CVE-2026-31542
x86/platform/uv: Handle deconfigured sockets
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.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Linux Linux |
≥ 8a50c58519271dd24ba760bb282875f6ad66ee71; < c51957601d32c0d195bce0b9345dfe93ef5728cc (affected, git) ≥ 8a50c58519271dd24ba760bb282875f6ad66ee71; < 9956d4892e78812246336c7ea51f5aa62018049e (affected, git) ≥ 8a50c58519271dd24ba760bb282875f6ad66ee71; < 79f0faf81d3bbbe5f07bf6892450d3740a1b290d (affected, git) ≥ 8a50c58519271dd24ba760bb282875f6ad66ee71; < c1cf2218d2fa40a49921a7460981e5faab26f04e (affected, git) ≥ 8a50c58519271dd24ba760bb282875f6ad66ee71; < 1f6aa5bbf1d0f81a8a2aafc16136e7dd9a609ff3 (affected, git) Other versions: unaffected |
CNA: Linux |
| Linux Linux |
6.5 (affected) ≥ 0; < 6.5 (unaffected, semver) ≥ 6.6.130; ≤ 6.6.* (unaffected, semver) ≥ 6.12.78; ≤ 6.12.* (unaffected, semver) ≥ 6.18.20; ≤ 6.18.* (unaffected, semver) ≥ 6.19.10; ≤ 6.19.* (unaffected, semver) ≥ 7.0; ≤ * (unaffected, original_commit_for_fix) Other versions: affected |
CNA: Linux |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://git.kernel.org/stable/c/c51957601d32c0d195bce0b9345dfe93ef5728ccCNA: Linux
- https://git.kernel.org/stable/c/9956d4892e78812246336c7ea51f5aa62018049eCNA: Linux
- https://git.kernel.org/stable/c/79f0faf81d3bbbe5f07bf6892450d3740a1b290dCNA: Linux
- https://git.kernel.org/stable/c/c1cf2218d2fa40a49921a7460981e5faab26f04eCNA: Linux
- https://git.kernel.org/stable/c/1f6aa5bbf1d0f81a8a2aafc16136e7dd9a609ff3CNA: Linux
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