CVE-2026-43079
perf/x86/intel/uncore: Skip discovery table for offline dies
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 6, 2026 |
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Affected Versions
Linux / Linux
edae1f06c2cda41edffc93de6aedc8ba8dc883c3 < cfab2c817d2e7e0bee98d66850246ce842ed5f18 edae1f06c2cda41edffc93de6aedc8ba8dc883c3 < 6cfc187d85f18f976d0fe527d4c6f6171542cc19 edae1f06c2cda41edffc93de6aedc8ba8dc883c3 < f34feda8e0c9535fee3f8870ce8bab53c2798f71 edae1f06c2cda41edffc93de6aedc8ba8dc883c3 < 7a2cb02437d92ed14fe494d8994056d5bd2c72b4 edae1f06c2cda41edffc93de6aedc8ba8dc883c3 < 7b568e9eba2fad89a696f22f0413d44cf4a1f892
Linux / Linux
5.13
References
git.kernel.org: https://git.kernel.org/stable/c/cfab2c817d2e7e0bee98d66850246ce842ed5f18 git.kernel.org: https://git.kernel.org/stable/c/6cfc187d85f18f976d0fe527d4c6f6171542cc19 git.kernel.org: https://git.kernel.org/stable/c/f34feda8e0c9535fee3f8870ce8bab53c2798f71 git.kernel.org: https://git.kernel.org/stable/c/7a2cb02437d92ed14fe494d8994056d5bd2c72b4 git.kernel.org: https://git.kernel.org/stable/c/7b568e9eba2fad89a696f22f0413d44cf4a1f892