Detections
Analytics
CVE-2026-43079
medium
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/f34feda8e0c9535fee3f8870ce8bab53c2798f71
https://git.kernel.org/stable/c/cfab2c817d2e7e0bee98d66850246ce842ed5f18
https://git.kernel.org/stable/c/7b568e9eba2fad89a696f22f0413d44cf4a1f892
https://git.kernel.org/stable/c/7a2cb02437d92ed14fe494d8994056d5bd2c72b4
https://git.kernel.org/stable/c/6cfc187d85f18f976d0fe527d4c6f6171542cc19