager Server",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server for SAP Applications 15 SP5",
"product": {
"name": "SUSE Manager Server",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise High Performance Computing 12 SP5",
"product": {
"name": "SUSE Linux Enterprise High Performance Computing",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise High Performance Computing 15 SP4",
"product": {
"name": "SUSE Linux Enterprise High Performance Computing",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Live Patching 15-SP2",
"product": {
"name": "SUSE Linux Enterprise Live Patching",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Live Patching 12-SP5",
"product": {
"name": "SUSE Linux Enterprise Live Patching",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "openSUSE Leap 15.4",
"product": {
"name": "openSUSE Leap",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Live Patching 15-SP6",
"product": {
"name": "SUSE Linux Enterprise Live Patching",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server 15 SP6",
"product": {
"name": "SUSE Manager Server",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server 12 SP5",
"product": {
"name": "SUSE Manager Server",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE 11-SP4",
"product": {
"name": "SUSE Manager Server",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server 15 SP4",
"product": {
"name": "SUSE Manager Server",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Micro 5.3",
"product": {
"name": "SUSE Linux Enterprise Micro",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server 15 SP5",
"product": {
"name": "SUSE Manager Server",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Real Time 15 SP5",
"product": {
"name": "SUSE Linux Enterprise Real Time",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Real Time 15 SP4",
"product": {
"name": "SUSE Linux Enterprise Real Time",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server for SAP Applications 15 SP2",
"product": {
"name": "SUSE Manager Server",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server for SAP Applications 15 SP4",
"product": {
"name": "SUSE Manager Server",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Micro 5.5",
"product": {
"name": "SUSE Linux Enterprise Micro",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Real Time 15 SP6",
"product": {
"name": "SUSE Linux Enterprise Real Time",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server for SAP Applications 15 SP6",
"product": {
"name": "SUSE Manager Server",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Micro 5.4",
"product": {
"name": "SUSE Linux Enterprise Micro",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Live Patching 15-SP4",
"product": {
"name": "SUSE Linux Enterprise Live Patching",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server 11 SP4",
"product": {
"name": "SUSE Manager Server",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise High Performance Computing 15 SP2",
"product": {
"name": "SUSE Linux Enterprise High Performance Computing",
"vendor": {
"name": "SUSE",
"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-2022-48651",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-48651"
},
{
"name": "CVE-2021-47291",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-47291"
},
{
"name": "CVE-2023-52846",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52846"
},
{
"name": "CVE-2024-26585",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-26585"
},
{
"name": "CVE-2021-47402",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-47402"
},
{
"name": "CVE-2023-6531",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-6531"
},
{
"name": "CVE-2024-26852",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-26852"
},
{
"name": "CVE-2024-27398",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-27398"
},
{
"name": "CVE-2023-52340",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52340"
},
{
"name": "CVE-2024-23307",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-23307"
},
{
"name": "CVE-2024-35950",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-35950"
},
{
"name": "CVE-2021-46955",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-46955"
},
{
"name": "CVE-2024-40902",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-40902"
},
{
"name": "CVE-2024-26610",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-26610"
},
{
"name": "CVE-2024-42104",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42104"
},
{
"name": "CVE-2021-47378",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-47378"
},
{
"name": "CVE-2021-47383",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-47383"
},
{
"name": "CVE-2024-26923",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-26923"
},
{
"name": "CVE-2024-40954",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-40954"
},
{
"name": "CVE-2023-1829",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-1829"
},
{
"name": "CVE-2024-41059",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-41059"
},
{
"name": "CVE-2024-35817",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-35817"
},
{
"name": "CVE-2024-26828",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-26828"
},
{
"name": "CVE-2024-36964",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-36964"
},
{
"name": "CVE-2024-45021",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-45021"
},
{
"name": "CVE-2023-6546",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-6546"
},
{
"name": "CVE-2023-52502",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52502"
},
{
"name": "CVE-2024-35861",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-35861"
},
{
"name": "CVE-2024-40909",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-40909"
},
{
"name": "CVE-2024-42148",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-42148"
},
{
"name": "CVE-2024-26930",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-26930"
},
{
"name": "CVE-2024-26766",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-26766"
},
{
"name": "CVE-2022-48662",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-48662"
},
{
"name": "CVE-2024-38538",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-38538"
},
{
"name": "CVE-2024-36899",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-36899"
},
{
"name": "CVE-2024-26622",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-26622"
}
],
"initial_release_date": "2024-10-25T00:00:00",
"last_revision_date": "2024-10-25T00:00:00",
"links": [],
"reference": "CERTFR-2024-AVI-0926",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2024-10-25T00:00:00.000000"
}
],
"risks": [
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "D\u00e9ni de service"
},
{
"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 SUSE. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une \u00e9l\u00e9vation de privil\u00e8ges, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et un contournement de la politique de s\u00e9curit\u00e9.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux de SUSE",
"vendor_advisories": [
{
"published_at": "2024-10-15",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2024:3624-1",
"url": "https://www.suse.com/support/update/announcement/2024/suse-su-20243624-1"
},
{
"published_at": "2024-10-15",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2024:3627-1",
"url": "https://www.suse.com/support/update/announcement/2024/suse-su-20243627-1"
},
{
"published_at": "2024-10-16",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2024:3643-1",
"url": "https://www.suse.com/support/update/announcement/2024/suse-su-20243643-1"
},
{
"published_at": "2024-10-15",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2024:3631-1",
"url": "https://www.suse.com/support/update/announcement/2024/suse-su-20243631-1"
},
{
"published_at": "2024-10-15",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2024:3632-1",
"url": "https://www.suse.com/support/update/announcement/2024/suse-su-20243632-1"
},
{
"published_at": "2024-10-15",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2024:3628-1",
"url": "https://www.suse.com/support/update/announcement/2024/suse-su-20243628-1"
},
{
"published_at": "2024-10-15",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2024:3625-1",
"url": "https://www.suse.com/support/update/announcement/2024/suse-su-20243625-1"
},
{
"published_at": "2024-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2024:3617-1",
"url": "https://www.suse.com/support/update/announcement/2024/suse-su-20243617-1"
},
{
"published_at": "2024-10-15",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2024:3640-1",
"url": "https://www.suse.com/support/update/announcement/2024/suse-su-20243640-1"
},
{
"published_at": "2024-10-15",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2024:3642-1",
"url": "https://www.suse.com/support/update/announcement/2024/suse-su-20243642-1"
},
{
"published_at": "2024-10-15",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2024:3641-1",
"url": "https://www.suse.com/support/update/announcement/2024/suse-su-20243641-1"
},
{
"published_at": "2024-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2024:3623-1",
"url": "https://www.suse.com/support/update/announcement/2024/suse-su-20243623-1"
},
{
"published_at": "2024-10-15",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2024:3636-1",
"url": "https://www.suse.com/support/update/announcement/2024/suse-su-20243636-1"
},
{
"published_at": "2024-10-15",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2024:3639-1",
"url": "https://www.suse.com/support/update/announcement/2024/suse-su-20243639-1"
},
{
"published_at": "2024-10-15",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2024:3635-1",
"url": "https://www.suse.com/support/update/announcement/2024/suse-su-20243635-1"
},
{
"published_at": "2024-10-15",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2024:3626-1",
"url": "https://www.suse.com/support/update/announcement/2024/suse-su-20243626-1"
},
{
"published_at": "2024-10-15",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2024:3638-1",
"url": "https://www.suse.com/support/update/announcement/2024/suse-su-20243638-1"
}
]
}
CVE-2021-46955 (GCVE-0-2021-46955)
Vulnerability from cvelistv5
Published
2024-02-27 18:46
Modified
2026-08-05 08:45
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
openvswitch: fix stack OOB read while fragmenting IPv4 packets
running openvswitch on kernels built with KASAN, it's possible to see the
following splat while testing fragmentation of IPv4 packets:
BUG: KASAN: stack-out-of-bounds in ip_do_fragment+0x1b03/0x1f60
Read of size 1 at addr ffff888112fc713c by task handler2/1367
CPU: 0 PID: 1367 Comm: handler2 Not tainted 5.12.0-rc6+ #418
Hardware name: Red Hat KVM, BIOS 1.11.1-4.module+el8.1.0+4066+0f1aadab 04/01/2014
Call Trace:
dump_stack+0x92/0xc1
print_address_description.constprop.7+0x1a/0x150
kasan_report.cold.13+0x7f/0x111
ip_do_fragment+0x1b03/0x1f60
ovs_fragment+0x5bf/0x840 [openvswitch]
do_execute_actions+0x1bd5/0x2400 [openvswitch]
ovs_execute_actions+0xc8/0x3d0 [openvswitch]
ovs_packet_cmd_execute+0xa39/0x1150 [openvswitch]
genl_family_rcv_msg_doit.isra.15+0x227/0x2d0
genl_rcv_msg+0x287/0x490
netlink_rcv_skb+0x120/0x380
genl_rcv+0x24/0x40
netlink_unicast+0x439/0x630
netlink_sendmsg+0x719/0xbf0
sock_sendmsg+0xe2/0x110
____sys_sendmsg+0x5ba/0x890
___sys_sendmsg+0xe9/0x160
__sys_sendmsg+0xd3/0x170
do_syscall_64+0x33/0x40
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f957079db07
Code: c3 66 90 41 54 41 89 d4 55 48 89 f5 53 89 fb 48 83 ec 10 e8 eb ec ff ff 44 89 e2 48 89 ee 89 df 41 89 c0 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 48 89 44 24 08 e8 24 ed ff ff 48
RSP: 002b:00007f956ce35a50 EFLAGS: 00000293 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000019 RCX: 00007f957079db07
RDX: 0000000000000000 RSI: 00007f956ce35ae0 RDI: 0000000000000019
RBP: 00007f956ce35ae0 R08: 0000000000000000 R09: 00007f9558006730
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007f956ce37308 R14: 00007f956ce35f80 R15: 00007f956ce35ae0
The buggy address belongs to the page:
page:00000000af2a1d93 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x112fc7
flags: 0x17ffffc0000000()
raw: 0017ffffc0000000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
addr ffff888112fc713c is located in stack of task handler2/1367 at offset 180 in frame:
ovs_fragment+0x0/0x840 [openvswitch]
this frame has 2 objects:
[32, 144) 'ovs_dst'
[192, 424) 'ovs_rt'
Memory state around the buggy address:
ffff888112fc7000: f3 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff888112fc7080: 00 f1 f1 f1 f1 00 00 00 00 00 00 00 00 00 00 00
>ffff888112fc7100: 00 00 00 f2 f2 f2 f2 f2 f2 00 00 00 00 00 00 00
^
ffff888112fc7180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
ffff888112fc7200: 00 00 00 00 00 00 f2 f2 f2 00 00 00 00 00 00 00
for IPv4 packets, ovs_fragment() uses a temporary struct dst_entry. Then,
in the following call graph:
ip_do_fragment()
ip_skb_dst_mtu()
ip_dst_mtu_maybe_forward()
ip_mtu_locked()
the pointer to struct dst_entry is used as pointer to struct rtable: this
turns the access to struct members like rt_mtu_locked into an OOB read in
the stack. Fix this changing the temporary variable used for IPv4 packets
in ovs_fragment(), similarly to what is done for IPv6 few lines below.
References
| URL | Tags | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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CVE-2024-35861 (GCVE-0-2024-35861)
Vulnerability from cvelistv5
Published
2024-05-19 08:34
Modified
2026-08-05 11:30
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix potential UAF in cifs_signal_cifsd_for_reconnect()
Skip sessions that are being teared down (status == SES_EXITING) to
avoid UAF.
References
| URL | Tags | |
|---|---|---|
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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CVE-2024-36964 (GCVE-0-2024-36964)
Vulnerability from cvelistv5
Published
2024-06-03 07:50
Modified
2026-08-05 11:32
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
fs/9p: only translate RWX permissions for plain 9P2000
Garbage in plain 9P2000's perm bits is allowed through, which causes it
to be able to set (among others) the suid bit. This was presumably not
the intent since the unix extended bits are handled explicitly and
conditionally on .u.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 45089142b1497dab2327d60f6c71c40766fc3ea4 Version: 45089142b1497dab2327d60f6c71c40766fc3ea4 Version: 45089142b1497dab2327d60f6c71c40766fc3ea4 Version: 45089142b1497dab2327d60f6c71c40766fc3ea4 Version: 45089142b1497dab2327d60f6c71c40766fc3ea4 Version: 45089142b1497dab2327d60f6c71c40766fc3ea4 Version: 45089142b1497dab2327d60f6c71c40766fc3ea4 Version: 45089142b1497dab2327d60f6c71c40766fc3ea4 Version: 29a3e8657d2a2640384166e3fe29a086d235fc33 Version: 3.0.5 ≤ |
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CVE-2024-26585 (GCVE-0-2024-26585)
Vulnerability from cvelistv5
Published
2024-02-21 14:59
Modified
2026-08-05 11:26
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
tls: fix race between tx work scheduling and socket close
Similarly to previous commit, the submitting thread (recvmsg/sendmsg)
may exit as soon as the async crypto handler calls complete().
Reorder scheduling the work before calling complete().
This seems more logical in the first place, as it's
the inverse order of what the submitting thread will do.
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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CVE-2024-26852 (GCVE-0-2024-26852)
Vulnerability from cvelistv5
Published
2024-04-17 10:17
Modified
2026-08-05 11:27
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/ipv6: avoid possible UAF in ip6_route_mpath_notify()
syzbot found another use-after-free in ip6_route_mpath_notify() [1]
Commit f7225172f25a ("net/ipv6: prevent use after free in
ip6_route_mpath_notify") was not able to fix the root cause.
We need to defer the fib6_info_release() calls after
ip6_route_mpath_notify(), in the cleanup phase.
[1]
BUG: KASAN: slab-use-after-free in rt6_fill_node+0x1460/0x1ac0
Read of size 4 at addr ffff88809a07fc64 by task syz-executor.2/23037
CPU: 0 PID: 23037 Comm: syz-executor.2 Not tainted 6.8.0-rc4-syzkaller-01035-gea7f3cfaa588 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:377 [inline]
print_report+0x167/0x540 mm/kasan/report.c:488
kasan_report+0x142/0x180 mm/kasan/report.c:601
rt6_fill_node+0x1460/0x1ac0
inet6_rt_notify+0x13b/0x290 net/ipv6/route.c:6184
ip6_route_mpath_notify net/ipv6/route.c:5198 [inline]
ip6_route_multipath_add net/ipv6/route.c:5404 [inline]
inet6_rtm_newroute+0x1d0f/0x2300 net/ipv6/route.c:5517
rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543
netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367
netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
____sys_sendmsg+0x525/0x7d0 net/socket.c:2584
___sys_sendmsg net/socket.c:2638 [inline]
__sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f73dd87dda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f73de6550c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f73dd9ac050 RCX: 00007f73dd87dda9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000005
RBP: 00007f73dd8ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f73dd9ac050 R15: 00007ffdbdeb7858
</TASK>
Allocated by task 23037:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:372 [inline]
__kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:389
kasan_kmalloc include/linux/kasan.h:211 [inline]
__do_kmalloc_node mm/slub.c:3981 [inline]
__kmalloc+0x22e/0x490 mm/slub.c:3994
kmalloc include/linux/slab.h:594 [inline]
kzalloc include/linux/slab.h:711 [inline]
fib6_info_alloc+0x2e/0xf0 net/ipv6/ip6_fib.c:155
ip6_route_info_create+0x445/0x12b0 net/ipv6/route.c:3758
ip6_route_multipath_add net/ipv6/route.c:5298 [inline]
inet6_rtm_newroute+0x744/0x2300 net/ipv6/route.c:5517
rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543
netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367
netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
____sys_sendmsg+0x525/0x7d0 net/socket.c:2584
___sys_sendmsg net/socket.c:2638 [inline]
__sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
Freed by task 16:
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
kasan_save_free_info+0x4e/0x60 mm/kasan/generic.c:640
poison_slab_object+0xa6/0xe0 m
---truncated---
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 3b1137fe74829e021f483756a648cbb87c8a1b4a Version: 3b1137fe74829e021f483756a648cbb87c8a1b4a Version: 3b1137fe74829e021f483756a648cbb87c8a1b4a Version: 3b1137fe74829e021f483756a648cbb87c8a1b4a Version: 3b1137fe74829e021f483756a648cbb87c8a1b4a Version: 3b1137fe74829e021f483756a648cbb87c8a1b4a Version: 3b1137fe74829e021f483756a648cbb87c8a1b4a Version: 3b1137fe74829e021f483756a648cbb87c8a1b4a |
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],
"negate": false,
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}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/ipv6: avoid possible UAF in ip6_route_mpath_notify()\n\nsyzbot found another use-after-free in ip6_route_mpath_notify() [1]\n\nCommit f7225172f25a (\"net/ipv6: prevent use after free in\nip6_route_mpath_notify\") was not able to fix the root cause.\n\nWe need to defer the fib6_info_release() calls after\nip6_route_mpath_notify(), in the cleanup phase.\n\n[1]\nBUG: KASAN: slab-use-after-free in rt6_fill_node+0x1460/0x1ac0\nRead of size 4 at addr ffff88809a07fc64 by task syz-executor.2/23037\n\nCPU: 0 PID: 23037 Comm: syz-executor.2 Not tainted 6.8.0-rc4-syzkaller-01035-gea7f3cfaa588 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106\n print_address_description mm/kasan/report.c:377 [inline]\n print_report+0x167/0x540 mm/kasan/report.c:488\n kasan_report+0x142/0x180 mm/kasan/report.c:601\n rt6_fill_node+0x1460/0x1ac0\n inet6_rt_notify+0x13b/0x290 net/ipv6/route.c:6184\n ip6_route_mpath_notify net/ipv6/route.c:5198 [inline]\n ip6_route_multipath_add net/ipv6/route.c:5404 [inline]\n inet6_rtm_newroute+0x1d0f/0x2300 net/ipv6/route.c:5517\n rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597\n netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543\n netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]\n netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367\n netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg+0x221/0x270 net/socket.c:745\n ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584\n ___sys_sendmsg net/socket.c:2638 [inline]\n __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667\n do_syscall_64+0xf9/0x240\n entry_SYSCALL_64_after_hwframe+0x6f/0x77\nRIP: 0033:0x7f73dd87dda9\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007f73de6550c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e\nRAX: ffffffffffffffda RBX: 00007f73dd9ac050 RCX: 00007f73dd87dda9\nRDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000005\nRBP: 00007f73dd8ca47a R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 000000000000006e R14: 00007f73dd9ac050 R15: 00007ffdbdeb7858\n \u003c/TASK\u003e\n\nAllocated by task 23037:\n kasan_save_stack mm/kasan/common.c:47 [inline]\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\n poison_kmalloc_redzone mm/kasan/common.c:372 [inline]\n __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:389\n kasan_kmalloc include/linux/kasan.h:211 [inline]\n __do_kmalloc_node mm/slub.c:3981 [inline]\n __kmalloc+0x22e/0x490 mm/slub.c:3994\n kmalloc include/linux/slab.h:594 [inline]\n kzalloc include/linux/slab.h:711 [inline]\n fib6_info_alloc+0x2e/0xf0 net/ipv6/ip6_fib.c:155\n ip6_route_info_create+0x445/0x12b0 net/ipv6/route.c:3758\n ip6_route_multipath_add net/ipv6/route.c:5298 [inline]\n inet6_rtm_newroute+0x744/0x2300 net/ipv6/route.c:5517\n rtnetlink_rcv_msg+0x885/0x1040 net/core/rtnetlink.c:6597\n netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543\n netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]\n netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367\n netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg+0x221/0x270 net/socket.c:745\n ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584\n ___sys_sendmsg net/socket.c:2638 [inline]\n __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667\n do_syscall_64+0xf9/0x240\n entry_SYSCALL_64_after_hwframe+0x6f/0x77\n\nFreed by task 16:\n kasan_save_stack mm/kasan/common.c:47 [inline]\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\n kasan_save_free_info+0x4e/0x60 mm/kasan/generic.c:640\n poison_slab_object+0xa6/0xe0 m\n---truncated---"
}
],
"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 vulnerability is triggered by an RTM_NEWROUTE message sent over an AF_NETLINK/NETLINK_ROUTE socket via sendmsg(), which requires local access to the system. There is no remote packet-processing path into ip6_route_multipath_add().\nAC:L - The attacker creates both sides of the condition: they drop the last reference themselves and can widen the window arbitrarily by supplying many nexthops, by setting RTA_EXPIRES=0 so the non-rtnl gc softirq reaps the route, and by lowering net.ipv6.route.gc_interval inside their own netns, with unlimited retries. syzbot reproduced it, confirming reliable triggerability.\nPR:L - rtnetlink_rcv_msg() only requires netlink_net_capable(skb, CAP_NET_ADMIN), which is evaluated against the network namespace\u0027s user namespace, so any unprivileged local user obtains it with `unshare -Urn`. Multipath ECMP routes are addable in that namespace using RTNH_F_ONLINK gateways, which bypasses gateway reachability validation.\nUI:N - The entire sequence is performed by the attacker\u0027s own process in a single netlink transaction; no victim action, mount, or other interaction is needed.\nS:U - The use-after-free corrupts kernel heap memory and is exploited within the same kernel security authority; no VM, IOMMU, or hypervisor boundary is crossed.\nC:H - rt6_fill_node() reads the freed kmalloc-512 fib6_info and copies its contents into an RTM_NEWROUTE netlink message returned to the attacker\u0027s socket, including dereferencing pointers taken from freed memory such as rt-\u003efib6_metrics (passed to rtnetlink_put_metrics()), rt-\u003efib6_table, and rt-\u003efib6_nh. Reclaiming the freed slot with controlled data turns this into an arbitrary kernel-memory read leaked directly to userspace.\nI:H - This is a use-after-free on a 512-byte kmalloc object that an unprivileged attacker can spray and reclaim, after which the kernel dereferences attacker-controlled pointers and performs a list_for_each_entry_safe() walk over the freed fib6_siblings list head. That yields controlled pointer traversal and corruption suitable for privilege escalation.\nA:H - The KASAN slab-use-after-free in rt6_fill_node() causes an oops/panic when the freed object is unmapped, poisoned, or reclaimed with invalid pointers, and it can be triggered repeatedly to reliably crash the kernel."
}
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{
"url": "https://git.kernel.org/stable/c/664f9c647260cc9d68b4e31d9899530d89dd045e"
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{
"url": "https://git.kernel.org/stable/c/79ce2e54cc0ae366f45516c00bf1b19aa43e9abe"
},
{
"url": "https://git.kernel.org/stable/c/cae3303257950d03ffec2df4a45e836f10d26c24"
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{
"url": "https://git.kernel.org/stable/c/394334fe2ae3b9f1e2332b873857e84cb28aac18"
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{
"url": "https://git.kernel.org/stable/c/ed883060c38721ed828061f6c0c30e5147326c9a"
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{
"url": "https://git.kernel.org/stable/c/61b34f73cdbdb8eaf9ea12e9e2eb3b29716c4dda"
},
{
"url": "https://git.kernel.org/stable/c/685f7d531264599b3f167f1e94bbd22f120e5fab"
}
],
"title": "net/ipv6: avoid possible UAF in ip6_route_mpath_notify()",
"x_generator": {
"engine": "bippy-1.2.0"
}
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"cveMetadata": {
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"assignerShortName": "Linux",
"cveId": "CVE-2024-26852",
"datePublished": "2024-04-17T10:17:15.923Z",
"dateReserved": "2024-02-19T14:20:24.183Z",
"dateUpdated": "2026-08-05T11:27:48.147Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2021-47402 (GCVE-0-2021-47402)
Vulnerability from cvelistv5
Published
2024-05-21 15:03
Modified
2026-08-05 08:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: sched: flower: protect fl_walk() with rcu
Patch that refactored fl_walk() to use idr_for_each_entry_continue_ul()
also removed rcu protection of individual filters which causes following
use-after-free when filter is deleted concurrently. Fix fl_walk() to obtain
rcu read lock while iterating and taking the filter reference and temporary
release the lock while calling arg->fn() callback that can sleep.
KASAN trace:
[ 352.773640] ==================================================================
[ 352.775041] BUG: KASAN: use-after-free in fl_walk+0x159/0x240 [cls_flower]
[ 352.776304] Read of size 4 at addr ffff8881c8251480 by task tc/2987
[ 352.777862] CPU: 3 PID: 2987 Comm: tc Not tainted 5.15.0-rc2+ #2
[ 352.778980] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
[ 352.781022] Call Trace:
[ 352.781573] dump_stack_lvl+0x46/0x5a
[ 352.782332] print_address_description.constprop.0+0x1f/0x140
[ 352.783400] ? fl_walk+0x159/0x240 [cls_flower]
[ 352.784292] ? fl_walk+0x159/0x240 [cls_flower]
[ 352.785138] kasan_report.cold+0x83/0xdf
[ 352.785851] ? fl_walk+0x159/0x240 [cls_flower]
[ 352.786587] kasan_check_range+0x145/0x1a0
[ 352.787337] fl_walk+0x159/0x240 [cls_flower]
[ 352.788163] ? fl_put+0x10/0x10 [cls_flower]
[ 352.789007] ? __mutex_unlock_slowpath.constprop.0+0x220/0x220
[ 352.790102] tcf_chain_dump+0x231/0x450
[ 352.790878] ? tcf_chain_tp_delete_empty+0x170/0x170
[ 352.791833] ? __might_sleep+0x2e/0xc0
[ 352.792594] ? tfilter_notify+0x170/0x170
[ 352.793400] ? __mutex_unlock_slowpath.constprop.0+0x220/0x220
[ 352.794477] tc_dump_tfilter+0x385/0x4b0
[ 352.795262] ? tc_new_tfilter+0x1180/0x1180
[ 352.796103] ? __mod_node_page_state+0x1f/0xc0
[ 352.796974] ? __build_skb_around+0x10e/0x130
[ 352.797826] netlink_dump+0x2c0/0x560
[ 352.798563] ? netlink_getsockopt+0x430/0x430
[ 352.799433] ? __mutex_unlock_slowpath.constprop.0+0x220/0x220
[ 352.800542] __netlink_dump_start+0x356/0x440
[ 352.801397] rtnetlink_rcv_msg+0x3ff/0x550
[ 352.802190] ? tc_new_tfilter+0x1180/0x1180
[ 352.802872] ? rtnl_calcit.isra.0+0x1f0/0x1f0
[ 352.803668] ? tc_new_tfilter+0x1180/0x1180
[ 352.804344] ? _copy_from_iter_nocache+0x800/0x800
[ 352.805202] ? kasan_set_track+0x1c/0x30
[ 352.805900] netlink_rcv_skb+0xc6/0x1f0
[ 352.806587] ? rht_deferred_worker+0x6b0/0x6b0
[ 352.807455] ? rtnl_calcit.isra.0+0x1f0/0x1f0
[ 352.808324] ? netlink_ack+0x4d0/0x4d0
[ 352.809086] ? netlink_deliver_tap+0x62/0x3d0
[ 352.809951] netlink_unicast+0x353/0x480
[ 352.810744] ? netlink_attachskb+0x430/0x430
[ 352.811586] ? __alloc_skb+0xd7/0x200
[ 352.812349] netlink_sendmsg+0x396/0x680
[ 352.813132] ? netlink_unicast+0x480/0x480
[ 352.813952] ? __import_iovec+0x192/0x210
[ 352.814759] ? netlink_unicast+0x480/0x480
[ 352.815580] sock_sendmsg+0x6c/0x80
[ 352.816299] ____sys_sendmsg+0x3a5/0x3c0
[ 352.817096] ? kernel_sendmsg+0x30/0x30
[ 352.817873] ? __ia32_sys_recvmmsg+0x150/0x150
[ 352.818753] ___sys_sendmsg+0xd8/0x140
[ 352.819518] ? sendmsg_copy_msghdr+0x110/0x110
[ 352.820402] ? ___sys_recvmsg+0xf4/0x1a0
[ 352.821110] ? __copy_msghdr_from_user+0x260/0x260
[ 352.821934] ? _raw_spin_lock+0x81/0xd0
[ 352.822680] ? __handle_mm_fault+0xef3/0x1b20
[ 352.823549] ? rb_insert_color+0x2a/0x270
[ 352.824373] ? copy_page_range+0x16b0/0x16b0
[ 352.825209] ? perf_event_update_userpage+0x2d0/0x2d0
[ 352.826190] ? __fget_light+0xd9/0xf0
[ 352.826941] __sys_sendmsg+0xb3/0x130
[ 352.827613] ? __sys_sendmsg_sock+0x20/0x20
[ 352.828377] ? do_user_addr_fault+0x2c5/0x8a0
[ 352.829184] ? fpregs_assert_state_consistent+0x52/0x60
[ 352.830001] ? exit_to_user_mode_prepare+0x32/0x160
[ 352.830845] do_syscall_64+0x35/0x80
[ 352.831445] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 352.832331] RIP: 0033:0x7f7bee973c17
[
---truncated---
References
| URL | Tags | |
|---|---|---|
Impacted products
{
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"content": {
"id": "CVE-2021-47402",
"options": [
{
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{
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},
{
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],
"role": "CISA Coordinator",
"timestamp": "2024-09-10T15:38:07.154281Z",
"version": "2.0.3"
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"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
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{
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"product": "Linux",
"programFiles": [
"net/sched/cls_flower.c"
],
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"vendor": "Linux",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sched: flower: protect fl_walk() with rcu\n\nPatch that refactored fl_walk() to use idr_for_each_entry_continue_ul()\nalso removed rcu protection of individual filters which causes following\nuse-after-free when filter is deleted concurrently. Fix fl_walk() to obtain\nrcu read lock while iterating and taking the filter reference and temporary\nrelease the lock while calling arg-\u003efn() callback that can sleep.\n\nKASAN trace:\n\n[ 352.773640] ==================================================================\n[ 352.775041] BUG: KASAN: use-after-free in fl_walk+0x159/0x240 [cls_flower]\n[ 352.776304] Read of size 4 at addr ffff8881c8251480 by task tc/2987\n\n[ 352.777862] CPU: 3 PID: 2987 Comm: tc Not tainted 5.15.0-rc2+ #2\n[ 352.778980] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n[ 352.781022] Call Trace:\n[ 352.781573] dump_stack_lvl+0x46/0x5a\n[ 352.782332] print_address_description.constprop.0+0x1f/0x140\n[ 352.783400] ? fl_walk+0x159/0x240 [cls_flower]\n[ 352.784292] ? fl_walk+0x159/0x240 [cls_flower]\n[ 352.785138] kasan_report.cold+0x83/0xdf\n[ 352.785851] ? fl_walk+0x159/0x240 [cls_flower]\n[ 352.786587] kasan_check_range+0x145/0x1a0\n[ 352.787337] fl_walk+0x159/0x240 [cls_flower]\n[ 352.788163] ? fl_put+0x10/0x10 [cls_flower]\n[ 352.789007] ? __mutex_unlock_slowpath.constprop.0+0x220/0x220\n[ 352.790102] tcf_chain_dump+0x231/0x450\n[ 352.790878] ? tcf_chain_tp_delete_empty+0x170/0x170\n[ 352.791833] ? __might_sleep+0x2e/0xc0\n[ 352.792594] ? tfilter_notify+0x170/0x170\n[ 352.793400] ? __mutex_unlock_slowpath.constprop.0+0x220/0x220\n[ 352.794477] tc_dump_tfilter+0x385/0x4b0\n[ 352.795262] ? tc_new_tfilter+0x1180/0x1180\n[ 352.796103] ? __mod_node_page_state+0x1f/0xc0\n[ 352.796974] ? __build_skb_around+0x10e/0x130\n[ 352.797826] netlink_dump+0x2c0/0x560\n[ 352.798563] ? netlink_getsockopt+0x430/0x430\n[ 352.799433] ? __mutex_unlock_slowpath.constprop.0+0x220/0x220\n[ 352.800542] __netlink_dump_start+0x356/0x440\n[ 352.801397] rtnetlink_rcv_msg+0x3ff/0x550\n[ 352.802190] ? tc_new_tfilter+0x1180/0x1180\n[ 352.802872] ? rtnl_calcit.isra.0+0x1f0/0x1f0\n[ 352.803668] ? tc_new_tfilter+0x1180/0x1180\n[ 352.804344] ? _copy_from_iter_nocache+0x800/0x800\n[ 352.805202] ? kasan_set_track+0x1c/0x30\n[ 352.805900] netlink_rcv_skb+0xc6/0x1f0\n[ 352.806587] ? rht_deferred_worker+0x6b0/0x6b0\n[ 352.807455] ? rtnl_calcit.isra.0+0x1f0/0x1f0\n[ 352.808324] ? netlink_ack+0x4d0/0x4d0\n[ 352.809086] ? netlink_deliver_tap+0x62/0x3d0\n[ 352.809951] netlink_unicast+0x353/0x480\n[ 352.810744] ? netlink_attachskb+0x430/0x430\n[ 352.811586] ? __alloc_skb+0xd7/0x200\n[ 352.812349] netlink_sendmsg+0x396/0x680\n[ 352.813132] ? netlink_unicast+0x480/0x480\n[ 352.813952] ? __import_iovec+0x192/0x210\n[ 352.814759] ? netlink_unicast+0x480/0x480\n[ 352.815580] sock_sendmsg+0x6c/0x80\n[ 352.816299] ____sys_sendmsg+0x3a5/0x3c0\n[ 352.817096] ? kernel_sendmsg+0x30/0x30\n[ 352.817873] ? __ia32_sys_recvmmsg+0x150/0x150\n[ 352.818753] ___sys_sendmsg+0xd8/0x140\n[ 352.819518] ? sendmsg_copy_msghdr+0x110/0x110\n[ 352.820402] ? ___sys_recvmsg+0xf4/0x1a0\n[ 352.821110] ? __copy_msghdr_from_user+0x260/0x260\n[ 352.821934] ? _raw_spin_lock+0x81/0xd0\n[ 352.822680] ? __handle_mm_fault+0xef3/0x1b20\n[ 352.823549] ? rb_insert_color+0x2a/0x270\n[ 352.824373] ? copy_page_range+0x16b0/0x16b0\n[ 352.825209] ? perf_event_update_userpage+0x2d0/0x2d0\n[ 352.826190] ? __fget_light+0xd9/0xf0\n[ 352.826941] __sys_sendmsg+0xb3/0x130\n[ 352.827613] ? __sys_sendmsg_sock+0x20/0x20\n[ 352.828377] ? do_user_addr_fault+0x2c5/0x8a0\n[ 352.829184] ? fpregs_assert_state_consistent+0x52/0x60\n[ 352.830001] ? exit_to_user_mode_prepare+0x32/0x160\n[ 352.830845] do_syscall_64+0x35/0x80\n[ 352.831445] entry_SYSCALL_64_after_hwframe+0x44/0xae\n[ 352.832331] RIP: 0033:0x7f7bee973c17\n[ \n---truncated---"
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CVE-2024-41059 (GCVE-0-2024-41059)
Vulnerability from cvelistv5
Published
2024-07-29 14:57
Modified
2026-08-05 11:35
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
hfsplus: fix uninit-value in copy_name
[syzbot reported]
BUG: KMSAN: uninit-value in sized_strscpy+0xc4/0x160
sized_strscpy+0xc4/0x160
copy_name+0x2af/0x320 fs/hfsplus/xattr.c:411
hfsplus_listxattr+0x11e9/0x1a50 fs/hfsplus/xattr.c:750
vfs_listxattr fs/xattr.c:493 [inline]
listxattr+0x1f3/0x6b0 fs/xattr.c:840
path_listxattr fs/xattr.c:864 [inline]
__do_sys_listxattr fs/xattr.c:876 [inline]
__se_sys_listxattr fs/xattr.c:873 [inline]
__x64_sys_listxattr+0x16b/0x2f0 fs/xattr.c:873
x64_sys_call+0x2ba0/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:195
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Uninit was created at:
slab_post_alloc_hook mm/slub.c:3877 [inline]
slab_alloc_node mm/slub.c:3918 [inline]
kmalloc_trace+0x57b/0xbe0 mm/slub.c:4065
kmalloc include/linux/slab.h:628 [inline]
hfsplus_listxattr+0x4cc/0x1a50 fs/hfsplus/xattr.c:699
vfs_listxattr fs/xattr.c:493 [inline]
listxattr+0x1f3/0x6b0 fs/xattr.c:840
path_listxattr fs/xattr.c:864 [inline]
__do_sys_listxattr fs/xattr.c:876 [inline]
__se_sys_listxattr fs/xattr.c:873 [inline]
__x64_sys_listxattr+0x16b/0x2f0 fs/xattr.c:873
x64_sys_call+0x2ba0/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:195
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
[Fix]
When allocating memory to strbuf, initialize memory to 0.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 017f8da43e92ddd9989884720b694a512e09ccce Version: 017f8da43e92ddd9989884720b694a512e09ccce Version: 017f8da43e92ddd9989884720b694a512e09ccce Version: 017f8da43e92ddd9989884720b694a512e09ccce Version: 017f8da43e92ddd9989884720b694a512e09ccce Version: 017f8da43e92ddd9989884720b694a512e09ccce Version: 017f8da43e92ddd9989884720b694a512e09ccce Version: 017f8da43e92ddd9989884720b694a512e09ccce |
||
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CVE-2024-35817 (GCVE-0-2024-35817)
Vulnerability from cvelistv5
Published
2024-05-17 13:23
Modified
2026-08-05 11:30
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: amdgpu_ttm_gart_bind set gtt bound flag
Otherwise after the GTT bo is released, the GTT and gart space is freed
but amdgpu_ttm_backend_unbind will not clear the gart page table entry
and leave valid mapping entry pointing to the stale system page. Then
if GPU access the gart address mistakely, it will read undefined value
instead page fault, harder to debug and reproduce the real issue.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 0b988ca1c7c4c73983b4ea96ef7c2af2263c87eb Version: 0b988ca1c7c4c73983b4ea96ef7c2af2263c87eb Version: 0b988ca1c7c4c73983b4ea96ef7c2af2263c87eb Version: 0b988ca1c7c4c73983b4ea96ef7c2af2263c87eb Version: 0b988ca1c7c4c73983b4ea96ef7c2af2263c87eb Version: 0b988ca1c7c4c73983b4ea96ef7c2af2263c87eb |
||
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CVE-2024-36899 (GCVE-0-2024-36899)
Vulnerability from cvelistv5
Published
2024-05-30 15:29
Modified
2026-05-12 11:53
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
gpiolib: cdev: Fix use after free in lineinfo_changed_notify
The use-after-free issue occurs as follows: when the GPIO chip device file
is being closed by invoking gpio_chrdev_release(), watched_lines is freed
by bitmap_free(), but the unregistration of lineinfo_changed_nb notifier
chain failed due to waiting write rwsem. Additionally, one of the GPIO
chip's lines is also in the release process and holds the notifier chain's
read rwsem. Consequently, a race condition leads to the use-after-free of
watched_lines.
Here is the typical stack when issue happened:
[free]
gpio_chrdev_release()
--> bitmap_free(cdev->watched_lines) <-- freed
--> blocking_notifier_chain_unregister()
--> down_write(&nh->rwsem) <-- waiting rwsem
--> __down_write_common()
--> rwsem_down_write_slowpath()
--> schedule_preempt_disabled()
--> schedule()
[use]
st54spi_gpio_dev_release()
--> gpio_free()
--> gpiod_free()
--> gpiod_free_commit()
--> gpiod_line_state_notify()
--> blocking_notifier_call_chain()
--> down_read(&nh->rwsem); <-- held rwsem
--> notifier_call_chain()
--> lineinfo_changed_notify()
--> test_bit(xxxx, cdev->watched_lines) <-- use after free
The side effect of the use-after-free issue is that a GPIO line event is
being generated for userspace where it shouldn't. However, since the chrdev
is being closed, userspace won't have the chance to read that event anyway.
To fix the issue, call the bitmap_free() function after the unregistration
of lineinfo_changed_nb notifier chain.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 51c1064e82e77b39a49889287ca50709303e2f26 Version: 51c1064e82e77b39a49889287ca50709303e2f26 Version: 51c1064e82e77b39a49889287ca50709303e2f26 Version: 51c1064e82e77b39a49889287ca50709303e2f26 Version: 51c1064e82e77b39a49889287ca50709303e2f26 Version: 51c1064e82e77b39a49889287ca50709303e2f26 |
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpiolib: cdev: Fix use after free in lineinfo_changed_notify\n\nThe use-after-free issue occurs as follows: when the GPIO chip device file\nis being closed by invoking gpio_chrdev_release(), watched_lines is freed\nby bitmap_free(), but the unregistration of lineinfo_changed_nb notifier\nchain failed due to waiting write rwsem. Additionally, one of the GPIO\nchip\u0027s lines is also in the release process and holds the notifier chain\u0027s\nread rwsem. Consequently, a race condition leads to the use-after-free of\nwatched_lines.\n\nHere is the typical stack when issue happened:\n\n[free]\ngpio_chrdev_release()\n --\u003e bitmap_free(cdev-\u003ewatched_lines) \u003c-- freed\n --\u003e blocking_notifier_chain_unregister()\n --\u003e down_write(\u0026nh-\u003erwsem) \u003c-- waiting rwsem\n --\u003e __down_write_common()\n --\u003e rwsem_down_write_slowpath()\n --\u003e schedule_preempt_disabled()\n --\u003e schedule()\n\n[use]\nst54spi_gpio_dev_release()\n --\u003e gpio_free()\n --\u003e gpiod_free()\n --\u003e gpiod_free_commit()\n --\u003e gpiod_line_state_notify()\n --\u003e blocking_notifier_call_chain()\n --\u003e down_read(\u0026nh-\u003erwsem); \u003c-- held rwsem\n --\u003e notifier_call_chain()\n --\u003e lineinfo_changed_notify()\n --\u003e test_bit(xxxx, cdev-\u003ewatched_lines) \u003c-- use after free\n\nThe side effect of the use-after-free issue is that a GPIO line event is\nbeing generated for userspace where it shouldn\u0027t. However, since the chrdev\nis being closed, userspace won\u0027t have the chance to read that event anyway.\n\nTo fix the issue, call the bitmap_free() function after the unregistration\nof lineinfo_changed_nb notifier chain."
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CVE-2022-48651 (GCVE-0-2022-48651)
Vulnerability from cvelistv5
Published
2024-04-28 13:00
Modified
2026-05-11 18:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipvlan: Fix out-of-bound bugs caused by unset skb->mac_header
If an AF_PACKET socket is used to send packets through ipvlan and the
default xmit function of the AF_PACKET socket is changed from
dev_queue_xmit() to packet_direct_xmit() via setsockopt() with the option
name of PACKET_QDISC_BYPASS, the skb->mac_header may not be reset and
remains as the initial value of 65535, this may trigger slab-out-of-bounds
bugs as following:
=================================================================
UG: KASAN: slab-out-of-bounds in ipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan]
PU: 2 PID: 1768 Comm: raw_send Kdump: loaded Not tainted 6.0.0-rc4+ #6
ardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33
all Trace:
print_address_description.constprop.0+0x1d/0x160
print_report.cold+0x4f/0x112
kasan_report+0xa3/0x130
ipvlan_xmit_mode_l2+0xdb/0x330 [ipvlan]
ipvlan_start_xmit+0x29/0xa0 [ipvlan]
__dev_direct_xmit+0x2e2/0x380
packet_direct_xmit+0x22/0x60
packet_snd+0x7c9/0xc40
sock_sendmsg+0x9a/0xa0
__sys_sendto+0x18a/0x230
__x64_sys_sendto+0x74/0x90
do_syscall_64+0x3b/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
The root cause is:
1. packet_snd() only reset skb->mac_header when sock->type is SOCK_RAW
and skb->protocol is not specified as in packet_parse_headers()
2. packet_direct_xmit() doesn't reset skb->mac_header as dev_queue_xmit()
In this case, skb->mac_header is 65535 when ipvlan_xmit_mode_l2() is
called. So when ipvlan_xmit_mode_l2() gets mac header with eth_hdr() which
use "skb->head + skb->mac_header", out-of-bound access occurs.
This patch replaces eth_hdr() with skb_eth_hdr() in ipvlan_xmit_mode_l2()
and reset mac header in multicast to solve this out-of-bound bug.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 2ad7bf3638411cb547f2823df08166c13ab04269 Version: 2ad7bf3638411cb547f2823df08166c13ab04269 Version: 2ad7bf3638411cb547f2823df08166c13ab04269 Version: 2ad7bf3638411cb547f2823df08166c13ab04269 Version: 2ad7bf3638411cb547f2823df08166c13ab04269 Version: 2ad7bf3638411cb547f2823df08166c13ab04269 Version: 2ad7bf3638411cb547f2823df08166c13ab04269 Version: 2ad7bf3638411cb547f2823df08166c13ab04269 |
||
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CVE-2023-52846 (GCVE-0-2023-52846)
Vulnerability from cvelistv5
Published
2024-05-21 15:31
Modified
2026-08-05 09:11
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
hsr: Prevent use after free in prp_create_tagged_frame()
The prp_fill_rct() function can fail. In that situation, it frees the
skb and returns NULL. Meanwhile on the success path, it returns the
original skb. So it's straight forward to fix bug by using the returned
value.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 451d8123f89791bb628277c0bdb4cae34a3563e6 Version: 451d8123f89791bb628277c0bdb4cae34a3563e6 Version: 451d8123f89791bb628277c0bdb4cae34a3563e6 Version: 451d8123f89791bb628277c0bdb4cae34a3563e6 Version: 451d8123f89791bb628277c0bdb4cae34a3563e6 Version: 451d8123f89791bb628277c0bdb4cae34a3563e6 |
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CVE-2024-26828 (GCVE-0-2024-26828)
Vulnerability from cvelistv5
Published
2024-04-17 09:43
Modified
2026-08-05 11:27
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
cifs: fix underflow in parse_server_interfaces()
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Impacted products
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CVE-2023-52340 (GCVE-0-2023-52340)
Vulnerability from cvelistv5
Published
2024-07-05 00:00
Modified
2025-11-04 17:14
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- n/a
Summary
The IPv6 implementation in the Linux kernel before 6.3 has a net/ipv6/route.c max_size threshold that can be consumed easily, e.g., leading to a denial of service (network is unreachable errors) when IPv6 packets are sent in a loop via a raw socket.
References
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CVE-2024-38538 (GCVE-0-2024-38538)
Vulnerability from cvelistv5
Published
2024-06-19 13:35
Modified
2026-08-05 11:32
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: bridge: xmit: make sure we have at least eth header len bytes
syzbot triggered an uninit value[1] error in bridge device's xmit path
by sending a short (less than ETH_HLEN bytes) skb. To fix it check if
we can actually pull that amount instead of assuming.
Tested with dropwatch:
drop at: br_dev_xmit+0xb93/0x12d0 [bridge] (0xffffffffc06739b3)
origin: software
timestamp: Mon May 13 11:31:53 2024 778214037 nsec
protocol: 0x88a8
length: 2
original length: 2
drop reason: PKT_TOO_SMALL
[1]
BUG: KMSAN: uninit-value in br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65
br_dev_xmit+0x61d/0x1cb0 net/bridge/br_device.c:65
__netdev_start_xmit include/linux/netdevice.h:4903 [inline]
netdev_start_xmit include/linux/netdevice.h:4917 [inline]
xmit_one net/core/dev.c:3531 [inline]
dev_hard_start_xmit+0x247/0xa20 net/core/dev.c:3547
__dev_queue_xmit+0x34db/0x5350 net/core/dev.c:4341
dev_queue_xmit include/linux/netdevice.h:3091 [inline]
__bpf_tx_skb net/core/filter.c:2136 [inline]
__bpf_redirect_common net/core/filter.c:2180 [inline]
__bpf_redirect+0x14a6/0x1620 net/core/filter.c:2187
____bpf_clone_redirect net/core/filter.c:2460 [inline]
bpf_clone_redirect+0x328/0x470 net/core/filter.c:2432
___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:1997
__bpf_prog_run512+0xb5/0xe0 kernel/bpf/core.c:2238
bpf_dispatcher_nop_func include/linux/bpf.h:1234 [inline]
__bpf_prog_run include/linux/filter.h:657 [inline]
bpf_prog_run include/linux/filter.h:664 [inline]
bpf_test_run+0x499/0xc30 net/bpf/test_run.c:425
bpf_prog_test_run_skb+0x14ea/0x1f20 net/bpf/test_run.c:1058
bpf_prog_test_run+0x6b7/0xad0 kernel/bpf/syscall.c:4269
__sys_bpf+0x6aa/0xd90 kernel/bpf/syscall.c:5678
__do_sys_bpf kernel/bpf/syscall.c:5767 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5765 [inline]
__x64_sys_bpf+0xa0/0xe0 kernel/bpf/syscall.c:5765
x64_sys_call+0x96b/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:322
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
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 Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
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"value": "AV:L - `br_dev_xmit()` is the bridge device\u0027s locally-originated transmit path \u2014 remotely received frames go through `br_handle_frame`/`br_forward` and always carry a full Ethernet header, and IP routing toward a bridge always builds one via `dev_hard_header()`. Triggering it requires local injection of a sub-14-byte skb (tun write or AF_PACKET on a `hard_header_len == 0` device, plus a tc `mirred` redirect).\nAC:L - The attacker fully and deterministically controls the skb length; there is no race, no timing window, and no dependence on memory layout or victim state. Every attempt reaches the uninitialized read and the subsequent `skb_push()` leak.\nPR:L - The setup needs CAP_NET_ADMIN/CAP_NET_RAW only within a network namespace, which any unprivileged user obtains via `unshare -Urn` (create the bridge, create the tun/tunnel device, attach the tc mirred redirect, and capture leaked frames from a veth peer). No real root in the initial namespace is required.\nUI:N - The attacker performs every step \u2014 creating the devices, writing the short frame, and reading the leaked frames back \u2014 with no action by any other user or administrator.\nS:U - The uninitialized read, the malformed skb, and the resulting disclosure all stay within the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - Up to 14 bytes of uninitialized kernel heap (skb headroom and the region past `skb-\u003etail`, which routinely holds freed packet data and kernel values) are read and then, via the unconditional `skb_push(skb, ETH_HLEN)` in `br_dev_queue_push_xmit()`, transmitted verbatim out every bridge port where the attacker captures them. The leak is repeatable at packet rate, yielding an effectively unbounded kernel memory disclosure rather than a bounded few-byte read.\nI:L - There is no out-of-bounds write primitive, but the kernel emits malformed frames whose source/destination MAC addresses are uninitialized memory, and forwarding decisions (broadcast/multicast/unicast, FDB lookup) are made on that garbage \u2014 corrupting local and peer bridge/switch forwarding state in a limited, attacker-influenced way.\nA:H - When the short skb has less than ETH_HLEN of headroom (as in the syzbot BPF-redirect reproducer), `skb_push(skb, ETH_HLEN)` in `br_dev_queue_push_xmit()` drives `skb-\u003edata` below `skb-\u003ehead` and hits `skb_under_panic()` \u2192 `BUG()`, a hard kernel panic. Additionally the resulting skb has `mac_header`/`network_header` desynchronized from `skb-\u003edata`, propagating a malformed skb into the generic xmit path (e.g. the `WARN_ONCE` in `skb_checksum_help()`, fatal under `panic_on_warn`), and the trigger can be repeated indefinitely."
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CVE-2024-35950 (GCVE-0-2024-35950)
Vulnerability from cvelistv5
Published
2024-05-20 09:41
Modified
2026-08-05 11:31
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/client: Fully protect modes[] with dev->mode_config.mutex
The modes[] array contains pointers to modes on the connectors'
mode lists, which are protected by dev->mode_config.mutex.
Thus we need to extend modes[] the same protection or by the
time we use it the elements may already be pointing to
freed/reused memory.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: e13a058310509b22b2b45cbdd82d8797e173c3db Version: e13a058310509b22b2b45cbdd82d8797e173c3db Version: e13a058310509b22b2b45cbdd82d8797e173c3db Version: e13a058310509b22b2b45cbdd82d8797e173c3db Version: e13a058310509b22b2b45cbdd82d8797e173c3db Version: e13a058310509b22b2b45cbdd82d8797e173c3db Version: e13a058310509b22b2b45cbdd82d8797e173c3db |
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CVE-2024-27398 (GCVE-0-2024-27398)
Vulnerability from cvelistv5
Published
2024-05-13 10:22
Modified
2026-08-05 11:29
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: Fix use-after-free bugs caused by sco_sock_timeout
When the sco connection is established and then, the sco socket
is releasing, timeout_work will be scheduled to judge whether
the sco disconnection is timeout. The sock will be deallocated
later, but it is dereferenced again in sco_sock_timeout. As a
result, the use-after-free bugs will happen. The root cause is
shown below:
Cleanup Thread | Worker Thread
sco_sock_release |
sco_sock_close |
__sco_sock_close |
sco_sock_set_timer |
schedule_delayed_work |
sco_sock_kill | (wait a time)
sock_put(sk) //FREE | sco_sock_timeout
| sock_hold(sk) //USE
The KASAN report triggered by POC is shown below:
[ 95.890016] ==================================================================
[ 95.890496] BUG: KASAN: slab-use-after-free in sco_sock_timeout+0x5e/0x1c0
[ 95.890755] Write of size 4 at addr ffff88800c388080 by task kworker/0:0/7
...
[ 95.890755] Workqueue: events sco_sock_timeout
[ 95.890755] Call Trace:
[ 95.890755] <TASK>
[ 95.890755] dump_stack_lvl+0x45/0x110
[ 95.890755] print_address_description+0x78/0x390
[ 95.890755] print_report+0x11b/0x250
[ 95.890755] ? __virt_addr_valid+0xbe/0xf0
[ 95.890755] ? sco_sock_timeout+0x5e/0x1c0
[ 95.890755] kasan_report+0x139/0x170
[ 95.890755] ? update_load_avg+0xe5/0x9f0
[ 95.890755] ? sco_sock_timeout+0x5e/0x1c0
[ 95.890755] kasan_check_range+0x2c3/0x2e0
[ 95.890755] sco_sock_timeout+0x5e/0x1c0
[ 95.890755] process_one_work+0x561/0xc50
[ 95.890755] worker_thread+0xab2/0x13c0
[ 95.890755] ? pr_cont_work+0x490/0x490
[ 95.890755] kthread+0x279/0x300
[ 95.890755] ? pr_cont_work+0x490/0x490
[ 95.890755] ? kthread_blkcg+0xa0/0xa0
[ 95.890755] ret_from_fork+0x34/0x60
[ 95.890755] ? kthread_blkcg+0xa0/0xa0
[ 95.890755] ret_from_fork_asm+0x11/0x20
[ 95.890755] </TASK>
[ 95.890755]
[ 95.890755] Allocated by task 506:
[ 95.890755] kasan_save_track+0x3f/0x70
[ 95.890755] __kasan_kmalloc+0x86/0x90
[ 95.890755] __kmalloc+0x17f/0x360
[ 95.890755] sk_prot_alloc+0xe1/0x1a0
[ 95.890755] sk_alloc+0x31/0x4e0
[ 95.890755] bt_sock_alloc+0x2b/0x2a0
[ 95.890755] sco_sock_create+0xad/0x320
[ 95.890755] bt_sock_create+0x145/0x320
[ 95.890755] __sock_create+0x2e1/0x650
[ 95.890755] __sys_socket+0xd0/0x280
[ 95.890755] __x64_sys_socket+0x75/0x80
[ 95.890755] do_syscall_64+0xc4/0x1b0
[ 95.890755] entry_SYSCALL_64_after_hwframe+0x67/0x6f
[ 95.890755]
[ 95.890755] Freed by task 506:
[ 95.890755] kasan_save_track+0x3f/0x70
[ 95.890755] kasan_save_free_info+0x40/0x50
[ 95.890755] poison_slab_object+0x118/0x180
[ 95.890755] __kasan_slab_free+0x12/0x30
[ 95.890755] kfree+0xb2/0x240
[ 95.890755] __sk_destruct+0x317/0x410
[ 95.890755] sco_sock_release+0x232/0x280
[ 95.890755] sock_close+0xb2/0x210
[ 95.890755] __fput+0x37f/0x770
[ 95.890755] task_work_run+0x1ae/0x210
[ 95.890755] get_signal+0xe17/0xf70
[ 95.890755] arch_do_signal_or_restart+0x3f/0x520
[ 95.890755] syscall_exit_to_user_mode+0x55/0x120
[ 95.890755] do_syscall_64+0xd1/0x1b0
[ 95.890755] entry_SYSCALL_64_after_hwframe+0x67/0x6f
[ 95.890755]
[ 95.890755] The buggy address belongs to the object at ffff88800c388000
[ 95.890755] which belongs to the cache kmalloc-1k of size 1024
[ 95.890755] The buggy address is located 128 bytes inside of
[ 95.890755] freed 1024-byte region [ffff88800c388000, ffff88800c388400)
[ 95.890755]
[ 95.890755] The buggy address belongs to the physical page:
[ 95.890755] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88800c38a800 pfn:0xc388
[ 95.890755] head: order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 95.890755] ano
---truncated---
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 48669c81a65628ef234cbdd91b9395952c7c27fe Version: 37d7ae2b0578f2373674a755402ee722e96edc08 Version: a1073aad497d0d071a71f61b721966a176d50c08 Version: ba316be1b6a00db7126ed9a39f9bee434a508043 Version: ba316be1b6a00db7126ed9a39f9bee434a508043 Version: ba316be1b6a00db7126ed9a39f9bee434a508043 Version: ba316be1b6a00db7126ed9a39f9bee434a508043 Version: ba316be1b6a00db7126ed9a39f9bee434a508043 Version: fea63ccd928c01573306983346588b26cffb5572 Version: ec1f74319bb35c1c90c25014ec0f6ea6c3ca2134 Version: b657bba82ff6a007d84fd076bd73b11131726a2b Version: 4.19.207 ≤ Version: 5.4.148 ≤ Version: 5.10.67 ≤ Version: 4.14.263 ≤ Version: 5.13.19 ≤ Version: 5.14.6 ≤ |
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: Fix use-after-free bugs caused by sco_sock_timeout\n\nWhen the sco connection is established and then, the sco socket\nis releasing, timeout_work will be scheduled to judge whether\nthe sco disconnection is timeout. The sock will be deallocated\nlater, but it is dereferenced again in sco_sock_timeout. As a\nresult, the use-after-free bugs will happen. The root cause is\nshown below:\n\n Cleanup Thread | Worker Thread\nsco_sock_release |\n sco_sock_close |\n __sco_sock_close |\n sco_sock_set_timer |\n schedule_delayed_work |\n sco_sock_kill | (wait a time)\n sock_put(sk) //FREE | sco_sock_timeout\n | sock_hold(sk) //USE\n\nThe KASAN report triggered by POC is shown below:\n\n[ 95.890016] ==================================================================\n[ 95.890496] BUG: KASAN: slab-use-after-free in sco_sock_timeout+0x5e/0x1c0\n[ 95.890755] Write of size 4 at addr ffff88800c388080 by task kworker/0:0/7\n...\n[ 95.890755] Workqueue: events sco_sock_timeout\n[ 95.890755] Call Trace:\n[ 95.890755] \u003cTASK\u003e\n[ 95.890755] dump_stack_lvl+0x45/0x110\n[ 95.890755] print_address_description+0x78/0x390\n[ 95.890755] print_report+0x11b/0x250\n[ 95.890755] ? __virt_addr_valid+0xbe/0xf0\n[ 95.890755] ? sco_sock_timeout+0x5e/0x1c0\n[ 95.890755] kasan_report+0x139/0x170\n[ 95.890755] ? update_load_avg+0xe5/0x9f0\n[ 95.890755] ? sco_sock_timeout+0x5e/0x1c0\n[ 95.890755] kasan_check_range+0x2c3/0x2e0\n[ 95.890755] sco_sock_timeout+0x5e/0x1c0\n[ 95.890755] process_one_work+0x561/0xc50\n[ 95.890755] worker_thread+0xab2/0x13c0\n[ 95.890755] ? pr_cont_work+0x490/0x490\n[ 95.890755] kthread+0x279/0x300\n[ 95.890755] ? pr_cont_work+0x490/0x490\n[ 95.890755] ? kthread_blkcg+0xa0/0xa0\n[ 95.890755] ret_from_fork+0x34/0x60\n[ 95.890755] ? kthread_blkcg+0xa0/0xa0\n[ 95.890755] ret_from_fork_asm+0x11/0x20\n[ 95.890755] \u003c/TASK\u003e\n[ 95.890755]\n[ 95.890755] Allocated by task 506:\n[ 95.890755] kasan_save_track+0x3f/0x70\n[ 95.890755] __kasan_kmalloc+0x86/0x90\n[ 95.890755] __kmalloc+0x17f/0x360\n[ 95.890755] sk_prot_alloc+0xe1/0x1a0\n[ 95.890755] sk_alloc+0x31/0x4e0\n[ 95.890755] bt_sock_alloc+0x2b/0x2a0\n[ 95.890755] sco_sock_create+0xad/0x320\n[ 95.890755] bt_sock_create+0x145/0x320\n[ 95.890755] __sock_create+0x2e1/0x650\n[ 95.890755] __sys_socket+0xd0/0x280\n[ 95.890755] __x64_sys_socket+0x75/0x80\n[ 95.890755] do_syscall_64+0xc4/0x1b0\n[ 95.890755] entry_SYSCALL_64_after_hwframe+0x67/0x6f\n[ 95.890755]\n[ 95.890755] Freed by task 506:\n[ 95.890755] kasan_save_track+0x3f/0x70\n[ 95.890755] kasan_save_free_info+0x40/0x50\n[ 95.890755] poison_slab_object+0x118/0x180\n[ 95.890755] __kasan_slab_free+0x12/0x30\n[ 95.890755] kfree+0xb2/0x240\n[ 95.890755] __sk_destruct+0x317/0x410\n[ 95.890755] sco_sock_release+0x232/0x280\n[ 95.890755] sock_close+0xb2/0x210\n[ 95.890755] __fput+0x37f/0x770\n[ 95.890755] task_work_run+0x1ae/0x210\n[ 95.890755] get_signal+0xe17/0xf70\n[ 95.890755] arch_do_signal_or_restart+0x3f/0x520\n[ 95.890755] syscall_exit_to_user_mode+0x55/0x120\n[ 95.890755] do_syscall_64+0xd1/0x1b0\n[ 95.890755] entry_SYSCALL_64_after_hwframe+0x67/0x6f\n[ 95.890755]\n[ 95.890755] The buggy address belongs to the object at ffff88800c388000\n[ 95.890755] which belongs to the cache kmalloc-1k of size 1024\n[ 95.890755] The buggy address is located 128 bytes inside of\n[ 95.890755] freed 1024-byte region [ffff88800c388000, ffff88800c388400)\n[ 95.890755]\n[ 95.890755] The buggy address belongs to the physical page:\n[ 95.890755] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88800c38a800 pfn:0xc388\n[ 95.890755] head: order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0\n[ 95.890755] ano\n---truncated---"
}
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"value": "AV:A - Triggering the bug requires an established SCO/eSCO link with an adjacent Bluetooth device, and the remote peer drives connection setup and the disconnect-confirm timing that feeds the race. Per kernel scoring guidance, Bluetooth-dependent flaws are Adjacent.\nAC:L - The attacker controls both sides of the race \u2014 it arms the 2-second disconnect timer via shutdown()/close() and issues the racing close(), and can repeat the connect/close cycle across many sockets until the window is hit. No condition outside the attacker\u0027s influence is required.\nPR:L - Neither bt_sock_create() nor sco_sock_create() performs any capability check, so any unprivileged local user can create, connect, and close a BTPROTO_SCO socket. No CAP_NET_ADMIN or root is needed.\nUI:N - The entire sequence is driven by the attacker\u0027s own socket syscalls and the kernel\u0027s delayed workqueue; no victim action is required.\nS:U - The use-after-free corrupts kernel slab memory within the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The freed struct sock can be reclaimed and re-sprayed by the attacker, and sco_sock_timeout() then reads sk-\u003esk_state_change and sk_err from attacker-controlled freed memory, giving a path to arbitrary kernel memory disclosure.\nI:H - sock_hold() performs a 4-byte increment into the freed object and lock_sock()/sk-\u003esk_state_change() write to and indirect-call through freed memory, providing write and control-flow-hijack primitives suitable for privilege escalation.\nA:H - Even unweaponized, the use-after-free writes into and calls through freed slab memory, reliably producing a KASAN splat, oops, or kernel panic as demonstrated by the reporter\u0027s proof-of-concept."
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CVE-2021-47383 (GCVE-0-2021-47383)
Vulnerability from cvelistv5
Published
2024-05-21 15:03
Modified
2026-08-05 08:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
tty: Fix out-of-bound vmalloc access in imageblit
This issue happens when a userspace program does an ioctl
FBIOPUT_VSCREENINFO passing the fb_var_screeninfo struct
containing only the fields xres, yres, and bits_per_pixel
with values.
If this struct is the same as the previous ioctl, the
vc_resize() detects it and doesn't call the resize_screen(),
leaving the fb_var_screeninfo incomplete. And this leads to
the updatescrollmode() calculates a wrong value to
fbcon_display->vrows, which makes the real_y() return a
wrong value of y, and that value, eventually, causes
the imageblit to access an out-of-bound address value.
To solve this issue I made the resize_screen() be called
even if the screen does not need any resizing, so it will
"fix and fill" the fb_var_screeninfo independently.
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-2021-47291 (GCVE-0-2021-47291)
Vulnerability from cvelistv5
Published
2024-05-21 14:35
Modified
2026-08-05 08:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
ipv6: fix another slab-out-of-bounds in fib6_nh_flush_exceptions
While running the self-tests on a KASAN enabled kernel, I observed a
slab-out-of-bounds splat very similar to the one reported in
commit 821bbf79fe46 ("ipv6: Fix KASAN: slab-out-of-bounds Read in
fib6_nh_flush_exceptions").
We additionally need to take care of fib6_metrics initialization
failure when the caller provides an nh.
The fix is similar, explicitly free the route instead of calling
fib6_info_release on a half-initialized object.
References
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|---|---|---|
Impacted products
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CVE-2024-26930 (GCVE-0-2024-26930)
Vulnerability from cvelistv5
Published
2024-05-01 05:17
Modified
2026-08-05 11:28
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: qla2xxx: Fix double free of the ha->vp_map pointer
Coverity scan reported potential risk of double free of the pointer
ha->vp_map. ha->vp_map was freed in qla2x00_mem_alloc(), and again freed
in function qla2x00_mem_free(ha).
Assign NULL to vp_map and kfree take care of NULL.
References
| URL | Tags | |
|---|---|---|
Impacted products
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CVE-2024-42104 (GCVE-0-2024-42104)
Vulnerability from cvelistv5
Published
2024-07-30 07:46
Modified
2026-08-05 11:35
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
nilfs2: add missing check for inode numbers on directory entries
Syzbot reported that mounting and unmounting a specific pattern of
corrupted nilfs2 filesystem images causes a use-after-free of metadata
file inodes, which triggers a kernel bug in lru_add_fn().
As Jan Kara pointed out, this is because the link count of a metadata file
gets corrupted to 0, and nilfs_evict_inode(), which is called from iput(),
tries to delete that inode (ifile inode in this case).
The inconsistency occurs because directories containing the inode numbers
of these metadata files that should not be visible in the namespace are
read without checking.
Fix this issue by treating the inode numbers of these internal files as
errors in the sanity check helper when reading directory folios/pages.
Also thanks to Hillf Danton and Matthew Wilcox for their initial mm-layer
analysis.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 2ba466d74ed74f073257f86e61519cb8f8f46184 Version: 2ba466d74ed74f073257f86e61519cb8f8f46184 Version: 2ba466d74ed74f073257f86e61519cb8f8f46184 Version: 2ba466d74ed74f073257f86e61519cb8f8f46184 Version: 2ba466d74ed74f073257f86e61519cb8f8f46184 Version: 2ba466d74ed74f073257f86e61519cb8f8f46184 Version: 2ba466d74ed74f073257f86e61519cb8f8f46184 Version: 2ba466d74ed74f073257f86e61519cb8f8f46184 |
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CVE-2023-6546 (GCVE-0-2023-6546)
Vulnerability from cvelistv5
Published
2023-12-21 20:01
Modified
2026-08-06 19:08
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-366 - Race Condition within a Thread
Summary
A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem on a struct gsm_dlci while restarting the gsm mux. This could allow a local unprivileged user to escalate their privileges on the system.
References
| URL | Tags | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected: 0:4.18.0-513.24.1.rt7.326.el8_9 < * cpe:/a:redhat:enterprise_linux:8::nfv cpe:/a:redhat:enterprise_linux:8::realtime |
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CVE-2024-23307 (GCVE-0-2024-23307)
Vulnerability from cvelistv5
Published
2024-01-25 06:59
Modified
2026-05-12 11:49
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-190 - Integer Overflow or Wraparound
Summary
Integer Overflow or Wraparound vulnerability in Linux Linux kernel kernel on Linux, x86, ARM (md, raid, raid5 modules) allows Forced Integer Overflow.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux kernel |
Version: v4.1-rc1 < v6.8-rc1 |
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CVE-2024-40902 (GCVE-0-2024-40902)
Vulnerability from cvelistv5
Published
2024-07-12 12:20
Modified
2026-08-05 11:33
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
jfs: xattr: fix buffer overflow for invalid xattr
When an xattr size is not what is expected, it is printed out to the
kernel log in hex format as a form of debugging. But when that xattr
size is bigger than the expected size, printing it out can cause an
access off the end of the buffer.
Fix this all up by properly restricting the size of the debug hex dump
in the kernel log.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
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|---|---|---|---|---|
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CVE-2023-1829 (GCVE-0-2023-1829)
Vulnerability from cvelistv5
Published
2023-04-12 11:16
Modified
2026-07-29 13:57
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-416 - Use After Free
Summary
A use-after-free vulnerability in the Linux Kernel traffic control index filter (tcindex) can be exploited to achieve local privilege escalation. The tcindex_delete function which does not properly deactivate filters in case of a perfect hashes while deleting the underlying structure which can later lead to double freeing the structure. A local attacker user can use this vulnerability to elevate its privileges to root.
We recommend upgrading past commit 8c710f75256bb3cf05ac7b1672c82b92c43f3d28 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ .
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux Kernel |
Version: 3.8.0 ≤ Version: 4.15.0 ≤ Version: 4.20.0 ≤ Version: 5.5.0 ≤ Version: 5.11.0 ≤ Version: 5.16.0 ≤ Version: 6.2.0 ≤ cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
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CVE-2024-26610 (GCVE-0-2024-26610)
Vulnerability from cvelistv5
Published
2024-02-29 15:52
Modified
2026-08-05 11:26
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: fix a memory corruption
iwl_fw_ini_trigger_tlv::data is a pointer to a __le32, which means that
if we copy to iwl_fw_ini_trigger_tlv::data + offset while offset is in
bytes, we'll write past the buffer.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
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CVE-2023-6531 (GCVE-0-2023-6531)
Vulnerability from cvelistv5
Published
2024-01-21 10:01
Modified
2026-08-06 19:12
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Summary
A use-after-free flaw was found in the Linux Kernel due to a race problem in the unix garbage collector's deletion of SKB races with unix_stream_read_generic() on the socket that the SKB is queued on.
References
| URL | Tags | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected: 0:5.14.0-427.13.1.el9_4 < * cpe:/a:redhat:enterprise_linux:9::appstream cpe:/a:redhat:enterprise_linux:9::crb cpe:/a:redhat:enterprise_linux:9::nfv cpe:/a:redhat:enterprise_linux:9::realtime cpe:/o:redhat:enterprise_linux:9::baseos |
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CVE-2024-26923 (GCVE-0-2024-26923)
Vulnerability from cvelistv5
Published
2024-04-24 21:49
Modified
2026-08-05 11:28
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
af_unix: Fix garbage collector racing against connect()
Garbage collector does not take into account the risk of embryo getting
enqueued during the garbage collection. If such embryo has a peer that
carries SCM_RIGHTS, two consecutive passes of scan_children() may see a
different set of children. Leading to an incorrectly elevated inflight
count, and then a dangling pointer within the gc_inflight_list.
sockets are AF_UNIX/SOCK_STREAM
S is an unconnected socket
L is a listening in-flight socket bound to addr, not in fdtable
V's fd will be passed via sendmsg(), gets inflight count bumped
connect(S, addr) sendmsg(S, [V]); close(V) __unix_gc()
---------------- ------------------------- -----------
NS = unix_create1()
skb1 = sock_wmalloc(NS)
L = unix_find_other(addr)
unix_state_lock(L)
unix_peer(S) = NS
// V count=1 inflight=0
NS = unix_peer(S)
skb2 = sock_alloc()
skb_queue_tail(NS, skb2[V])
// V became in-flight
// V count=2 inflight=1
close(V)
// V count=1 inflight=1
// GC candidate condition met
for u in gc_inflight_list:
if (total_refs == inflight_refs)
add u to gc_candidates
// gc_candidates={L, V}
for u in gc_candidates:
scan_children(u, dec_inflight)
// embryo (skb1) was not
// reachable from L yet, so V's
// inflight remains unchanged
__skb_queue_tail(L, skb1)
unix_state_unlock(L)
for u in gc_candidates:
if (u.inflight)
scan_children(u, inc_inflight_move_tail)
// V count=1 inflight=2 (!)
If there is a GC-candidate listening socket, lock/unlock its state. This
makes GC wait until the end of any ongoing connect() to that socket. After
flipping the lock, a possibly SCM-laden embryo is already enqueued. And if
there is another embryo coming, it can not possibly carry SCM_RIGHTS. At
this point, unix_inflight() can not happen because unix_gc_lock is already
taken. Inflight graph remains unaffected.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 1fd05ba5a2f2aa8e7b9b52ef55df850e2e7d54c9 Version: 1fd05ba5a2f2aa8e7b9b52ef55df850e2e7d54c9 Version: 1fd05ba5a2f2aa8e7b9b52ef55df850e2e7d54c9 Version: 1fd05ba5a2f2aa8e7b9b52ef55df850e2e7d54c9 Version: 1fd05ba5a2f2aa8e7b9b52ef55df850e2e7d54c9 Version: 1fd05ba5a2f2aa8e7b9b52ef55df850e2e7d54c9 Version: 1fd05ba5a2f2aa8e7b9b52ef55df850e2e7d54c9 Version: 1fd05ba5a2f2aa8e7b9b52ef55df850e2e7d54c9 |
||
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CVE-2022-48662 (GCVE-0-2022-48662)
Vulnerability from cvelistv5
Published
2024-04-28 13:01
Modified
2026-05-11 18:44
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/i915/gem: Really move i915_gem_context.link under ref protection
i915_perf assumes that it can use the i915_gem_context reference to
protect its i915->gem.contexts.list iteration. However, this requires
that we do not remove the context from the list until after we drop the
final reference and release the struct. If, as currently, we remove the
context from the list during context_close(), the link.next pointer may
be poisoned while we are holding the context reference and cause a GPF:
[ 4070.573157] i915 0000:00:02.0: [drm:i915_perf_open_ioctl [i915]] filtering on ctx_id=0x1fffff ctx_id_mask=0x1fffff
[ 4070.574881] general protection fault, probably for non-canonical address 0xdead000000000100: 0000 [#1] PREEMPT SMP
[ 4070.574897] CPU: 1 PID: 284392 Comm: amd_performance Tainted: G E 5.17.9 #180
[ 4070.574903] Hardware name: Intel Corporation NUC7i5BNK/NUC7i5BNB, BIOS BNKBL357.86A.0052.2017.0918.1346 09/18/2017
[ 4070.574907] RIP: 0010:oa_configure_all_contexts.isra.0+0x222/0x350 [i915]
[ 4070.574982] Code: 08 e8 32 6e 10 e1 4d 8b 6d 50 b8 ff ff ff ff 49 83 ed 50 f0 41 0f c1 04 24 83 f8 01 0f 84 e3 00 00 00 85 c0 0f 8e fa 00 00 00 <49> 8b 45 50 48 8d 70 b0 49 8d 45 50 48 39 44 24 10 0f 85 34 fe ff
[ 4070.574990] RSP: 0018:ffffc90002077b78 EFLAGS: 00010202
[ 4070.574995] RAX: 0000000000000002 RBX: 0000000000000002 RCX: 0000000000000000
[ 4070.575000] RDX: 0000000000000001 RSI: ffffc90002077b20 RDI: ffff88810ddc7c68
[ 4070.575004] RBP: 0000000000000001 R08: ffff888103242648 R09: fffffffffffffffc
[ 4070.575008] R10: ffffffff82c50bc0 R11: 0000000000025c80 R12: ffff888101bf1860
[ 4070.575012] R13: dead0000000000b0 R14: ffffc90002077c04 R15: ffff88810be5cabc
[ 4070.575016] FS: 00007f1ed50c0780(0000) GS:ffff88885ec80000(0000) knlGS:0000000000000000
[ 4070.575021] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4070.575025] CR2: 00007f1ed5590280 CR3: 000000010ef6f005 CR4: 00000000003706e0
[ 4070.575029] Call Trace:
[ 4070.575033] <TASK>
[ 4070.575037] lrc_configure_all_contexts+0x13e/0x150 [i915]
[ 4070.575103] gen8_enable_metric_set+0x4d/0x90 [i915]
[ 4070.575164] i915_perf_open_ioctl+0xbc0/0x1500 [i915]
[ 4070.575224] ? asm_common_interrupt+0x1e/0x40
[ 4070.575232] ? i915_oa_init_reg_state+0x110/0x110 [i915]
[ 4070.575290] drm_ioctl_kernel+0x85/0x110
[ 4070.575296] ? update_load_avg+0x5f/0x5e0
[ 4070.575302] drm_ioctl+0x1d3/0x370
[ 4070.575307] ? i915_oa_init_reg_state+0x110/0x110 [i915]
[ 4070.575382] ? gen8_gt_irq_handler+0x46/0x130 [i915]
[ 4070.575445] __x64_sys_ioctl+0x3c4/0x8d0
[ 4070.575451] ? __do_softirq+0xaa/0x1d2
[ 4070.575456] do_syscall_64+0x35/0x80
[ 4070.575461] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 4070.575467] RIP: 0033:0x7f1ed5c10397
[ 4070.575471] Code: 3c 1c e8 1c ff ff ff 85 c0 79 87 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a9 da 0d 00 f7 d8 64 89 01 48
[ 4070.575478] RSP: 002b:00007ffd65c8d7a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 4070.575484] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f1ed5c10397
[ 4070.575488] RDX: 00007ffd65c8d7c0 RSI: 0000000040106476 RDI: 0000000000000006
[ 4070.575492] RBP: 00005620972f9c60 R08: 000000000000000a R09: 0000000000000005
[ 4070.575496] R10: 000000000000000d R11: 0000000000000246 R12: 000000000000000a
[ 4070.575500] R13: 000000000000000d R14: 0000000000000000 R15: 00007ffd65c8d7c0
[ 4070.575505] </TASK>
[ 4070.575507] Modules linked in: nls_ascii(E) nls_cp437(E) vfat(E) fat(E) i915(E) x86_pkg_temp_thermal(E) intel_powerclamp(E) crct10dif_pclmul(E) crc32_pclmul(E) crc32c_intel(E) aesni_intel(E) crypto_simd(E) intel_gtt(E) cryptd(E) ttm(E) rapl(E) intel_cstate(E) drm_kms_helper(E) cfbfillrect(E) syscopyarea(E) cfbimgblt(E) intel_uncore(E) sysfillrect(E) mei_me(E) sysimgblt(E) i2c_i801(E) fb_sys_fops(E) mei(E) intel_pch_thermal(E) i2c_smbus
---truncated---
References
Impacted products
{
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/gem: Really move i915_gem_context.link under ref protection\n\ni915_perf assumes that it can use the i915_gem_context reference to\nprotect its i915-\u003egem.contexts.list iteration. However, this requires\nthat we do not remove the context from the list until after we drop the\nfinal reference and release the struct. If, as currently, we remove the\ncontext from the list during context_close(), the link.next pointer may\nbe poisoned while we are holding the context reference and cause a GPF:\n\n[ 4070.573157] i915 0000:00:02.0: [drm:i915_perf_open_ioctl [i915]] filtering on ctx_id=0x1fffff ctx_id_mask=0x1fffff\n[ 4070.574881] general protection fault, probably for non-canonical address 0xdead000000000100: 0000 [#1] PREEMPT SMP\n[ 4070.574897] CPU: 1 PID: 284392 Comm: amd_performance Tainted: G E 5.17.9 #180\n[ 4070.574903] Hardware name: Intel Corporation NUC7i5BNK/NUC7i5BNB, BIOS BNKBL357.86A.0052.2017.0918.1346 09/18/2017\n[ 4070.574907] RIP: 0010:oa_configure_all_contexts.isra.0+0x222/0x350 [i915]\n[ 4070.574982] Code: 08 e8 32 6e 10 e1 4d 8b 6d 50 b8 ff ff ff ff 49 83 ed 50 f0 41 0f c1 04 24 83 f8 01 0f 84 e3 00 00 00 85 c0 0f 8e fa 00 00 00 \u003c49\u003e 8b 45 50 48 8d 70 b0 49 8d 45 50 48 39 44 24 10 0f 85 34 fe ff\n[ 4070.574990] RSP: 0018:ffffc90002077b78 EFLAGS: 00010202\n[ 4070.574995] RAX: 0000000000000002 RBX: 0000000000000002 RCX: 0000000000000000\n[ 4070.575000] RDX: 0000000000000001 RSI: ffffc90002077b20 RDI: ffff88810ddc7c68\n[ 4070.575004] RBP: 0000000000000001 R08: ffff888103242648 R09: fffffffffffffffc\n[ 4070.575008] R10: ffffffff82c50bc0 R11: 0000000000025c80 R12: ffff888101bf1860\n[ 4070.575012] R13: dead0000000000b0 R14: ffffc90002077c04 R15: ffff88810be5cabc\n[ 4070.575016] FS: 00007f1ed50c0780(0000) GS:ffff88885ec80000(0000) knlGS:0000000000000000\n[ 4070.575021] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 4070.575025] CR2: 00007f1ed5590280 CR3: 000000010ef6f005 CR4: 00000000003706e0\n[ 4070.575029] Call Trace:\n[ 4070.575033] \u003cTASK\u003e\n[ 4070.575037] lrc_configure_all_contexts+0x13e/0x150 [i915]\n[ 4070.575103] gen8_enable_metric_set+0x4d/0x90 [i915]\n[ 4070.575164] i915_perf_open_ioctl+0xbc0/0x1500 [i915]\n[ 4070.575224] ? asm_common_interrupt+0x1e/0x40\n[ 4070.575232] ? i915_oa_init_reg_state+0x110/0x110 [i915]\n[ 4070.575290] drm_ioctl_kernel+0x85/0x110\n[ 4070.575296] ? update_load_avg+0x5f/0x5e0\n[ 4070.575302] drm_ioctl+0x1d3/0x370\n[ 4070.575307] ? i915_oa_init_reg_state+0x110/0x110 [i915]\n[ 4070.575382] ? gen8_gt_irq_handler+0x46/0x130 [i915]\n[ 4070.575445] __x64_sys_ioctl+0x3c4/0x8d0\n[ 4070.575451] ? __do_softirq+0xaa/0x1d2\n[ 4070.575456] do_syscall_64+0x35/0x80\n[ 4070.575461] entry_SYSCALL_64_after_hwframe+0x44/0xae\n[ 4070.575467] RIP: 0033:0x7f1ed5c10397\n[ 4070.575471] Code: 3c 1c e8 1c ff ff ff 85 c0 79 87 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 8b 0d a9 da 0d 00 f7 d8 64 89 01 48\n[ 4070.575478] RSP: 002b:00007ffd65c8d7a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010\n[ 4070.575484] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f1ed5c10397\n[ 4070.575488] RDX: 00007ffd65c8d7c0 RSI: 0000000040106476 RDI: 0000000000000006\n[ 4070.575492] RBP: 00005620972f9c60 R08: 000000000000000a R09: 0000000000000005\n[ 4070.575496] R10: 000000000000000d R11: 0000000000000246 R12: 000000000000000a\n[ 4070.575500] R13: 000000000000000d R14: 0000000000000000 R15: 00007ffd65c8d7c0\n[ 4070.575505] \u003c/TASK\u003e\n[ 4070.575507] Modules linked in: nls_ascii(E) nls_cp437(E) vfat(E) fat(E) i915(E) x86_pkg_temp_thermal(E) intel_powerclamp(E) crct10dif_pclmul(E) crc32_pclmul(E) crc32c_intel(E) aesni_intel(E) crypto_simd(E) intel_gtt(E) cryptd(E) ttm(E) rapl(E) intel_cstate(E) drm_kms_helper(E) cfbfillrect(E) syscopyarea(E) cfbimgblt(E) intel_uncore(E) sysfillrect(E) mei_me(E) sysimgblt(E) i2c_i801(E) fb_sys_fops(E) mei(E) intel_pch_thermal(E) i2c_smbus\n---truncated---"
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"url": "https://git.kernel.org/stable/c/d119888b09bd567e07c6b93a07f175df88857e02"
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"title": "drm/i915/gem: Really move i915_gem_context.link under ref protection",
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"datePublished": "2024-04-28T13:01:31.373Z",
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CVE-2024-40909 (GCVE-0-2024-40909)
Vulnerability from cvelistv5
Published
2024-07-12 12:20
Modified
2026-08-05 11:33
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix a potential use-after-free in bpf_link_free()
After commit 1a80dbcb2dba, bpf_link can be freed by
link->ops->dealloc_deferred, but the code still tests and uses
link->ops->dealloc afterward, which leads to a use-after-free as
reported by syzbot. Actually, one of them should be sufficient, so
just call one of them instead of both. Also add a WARN_ON() in case
of any problematic implementation.
References
Impacted products
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CVE-2024-40954 (GCVE-0-2024-40954)
Vulnerability from cvelistv5
Published
2024-07-12 12:31
Modified
2026-08-05 11:34
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: do not leave a dangling sk pointer, when socket creation fails
It is possible to trigger a use-after-free by:
* attaching an fentry probe to __sock_release() and the probe calling the
bpf_get_socket_cookie() helper
* running traceroute -I 1.1.1.1 on a freshly booted VM
A KASAN enabled kernel will log something like below (decoded and stripped):
==================================================================
BUG: KASAN: slab-use-after-free in __sock_gen_cookie (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-instrumented.h:1611 net/core/sock_diag.c:29)
Read of size 8 at addr ffff888007110dd8 by task traceroute/299
CPU: 2 PID: 299 Comm: traceroute Tainted: G E 6.10.0-rc2+ #2
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
<TASK>
dump_stack_lvl (lib/dump_stack.c:117 (discriminator 1))
print_report (mm/kasan/report.c:378 mm/kasan/report.c:488)
? __sock_gen_cookie (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-instrumented.h:1611 net/core/sock_diag.c:29)
kasan_report (mm/kasan/report.c:603)
? __sock_gen_cookie (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-instrumented.h:1611 net/core/sock_diag.c:29)
kasan_check_range (mm/kasan/generic.c:183 mm/kasan/generic.c:189)
__sock_gen_cookie (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-instrumented.h:1611 net/core/sock_diag.c:29)
bpf_get_socket_ptr_cookie (./arch/x86/include/asm/preempt.h:94 ./include/linux/sock_diag.h:42 net/core/filter.c:5094 net/core/filter.c:5092)
bpf_prog_875642cf11f1d139___sock_release+0x6e/0x8e
bpf_trampoline_6442506592+0x47/0xaf
__sock_release (net/socket.c:652)
__sock_create (net/socket.c:1601)
...
Allocated by task 299 on cpu 2 at 78.328492s:
kasan_save_stack (mm/kasan/common.c:48)
kasan_save_track (mm/kasan/common.c:68)
__kasan_slab_alloc (mm/kasan/common.c:312 mm/kasan/common.c:338)
kmem_cache_alloc_noprof (mm/slub.c:3941 mm/slub.c:4000 mm/slub.c:4007)
sk_prot_alloc (net/core/sock.c:2075)
sk_alloc (net/core/sock.c:2134)
inet_create (net/ipv4/af_inet.c:327 net/ipv4/af_inet.c:252)
__sock_create (net/socket.c:1572)
__sys_socket (net/socket.c:1660 net/socket.c:1644 net/socket.c:1706)
__x64_sys_socket (net/socket.c:1718)
do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
Freed by task 299 on cpu 2 at 78.328502s:
kasan_save_stack (mm/kasan/common.c:48)
kasan_save_track (mm/kasan/common.c:68)
kasan_save_free_info (mm/kasan/generic.c:582)
poison_slab_object (mm/kasan/common.c:242)
__kasan_slab_free (mm/kasan/common.c:256)
kmem_cache_free (mm/slub.c:4437 mm/slub.c:4511)
__sk_destruct (net/core/sock.c:2117 net/core/sock.c:2208)
inet_create (net/ipv4/af_inet.c:397 net/ipv4/af_inet.c:252)
__sock_create (net/socket.c:1572)
__sys_socket (net/socket.c:1660 net/socket.c:1644 net/socket.c:1706)
__x64_sys_socket (net/socket.c:1718)
do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
Fix this by clearing the struct socket reference in sk_common_release() to cover
all protocol families create functions, which may already attached the
reference to the sk object with sock_init_data().
References
| URL | Tags | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||
Impacted products
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: do not leave a dangling sk pointer, when socket creation fails\n\nIt is possible to trigger a use-after-free by:\n * attaching an fentry probe to __sock_release() and the probe calling the\n bpf_get_socket_cookie() helper\n * running traceroute -I 1.1.1.1 on a freshly booted VM\n\nA KASAN enabled kernel will log something like below (decoded and stripped):\n==================================================================\nBUG: KASAN: slab-use-after-free in __sock_gen_cookie (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-instrumented.h:1611 net/core/sock_diag.c:29)\nRead of size 8 at addr ffff888007110dd8 by task traceroute/299\n\nCPU: 2 PID: 299 Comm: traceroute Tainted: G E 6.10.0-rc2+ #2\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014\nCall Trace:\n \u003cTASK\u003e\ndump_stack_lvl (lib/dump_stack.c:117 (discriminator 1))\nprint_report (mm/kasan/report.c:378 mm/kasan/report.c:488)\n? __sock_gen_cookie (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-instrumented.h:1611 net/core/sock_diag.c:29)\nkasan_report (mm/kasan/report.c:603)\n? __sock_gen_cookie (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-instrumented.h:1611 net/core/sock_diag.c:29)\nkasan_check_range (mm/kasan/generic.c:183 mm/kasan/generic.c:189)\n__sock_gen_cookie (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-instrumented.h:1611 net/core/sock_diag.c:29)\nbpf_get_socket_ptr_cookie (./arch/x86/include/asm/preempt.h:94 ./include/linux/sock_diag.h:42 net/core/filter.c:5094 net/core/filter.c:5092)\nbpf_prog_875642cf11f1d139___sock_release+0x6e/0x8e\nbpf_trampoline_6442506592+0x47/0xaf\n__sock_release (net/socket.c:652)\n__sock_create (net/socket.c:1601)\n...\nAllocated by task 299 on cpu 2 at 78.328492s:\nkasan_save_stack (mm/kasan/common.c:48)\nkasan_save_track (mm/kasan/common.c:68)\n__kasan_slab_alloc (mm/kasan/common.c:312 mm/kasan/common.c:338)\nkmem_cache_alloc_noprof (mm/slub.c:3941 mm/slub.c:4000 mm/slub.c:4007)\nsk_prot_alloc (net/core/sock.c:2075)\nsk_alloc (net/core/sock.c:2134)\ninet_create (net/ipv4/af_inet.c:327 net/ipv4/af_inet.c:252)\n__sock_create (net/socket.c:1572)\n__sys_socket (net/socket.c:1660 net/socket.c:1644 net/socket.c:1706)\n__x64_sys_socket (net/socket.c:1718)\ndo_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)\nentry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)\n\nFreed by task 299 on cpu 2 at 78.328502s:\nkasan_save_stack (mm/kasan/common.c:48)\nkasan_save_track (mm/kasan/common.c:68)\nkasan_save_free_info (mm/kasan/generic.c:582)\npoison_slab_object (mm/kasan/common.c:242)\n__kasan_slab_free (mm/kasan/common.c:256)\nkmem_cache_free (mm/slub.c:4437 mm/slub.c:4511)\n__sk_destruct (net/core/sock.c:2117 net/core/sock.c:2208)\ninet_create (net/ipv4/af_inet.c:397 net/ipv4/af_inet.c:252)\n__sock_create (net/socket.c:1572)\n__sys_socket (net/socket.c:1660 net/socket.c:1644 net/socket.c:1706)\n__x64_sys_socket (net/socket.c:1718)\ndo_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)\nentry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)\n\nFix this by clearing the struct socket reference in sk_common_release() to cover\nall protocol families create functions, which may already attached the\nreference to the sk object with sock_init_data()."
}
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"datePublished": "2024-07-12T12:31:57.517Z",
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CVE-2023-52502 (GCVE-0-2023-52502)
Vulnerability from cvelistv5
Published
2024-03-02 21:52
Modified
2026-08-05 09:10
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn()
Sili Luo reported a race in nfc_llcp_sock_get(), leading to UAF.
Getting a reference on the socket found in a lookup while
holding a lock should happen before releasing the lock.
nfc_llcp_sock_get_sn() has a similar problem.
Finally nfc_llcp_recv_snl() needs to make sure the socket
found by nfc_llcp_sock_from_sn() does not disappear.
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 8f50020ed9b81ba909ce9573f9d05263cdebf502 Version: 8f50020ed9b81ba909ce9573f9d05263cdebf502 Version: 8f50020ed9b81ba909ce9573f9d05263cdebf502 Version: 8f50020ed9b81ba909ce9573f9d05263cdebf502 Version: 8f50020ed9b81ba909ce9573f9d05263cdebf502 Version: 8f50020ed9b81ba909ce9573f9d05263cdebf502 Version: 8f50020ed9b81ba909ce9573f9d05263cdebf502 |
||
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CVE-2021-47378 (GCVE-0-2021-47378)
Vulnerability from cvelistv5
Published
2024-05-21 15:03
Modified
2026-08-05 08:47
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
nvme-rdma: destroy cm id before destroy qp to avoid use after free
We should always destroy cm_id before destroy qp to avoid to get cma
event after qp was destroyed, which may lead to use after free.
In RDMA connection establishment error flow, don't destroy qp in cm
event handler.Just report cm_error to upper level, qp will be destroy
in nvme_rdma_alloc_queue() after destroy cm id.
References
Impacted products
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CVE-2024-26622 (GCVE-0-2024-26622)
Vulnerability from cvelistv5
Published
2024-03-04 06:40
Modified
2026-05-11 20:00
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
tomoyo: fix UAF write bug in tomoyo_write_control()
Since tomoyo_write_control() updates head->write_buf when write()
of long lines is requested, we need to fetch head->write_buf after
head->io_sem is held. Otherwise, concurrent write() requests can
cause use-after-free-write and double-free problems.
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: bd03a3e4c9a9df0c6b007045fa7fc8889111a478 Version: bd03a3e4c9a9df0c6b007045fa7fc8889111a478 Version: bd03a3e4c9a9df0c6b007045fa7fc8889111a478 Version: bd03a3e4c9a9df0c6b007045fa7fc8889111a478 Version: bd03a3e4c9a9df0c6b007045fa7fc8889111a478 Version: bd03a3e4c9a9df0c6b007045fa7fc8889111a478 |
||
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CVE-2024-42148 (GCVE-0-2024-42148)
Vulnerability from cvelistv5
Published
2024-07-30 07:46
Modified
2026-05-11 20:27
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bnx2x: Fix multiple UBSAN array-index-out-of-bounds
Fix UBSAN warnings that occur when using a system with 32 physical
cpu cores or more, or when the user defines a number of Ethernet
queues greater than or equal to FP_SB_MAX_E1x using the num_queues
module parameter.
Currently there is a read/write out of bounds that occurs on the array
"struct stats_query_entry query" present inside the "bnx2x_fw_stats_req"
struct in "drivers/net/ethernet/broadcom/bnx2x/bnx2x.h".
Looking at the definition of the "struct stats_query_entry query" array:
struct stats_query_entry query[FP_SB_MAX_E1x+
BNX2X_FIRST_QUEUE_QUERY_IDX];
FP_SB_MAX_E1x is defined as the maximum number of fast path interrupts and
has a value of 16, while BNX2X_FIRST_QUEUE_QUERY_IDX has a value of 3
meaning the array has a total size of 19.
Since accesses to "struct stats_query_entry query" are offset-ted by
BNX2X_FIRST_QUEUE_QUERY_IDX, that means that the total number of Ethernet
queues should not exceed FP_SB_MAX_E1x (16). However one of these queues
is reserved for FCOE and thus the number of Ethernet queues should be set
to [FP_SB_MAX_E1x -1] (15) if FCOE is enabled or [FP_SB_MAX_E1x] (16) if
it is not.
This is also described in a comment in the source code in
drivers/net/ethernet/broadcom/bnx2x/bnx2x.h just above the Macro definition
of FP_SB_MAX_E1x. Below is the part of this explanation that it important
for this patch
/*
* The total number of L2 queues, MSIX vectors and HW contexts (CIDs) is
* control by the number of fast-path status blocks supported by the
* device (HW/FW). Each fast-path status block (FP-SB) aka non-default
* status block represents an independent interrupts context that can
* serve a regular L2 networking queue. However special L2 queues such
* as the FCoE queue do not require a FP-SB and other components like
* the CNIC may consume FP-SB reducing the number of possible L2 queues
*
* If the maximum number of FP-SB available is X then:
* a. If CNIC is supported it consumes 1 FP-SB thus the max number of
* regular L2 queues is Y=X-1
* b. In MF mode the actual number of L2 queues is Y= (X-1/MF_factor)
* c. If the FCoE L2 queue is supported the actual number of L2 queues
* is Y+1
* d. The number of irqs (MSIX vectors) is either Y+1 (one extra for
* slow-path interrupts) or Y+2 if CNIC is supported (one additional
* FP interrupt context for the CNIC).
* e. The number of HW context (CID count) is always X or X+1 if FCoE
* L2 queue is supported. The cid for the FCoE L2 queue is always X.
*/
However this driver also supports NICs that use the E2 controller which can
handle more queues due to having more FP-SB represented by FP_SB_MAX_E2.
Looking at the commits when the E2 support was added, it was originally
using the E1x parameters: commit f2e0899f0f27 ("bnx2x: Add 57712 support").
Back then FP_SB_MAX_E2 was set to 16 the same as E1x. However the driver
was later updated to take full advantage of the E2 instead of having it be
limited to the capabilities of the E1x. But as far as we can tell, the
array "stats_query_entry query" was still limited to using the FP-SB
available to the E1x cards as part of an oversignt when the driver was
updated to take full advantage of the E2, and now with the driver being
aware of the greater queue size supported by E2 NICs, it causes the UBSAN
warnings seen in the stack traces below.
This patch increases the size of the "stats_query_entry query" array by
replacing FP_SB_MAX_E1x with FP_SB_MAX_E2 to be large enough to handle
both types of NICs.
Stack traces:
UBSAN: array-index-out-of-bounds in
drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c:1529:11
index 20 is out of range for type 'stats_query_entry [19]'
CPU: 12 PID: 858 Comm: systemd-network Not tainted 6.9.0-060900rc7-generic
#202405052133
Hardware name: HP ProLiant DL360 Gen9/ProLiant DL360
---truncated---
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 50f0a562f8cc9ed9d9f7f7380434c3c8646172d5 Version: 50f0a562f8cc9ed9d9f7f7380434c3c8646172d5 Version: 50f0a562f8cc9ed9d9f7f7380434c3c8646172d5 Version: 50f0a562f8cc9ed9d9f7f7380434c3c8646172d5 Version: 50f0a562f8cc9ed9d9f7f7380434c3c8646172d5 Version: 50f0a562f8cc9ed9d9f7f7380434c3c8646172d5 Version: 50f0a562f8cc9ed9d9f7f7380434c3c8646172d5 Version: 50f0a562f8cc9ed9d9f7f7380434c3c8646172d5 |
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CVE-2024-26766 (GCVE-0-2024-26766)
Vulnerability from cvelistv5
Published
2024-04-03 17:00
Modified
2026-08-05 11:27
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
IB/hfi1: Fix sdma.h tx->num_descs off-by-one error
Unfortunately the commit `fd8958efe877` introduced another error
causing the `descs` array to overflow. This reults in further crashes
easily reproducible by `sendmsg` system call.
[ 1080.836473] general protection fault, probably for non-canonical address 0x400300015528b00a: 0000 [#1] PREEMPT SMP PTI
[ 1080.869326] RIP: 0010:hfi1_ipoib_build_ib_tx_headers.constprop.0+0xe1/0x2b0 [hfi1]
--
[ 1080.974535] Call Trace:
[ 1080.976990] <TASK>
[ 1081.021929] hfi1_ipoib_send_dma_common+0x7a/0x2e0 [hfi1]
[ 1081.027364] hfi1_ipoib_send_dma_list+0x62/0x270 [hfi1]
[ 1081.032633] hfi1_ipoib_send+0x112/0x300 [hfi1]
[ 1081.042001] ipoib_start_xmit+0x2a9/0x2d0 [ib_ipoib]
[ 1081.046978] dev_hard_start_xmit+0xc4/0x210
--
[ 1081.148347] __sys_sendmsg+0x59/0xa0
crash> ipoib_txreq 0xffff9cfeba229f00
struct ipoib_txreq {
txreq = {
list = {
next = 0xffff9cfeba229f00,
prev = 0xffff9cfeba229f00
},
descp = 0xffff9cfeba229f40,
coalesce_buf = 0x0,
wait = 0xffff9cfea4e69a48,
complete = 0xffffffffc0fe0760 <hfi1_ipoib_sdma_complete>,
packet_len = 0x46d,
tlen = 0x0,
num_desc = 0x0,
desc_limit = 0x6,
next_descq_idx = 0x45c,
coalesce_idx = 0x0,
flags = 0x0,
descs = {{
qw = {0x8024000120dffb00, 0x4} # SDMA_DESC0_FIRST_DESC_FLAG (bit 63)
}, {
qw = { 0x3800014231b108, 0x4}
}, {
qw = { 0x310000e4ee0fcf0, 0x8}
}, {
qw = { 0x3000012e9f8000, 0x8}
}, {
qw = { 0x59000dfb9d0000, 0x8}
}, {
qw = { 0x78000e02e40000, 0x8}
}}
},
sdma_hdr = 0x400300015528b000, <<< invalid pointer in the tx request structure
sdma_status = 0x0, SDMA_DESC0_LAST_DESC_FLAG (bit 62)
complete = 0x0,
priv = 0x0,
txq = 0xffff9cfea4e69880,
skb = 0xffff9d099809f400
}
If an SDMA send consists of exactly 6 descriptors and requires dword
padding (in the 7th descriptor), the sdma_txreq descriptor array is not
properly expanded and the packet will overflow into the container
structure. This results in a panic when the send completion runs. The
exact panic varies depending on what elements of the container structure
get corrupted. The fix is to use the correct expression in
_pad_sdma_tx_descs() to test the need to expand the descriptor array.
With this patch the crashes are no longer reproducible and the machine is
stable.
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: d1c1ee052d25ca23735eea912f843bc7834781b4 Version: 40ac5cb6cbb01afa40881f78b4d2f559fb7065c4 Version: 6cf8f3d690bb5ad31ef0f41a6206ecf5a068d179 Version: bd57756a7e43c7127d0eca1fc5868e705fd0f7ba Version: eeaf35f4e3b360162081de5e744cf32d6d1b0091 Version: fd8958efe8779d3db19c9124fce593ce681ac709 Version: fd8958efe8779d3db19c9124fce593ce681ac709 Version: fd8958efe8779d3db19c9124fce593ce681ac709 Version: 0ef9594936d1f078e8599a1cf683b052df2bec00 Version: 4.19.291 ≤ Version: 5.4.251 ≤ Version: 5.10.188 ≤ Version: 5.15.99 ≤ Version: 6.1.16 ≤ Version: 6.2.3 ≤ |
||
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nIB/hfi1: Fix sdma.h tx-\u003enum_descs off-by-one error\n\nUnfortunately the commit `fd8958efe877` introduced another error\ncausing the `descs` array to overflow. This reults in further crashes\neasily reproducible by `sendmsg` system call.\n\n[ 1080.836473] general protection fault, probably for non-canonical address 0x400300015528b00a: 0000 [#1] PREEMPT SMP PTI\n[ 1080.869326] RIP: 0010:hfi1_ipoib_build_ib_tx_headers.constprop.0+0xe1/0x2b0 [hfi1]\n--\n[ 1080.974535] Call Trace:\n[ 1080.976990] \u003cTASK\u003e\n[ 1081.021929] hfi1_ipoib_send_dma_common+0x7a/0x2e0 [hfi1]\n[ 1081.027364] hfi1_ipoib_send_dma_list+0x62/0x270 [hfi1]\n[ 1081.032633] hfi1_ipoib_send+0x112/0x300 [hfi1]\n[ 1081.042001] ipoib_start_xmit+0x2a9/0x2d0 [ib_ipoib]\n[ 1081.046978] dev_hard_start_xmit+0xc4/0x210\n--\n[ 1081.148347] __sys_sendmsg+0x59/0xa0\n\ncrash\u003e ipoib_txreq 0xffff9cfeba229f00\nstruct ipoib_txreq {\n txreq = {\n list = {\n next = 0xffff9cfeba229f00,\n prev = 0xffff9cfeba229f00\n },\n descp = 0xffff9cfeba229f40,\n coalesce_buf = 0x0,\n wait = 0xffff9cfea4e69a48,\n complete = 0xffffffffc0fe0760 \u003chfi1_ipoib_sdma_complete\u003e,\n packet_len = 0x46d,\n tlen = 0x0,\n num_desc = 0x0,\n desc_limit = 0x6,\n next_descq_idx = 0x45c,\n coalesce_idx = 0x0,\n flags = 0x0,\n descs = {{\n qw = {0x8024000120dffb00, 0x4} # SDMA_DESC0_FIRST_DESC_FLAG (bit 63)\n }, {\n qw = { 0x3800014231b108, 0x4}\n }, {\n qw = { 0x310000e4ee0fcf0, 0x8}\n }, {\n qw = { 0x3000012e9f8000, 0x8}\n }, {\n qw = { 0x59000dfb9d0000, 0x8}\n }, {\n qw = { 0x78000e02e40000, 0x8}\n }}\n },\n sdma_hdr = 0x400300015528b000, \u003c\u003c\u003c invalid pointer in the tx request structure\n sdma_status = 0x0, SDMA_DESC0_LAST_DESC_FLAG (bit 62)\n complete = 0x0,\n priv = 0x0,\n txq = 0xffff9cfea4e69880,\n skb = 0xffff9d099809f400\n}\n\nIf an SDMA send consists of exactly 6 descriptors and requires dword\npadding (in the 7th descriptor), the sdma_txreq descriptor array is not\nproperly expanded and the packet will overflow into the container\nstructure. This results in a panic when the send completion runs. The\nexact panic varies depending on what elements of the container structure\nget corrupted. The fix is to use the correct expression in\n_pad_sdma_tx_descs() to test the need to expand the descriptor array.\n\nWith this patch the crashes are no longer reproducible and the machine is\nstable."
}
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"value": "AV:L - The overflow is driven entirely by the local sender\u0027s skb layout (number of page frags and total length), reached via an ordinary `sendmsg`/`writev` syscall on a socket routed over the hfi1 IPoIB netdev, as the reporter\u0027s `__sys_sendmsg` \u2192 `ipoib_start_xmit` \u2192 `hfi1_ipoib_send` trace shows. A remote peer cannot dictate the local skb fragment layout, so this is a local syscall vector, not network.\nAC:L - There is no race and no memory-layout dependency: the attacker deterministically chooses 4 page fragments plus a payload length not divisible by 4, which makes `num_desc` equal `desc_limit` exactly when padding is appended. Every attempt with that shape overflows `descs[6]`.\nPR:L - Any unprivileged local account can send datagrams out an IPoIB interface; no capability, no `/dev/infiniband` or `/dev/hfi1` access, and no namespace trickery is required. The `hfi1_ipoib_send` path is reached from the generic `dev_hard_start_xmit` transmit path available to all users.\nUI:N - The attacker\u0027s own `sendmsg` call triggers the overflow and the subsequent completion/reuse of the corrupted txreq; no administrator or victim action is involved.\nS:U - The out-of-bounds write stays within kernel memory managed by the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The overflow clobbers `ipoib_txreq.sdma_hdr`, a pointer that is later handed to `sdma_txadd_kvaddr()`/`dma_map_single()` as the packet-header DMA source, so corrupted-pointer contents can be DMA\u0027d onto the fabric; more generally an attacker-triggered out-of-bounds write over adjacent pointer fields is memory corruption leverageable for disclosure.\nI:H - This is a straight out-of-bounds write of a 32-byte descriptor past `descs[NUM_DESC]` into the container structure, overwriting `sdma_hdr`, `priv` and `txq` (and `qp`/`wqe`/`ss` or a `list_head` in the verbs and user_sdma containers), which then serve as write targets and list-manipulation operands.\nA:H - The reporter reproduced an immediate general protection fault in `hfi1_ipoib_build_ib_tx_headers()` from the corrupted `sdma_hdr`, and the NULLed `txq`/`priv` guarantee a NULL dereference in the completion path \u2014 a repeatable kernel panic from an unprivileged syscall."
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"datePublished": "2024-04-03T17:00:48.642Z",
"dateReserved": "2024-02-19T14:20:24.173Z",
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CVE-2024-45021 (GCVE-0-2024-45021)
Vulnerability from cvelistv5
Published
2024-09-11 15:13
Modified
2026-08-05 11:37
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
memcg_write_event_control(): fix a user-triggerable oops
we are *not* guaranteed that anything past the terminating NUL
is mapped (let alone initialized with anything sane).
References
| URL | Tags | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 0dea116876eefc9c7ca9c5d74fe665481e499fa3 Version: 0dea116876eefc9c7ca9c5d74fe665481e499fa3 Version: 0dea116876eefc9c7ca9c5d74fe665481e499fa3 Version: 0dea116876eefc9c7ca9c5d74fe665481e499fa3 Version: 0dea116876eefc9c7ca9c5d74fe665481e499fa3 Version: 0dea116876eefc9c7ca9c5d74fe665481e499fa3 Version: 0dea116876eefc9c7ca9c5d74fe665481e499fa3 Version: 0dea116876eefc9c7ca9c5d74fe665481e499fa3 |
||
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"value": "AV:L - The vulnerability is triggered by a write(2) to the cgroup v1 file `cgroup.event_control` on a locally mounted cgroupfs hierarchy. There is no network-reachable path to `memcg_write_event_control()`.\nAC:L - The attacker fully controls the write length and content, so the out-of-bounds read past the end of the `kmalloc(len+1)` buffer is 100% deterministic; sizing the write to exactly 4095 bytes places the buffer at a page boundary, and heap/page grooming lets the attacker steer the unbounded `memparse()` walk into an unmapped page. cgroup v1 with the memory controller is a widely deployed default (Android, legacy/hybrid systemd, embedded), not a rare config.\nPR:L - `cgroup.event_control` was flagged `CFTYPE_WORLD_WRITABLE` (mode 0666), so any unprivileged local user can write it wherever a cgroup v1 memory hierarchy is mounted; additionally `cgroup_fs_type` has `FS_USERNS_MOUNT` and `cgroup1_get_tree()` only requires `ns_capable(user_ns, CAP_SYS_ADMIN)`, obtainable via `unshare -Urmc`.\nUI:N - A single write() syscall from the attacker\u0027s own process triggers the bug; no victim action, mount by an administrator, or other user involvement is required.\nS:U - The out-of-bounds read and the resulting oops occur entirely within the kernel\u0027s own security authority, with no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The read runs off the end of the slab object and, via `memparse()`/`simple_strtoull()`, continues unbounded until a non-digit byte (and up to 19 bytes via `kstrndup()` on the vmpressure path), so it is not strictly bounded to a few bytes. The parsed adjacent-heap value is installed as a memcg usage threshold that the attacker can read back by driving cgroup memory usage and observing eventfd notifications, giving a genuine kernel-memory disclosure channel.\nI:N - The defect is purely an out-of-bounds read; no memory is written out of bounds and no attacker-controlled write primitive is created. The only state change is a threshold value inside the attacker\u0027s own cgroup, which they could already set directly by supplying an explicit args field.\nA:H - The unbounded read past a page-aligned kmalloc-4k object can reach an unmapped page and produce a kernel oops, exactly as described by the fix (\"user-triggerable oops\"); on KASAN or DEBUG_PAGEALLOC kernels the fault is deterministic and repeatable."
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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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