CVE-2026-31542 (GCVE-0-2026-31542)
Vulnerability from cvelistv5
Published
2026-04-24 14:33
Modified
2026-04-24 14:33
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
x86/platform/uv: Handle deconfigured sockets
When a socket is deconfigured, it's mapped to SOCK_EMPTY (0xffff). This causes
a panic while allocating UV hub info structures.
Fix this by using NUMA_NO_NODE, allowing UV hub info structures to be
allocated on valid nodes.
References
Impacted products
{
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"product": "Linux",
"programFiles": [
"arch/x86/kernel/apic/x2apic_uv_x.c"
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"versions": [
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"versions": [
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"status": "affected",
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"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/platform/uv: Handle deconfigured sockets\n\nWhen a socket is deconfigured, it\u0027s mapped to SOCK_EMPTY (0xffff). This causes\na panic while allocating UV hub info structures.\n\nFix this by using NUMA_NO_NODE, allowing UV hub info structures to be\nallocated on valid nodes."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-24T14:33:11.205Z",
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"shortName": "Linux"
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"references": [
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"url": "https://git.kernel.org/stable/c/9956d4892e78812246336c7ea51f5aa62018049e"
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{
"url": "https://git.kernel.org/stable/c/c1cf2218d2fa40a49921a7460981e5faab26f04e"
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{
"url": "https://git.kernel.org/stable/c/1f6aa5bbf1d0f81a8a2aafc16136e7dd9a609ff3"
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"cveId": "CVE-2026-31542",
"datePublished": "2026-04-24T14:33:11.205Z",
"dateReserved": "2026-03-09T15:48:24.114Z",
"dateUpdated": "2026-04-24T14:33:11.205Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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