{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43079","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-05-01T14:12:55.983Z","datePublished":"2026-05-06T07:40:15.767Z","dateUpdated":"2026-05-11T22:17:19.072Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T22:17:19.072Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nperf/x86/intel/uncore: Skip discovery table for offline dies\n\nThis warning can be triggered if NUMA is disabled and the system\nboots with fewer CPUs than the number of CPUs in die 0.\n\nWARNING: CPU: 9 PID: 7257 at uncore.c:1157 uncore_pci_pmu_register+0x136/0x160 [intel_uncore]\n\nCurrently, the discovery table continues to be parsed even if all CPUs\nin the associated die are offline.  This can lead to an array overflow\nat \"pmu->boxes[die] = box\" in uncore_pci_pmu_register(), which may\ntrigger the warning above or cause other issues."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/x86/events/intel/uncore_discovery.c"],"versions":[{"version":"edae1f06c2cda41edffc93de6aedc8ba8dc883c3","lessThan":"cfab2c817d2e7e0bee98d66850246ce842ed5f18","status":"affected","versionType":"git"},{"version":"edae1f06c2cda41edffc93de6aedc8ba8dc883c3","lessThan":"6cfc187d85f18f976d0fe527d4c6f6171542cc19","status":"affected","versionType":"git"},{"version":"edae1f06c2cda41edffc93de6aedc8ba8dc883c3","lessThan":"f34feda8e0c9535fee3f8870ce8bab53c2798f71","status":"affected","versionType":"git"},{"version":"edae1f06c2cda41edffc93de6aedc8ba8dc883c3","lessThan":"7a2cb02437d92ed14fe494d8994056d5bd2c72b4","status":"affected","versionType":"git"},{"version":"edae1f06c2cda41edffc93de6aedc8ba8dc883c3","lessThan":"7b568e9eba2fad89a696f22f0413d44cf4a1f892","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/x86/events/intel/uncore_discovery.c"],"versions":[{"version":"5.13","status":"affected"},{"version":"0","lessThan":"5.13","status":"unaffected","versionType":"semver"},{"version":"6.6.136","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.83","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.24","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.14","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.6.136"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.12.83"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.18.24"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.19.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"7.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/cfab2c817d2e7e0bee98d66850246ce842ed5f18"},{"url":"https://git.kernel.org/stable/c/6cfc187d85f18f976d0fe527d4c6f6171542cc19"},{"url":"https://git.kernel.org/stable/c/f34feda8e0c9535fee3f8870ce8bab53c2798f71"},{"url":"https://git.kernel.org/stable/c/7a2cb02437d92ed14fe494d8994056d5bd2c72b4"},{"url":"https://git.kernel.org/stable/c/7b568e9eba2fad89a696f22f0413d44cf4a1f892"}],"title":"perf/x86/intel/uncore: Skip discovery table for offline dies","x_generator":{"engine":"bippy-1.2.0"}}}}