CVE-2026-31542

high

Description

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

https://git.kernel.org/stable/c/c51957601d32c0d195bce0b9345dfe93ef5728cc

https://git.kernel.org/stable/c/c1cf2218d2fa40a49921a7460981e5faab26f04e

https://git.kernel.org/stable/c/9956d4892e78812246336c7ea51f5aa62018049e

https://git.kernel.org/stable/c/79f0faf81d3bbbe5f07bf6892450d3740a1b290d

https://git.kernel.org/stable/c/1f6aa5bbf1d0f81a8a2aafc16136e7dd9a609ff3

Details

Source: Mitre, NVD

Published: 2026-04-24

Updated: 2026-04-24

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High