CVE-2026-31542

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2026-04-24 Modified: 2026-11-11 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: None
A: 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.

Affected Software (11)

VendorProductVersion
Linux Linux 8a50c58519271dd24ba760bb282875f6ad66ee71 < c51957601d32c0d195bce0b9345dfe93ef5728cc
Linux Linux 8a50c58519271dd24ba760bb282875f6ad66ee71 < 9956d4892e78812246336c7ea51f5aa62018049e
Linux Linux 8a50c58519271dd24ba760bb282875f6ad66ee71 < 79f0faf81d3bbbe5f07bf6892450d3740a1b290d
Linux Linux 8a50c58519271dd24ba760bb282875f6ad66ee71 < c1cf2218d2fa40a49921a7460981e5faab26f04e
Linux Linux 8a50c58519271dd24ba760bb282875f6ad66ee71 < 1f6aa5bbf1d0f81a8a2aafc16136e7dd9a609ff3
Linux Linux 6.5
linux linux_kernel 6.5 – 6.6.130
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0
linux linux_kernel 7.0

Bug Bounty Relevance

36 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.12%
Raw Score 0.001220
Percentile 2.0%
Date 2026-11-14

EPSS Trend

2026-11-14
0.00122
2026-11-13
0.00122
2026-11-12
0.00122
2026-11-10
0.00122
2026-11-09
0.00122
2026-11-08
0.00122
2026-11-07
0.00122
2026-11-06
0.00122
2026-11-05
0.00122

Intelligence Sources

mitre ref →
nvd ref →