{"id":"CVE-2026-43079","summary":"perf/x86/intel/uncore: Skip discovery table for offline dies","details":"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-\u003eboxes[die] = box\" in uncore_pci_pmu_register(), which may\ntrigger the warning above or cause other issues.","modified":"2026-05-18T06:00:12.865500630Z","published":"2026-05-06T07:40:15.767Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43079.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/6cfc187d85f18f976d0fe527d4c6f6171542cc19"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7a2cb02437d92ed14fe494d8994056d5bd2c72b4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7b568e9eba2fad89a696f22f0413d44cf4a1f892"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cfab2c817d2e7e0bee98d66850246ce842ed5f18"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f34feda8e0c9535fee3f8870ce8bab53c2798f71"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43079.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43079"},{"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":"edae1f06c2cda41edffc93de6aedc8ba8dc883c3"},{"fixed":"cfab2c817d2e7e0bee98d66850246ce842ed5f18"},{"fixed":"6cfc187d85f18f976d0fe527d4c6f6171542cc19"},{"fixed":"f34feda8e0c9535fee3f8870ce8bab53c2798f71"},{"fixed":"7a2cb02437d92ed14fe494d8994056d5bd2c72b4"},{"fixed":"7b568e9eba2fad89a696f22f0413d44cf4a1f892"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43079.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.13.0"},{"fixed":"6.6.136"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.83"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.24"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.14"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43079.json"}}],"schema_version":"1.7.5"}