Vulnerability Description
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. WARNING: CPU: 9 PID: 7257 at uncore.c:1157 uncore_pci_pmu_register+0x136/0x160 [intel_uncore] Currently, the discovery table continues to be parsed even if all CPUs in the associated die are offline. This can lead to an array overflow at "pmu->boxes[die] = box" in uncore_pci_pmu_register(), which may trigger the warning above or cause other issues.
References
- https://git.kernel.org/stable/c/6cfc187d85f18f976d0fe527d4c6f6171542cc19
- https://git.kernel.org/stable/c/7a2cb02437d92ed14fe494d8994056d5bd2c72b4
- https://git.kernel.org/stable/c/7b568e9eba2fad89a696f22f0413d44cf4a1f892
- https://git.kernel.org/stable/c/cfab2c817d2e7e0bee98d66850246ce842ed5f18
- https://git.kernel.org/stable/c/f34feda8e0c9535fee3f8870ce8bab53c2798f71
FAQ
What is CVE-2026-43079?
CVE-2026-43079 is a documented vulnerability. 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 boot...
How severe is CVE-2026-43079?
CVSS scoring is not yet available for CVE-2026-43079. Check NVD for updates.
Is there a patch for CVE-2026-43079?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.