{"id":"CVE-2026-31542","summary":"x86/platform/uv: Handle deconfigured sockets","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nx86/platform/uv: Handle deconfigured sockets\n\nWhen a socket is deconfigured, it's mapped to SOCK_EMPTY (0xffff). This causes\na panic while allocating UV hub info structures.\n\nFix this by using NUMA_NO_NODE, allowing UV hub info structures to be\nallocated on valid nodes.","modified":"2026-05-28T03:54:52.688619733Z","published":"2026-04-24T14:33:11.205Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31542.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1f6aa5bbf1d0f81a8a2aafc16136e7dd9a609ff3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/79f0faf81d3bbbe5f07bf6892450d3740a1b290d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9956d4892e78812246336c7ea51f5aa62018049e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c1cf2218d2fa40a49921a7460981e5faab26f04e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c51957601d32c0d195bce0b9345dfe93ef5728cc"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31542.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-31542"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"8a50c58519271dd24ba760bb282875f6ad66ee71"},{"fixed":"c51957601d32c0d195bce0b9345dfe93ef5728cc"},{"fixed":"9956d4892e78812246336c7ea51f5aa62018049e"},{"fixed":"79f0faf81d3bbbe5f07bf6892450d3740a1b290d"},{"fixed":"c1cf2218d2fa40a49921a7460981e5faab26f04e"},{"fixed":"1f6aa5bbf1d0f81a8a2aafc16136e7dd9a609ff3"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31542.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.5.0"},{"fixed":"6.6.130"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.78"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.20"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.10"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31542.json"}}],"schema_version":"1.7.5"}