{"id":"CVE-2026-43079","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-43079","generatedAt":"2026-10-28T04:46:50.017Z","title":"In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/uncore: Skip discovery table for offline dies This warning can be triggered if NUMA is disabled and the system boots with fewer CPUs than the number of CPUs in die 0.","description":"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.","published":"2026-05-06T10:16:21.000Z","lastModified":"2026-06-17T10:48:54.000Z","status":"Analyzed","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":[],"affected":["linux/linux kernel"],"epss":{"score":0.00123,"percentile":0.02001,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.12%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/6cfc187d85f18f976d0fe527d4c6f6171542cc19","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7a2cb02437d92ed14fe494d8994056d5bd2c72b4","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7b568e9eba2fad89a696f22f0413d44cf4a1f892","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cfab2c817d2e7e0bee98d66850246ce842ed5f18","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d18da11a5e21eac7651c8897e5e0908f6c2bc9de","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dfcba8c8674cead6c88a2f269b71aa4efd3d384a","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f34feda8e0c9535fee3f8870ce8bab53c2798f71","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-43079","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}