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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- 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
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31542.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-31542