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.
Affected products
linux: linux kernel
References7
- git.kernel.org/stable/c/6cfc187d85f18f976d0fe527d4c6f6171542cc19 Patch
- git.kernel.org/stable/c/7a2cb02437d92ed14fe494d8994056d5bd2c72b4 Patch
- git.kernel.org/stable/c/7b568e9eba2fad89a696f22f0413d44cf4a1f892 Patch
- git.kernel.org/stable/c/cfab2c817d2e7e0bee98d66850246ce842ed5f18 Patch
- git.kernel.org/stable/c/d18da11a5e21eac7651c8897e5e0908f6c2bc9de Patch
- git.kernel.org/stable/c/dfcba8c8674cead6c88a2f269b71aa4efd3d384a Patch
- git.kernel.org/stable/c/f34feda8e0c9535fee3f8870ce8bab53c2798f71 Patch
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 2 · as of 13 November 2026
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