{"id":"CVE-2023-52450","state":"PUBLISHED","title":"perf/x86/intel/uncore: Fix NULL pointer dereference issue in upi_fill_topology()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nperf/x86/intel/uncore: Fix NULL pointer dereference issue in upi_fill_topology()\n\nGet logical socket id instead of physical id in discover_upi_topology()\nto avoid out-of-bound access on 'upi = &type->topology[nid][idx];' line\nthat leads to NULL pointer dereference in upi_fill_topology()","publishedAt":"2024-02-22T16:21:41.661Z","updatedAt":"2026-05-11T19:27:34.006Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f680b6e6062ef3c944ffc966d685f067958fca33","status":"affected","lessThan":"bf1bf09e6b599758851457f3999779622a48d015","versionType":"git"},{"version":"f680b6e6062ef3c944ffc966d685f067958fca33","status":"affected","lessThan":"3d6f4a78b104c65e4256c3776c9949f49a1b459e","versionType":"git"},{"version":"f680b6e6062ef3c944ffc966d685f067958fca33","status":"affected","lessThan":"1692cf434ba13ee212495b5af795b6a07e986ce4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/x86/events/intel/uncore_snbep.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.2","versionType":"semver"},{"version":"6.6.14","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7.2","status":"unaffected","lessThanOrEqual":"6.7.*","versionType":"semver"},{"version":"6.8","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/x86/events/intel/uncore_snbep.c"]}],"references":["https://git.kernel.org/stable/c/bf1bf09e6b599758851457f3999779622a48d015","https://git.kernel.org/stable/c/3d6f4a78b104c65e4256c3776c9949f49a1b459e","https://git.kernel.org/stable/c/1692cf434ba13ee212495b5af795b6a07e986ce4"],"weaknesses":[],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/52xxx/CVE-2023-52450.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-52450","state":"PUBLISHED","datePublished":"2024-02-22T16:21:41.661Z","dateUpdated":"2026-05-11T19:27:34.006Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-02-20T12:30:33.293Z"},"containers":{"cna":{"title":"perf/x86/intel/uncore: Fix NULL pointer dereference issue in upi_fill_topology()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nperf/x86/intel/uncore: Fix NULL pointer dereference issue in upi_fill_topology()\n\nGet logical socket id instead of physical id in discover_upi_topology()\nto avoid out-of-bound access on 'upi = &type->topology[nid][idx];' line\nthat leads to NULL pointer dereference in 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