CVE-2026-31542

x86/platform/uv: Handle deconfigured sockets

EPSS 0.1%

Vexday Risk Score

3Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS —EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

24 Apr 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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 products

Linux · Linux

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References

https://git.kernel.org/stable/c/1f6aa5bbf1d0f81a8a2aafc16136e7dd9a609ff3 https://git.kernel.org/stable/c/79f0faf81d3bbbe5f07bf6892450d3740a1b290d https://git.kernel.org/stable/c/9956d4892e78812246336c7ea51f5aa62018049e https://git.kernel.org/stable/c/c1cf2218d2fa40a49921a7460981e5faab26f04e https://git.kernel.org/stable/c/c51957601d32c0d195bce0b9345dfe93ef5728cc