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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.13, < 5.15.209 |
References
- https://git.kernel.org/stable/c/6cfc187d85f18f976d0fe527d4c6f6171542cc19Patch
- https://git.kernel.org/stable/c/7a2cb02437d92ed14fe494d8994056d5bd2c72b4Patch
- https://git.kernel.org/stable/c/7b568e9eba2fad89a696f22f0413d44cf4a1f892Patch
- https://git.kernel.org/stable/c/cfab2c817d2e7e0bee98d66850246ce842ed5f18Patch
- https://git.kernel.org/stable/c/d18da11a5e21eac7651c8897e5e0908f6c2bc9dePatch
- https://git.kernel.org/stable/c/dfcba8c8674cead6c88a2f269b71aa4efd3d384aPatch
- https://git.kernel.org/stable/c/f34feda8e0c9535fee3f8870ce8bab53c2798f71Patch
FAQ
What is CVE-2026-43079?
CVE-2026-43079 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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?
CVE-2026-43079 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-43079?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.