x86/platform/uv: Handle deconfigured sockets

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-31542
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-24 15:16:28 UTC
Updated2026-04-28 18:48:31 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000180000 probability, percentile 0.048130000 (date 2026-04-27)

Problem Types: NVD-CWE-noinfo

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 8a50c58519271dd24ba760bb282875f6ad66ee71 c51957601d32c0d195bce0b9345dfe93ef5728cc git Not specified
CNA Linux Linux affected 8a50c58519271dd24ba760bb282875f6ad66ee71 9956d4892e78812246336c7ea51f5aa62018049e git Not specified
CNA Linux Linux affected 8a50c58519271dd24ba760bb282875f6ad66ee71 79f0faf81d3bbbe5f07bf6892450d3740a1b290d git Not specified
CNA Linux Linux affected 8a50c58519271dd24ba760bb282875f6ad66ee71 c1cf2218d2fa40a49921a7460981e5faab26f04e git Not specified
CNA Linux Linux affected 8a50c58519271dd24ba760bb282875f6ad66ee71 1f6aa5bbf1d0f81a8a2aafc16136e7dd9a609ff3 git Not specified
CNA Linux Linux affected 6.5 Not specified
CNA Linux Linux unaffected 6.5 semver Not specified
CNA Linux Linux unaffected 6.6.130 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.78 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.20 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.10 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/1f6aa5bbf1d0f81a8a2aafc16136e7dd9a609ff3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/9956d4892e78812246336c7ea51f5aa62018049e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/c51957601d32c0d195bce0b9345dfe93ef5728cc 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/c1cf2218d2fa40a49921a7460981e5faab26f04e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/79f0faf81d3bbbe5f07bf6892450d3740a1b290d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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