CVE-2026-31542
MEDIUM severity · CVSS 5.5
5.5CVSS MEDIUM
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/1f6aa5bbf1d0f81a8a2aafc16136e7dd9a609ff3 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/1f6aa5bbf1d0f81a8a2aafc16136e7dd9a609ff3Patch
- https://git.kernel.org/stable/c/79f0faf81d3bbbe5f07bf6892450d3740a1b290dPatch
- https://git.kernel.org/stable/c/9956d4892e78812246336c7ea51f5aa62018049ePatch
- https://git.kernel.org/stable/c/c1cf2218d2fa40a49921a7460981e5faab26f04ePatch
- https://git.kernel.org/stable/c/c51957601d32c0d195bce0b9345dfe93ef5728ccPatch