CVE-2026-43079 : faille moyenne linux linux kernel (CVSS 5.5)

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.

Sévérité

Moyenne (CVSS 5.5)

Vecteur CVSS

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation active

Non signalée par la CISA

Publication

6 mai 2026

Dernière mise à jour

17 juin 2026

• linux linux kernel

• Fiche CVE-2026-43079 sur le NVD (NIST)
• git.kernel.org/stable/c/6cfc187d85f18f976d0fe527d4c6f6171542c…
• git.kernel.org/stable/c/7a2cb02437d92ed14fe494d8994056d5bd2c7…
• git.kernel.org/stable/c/7b568e9eba2fad89a696f22f0413d44cf4a1f…
• git.kernel.org/stable/c/cfab2c817d2e7e0bee98d66850246ce842ed5…
• git.kernel.org/stable/c/d18da11a5e21eac7651c8897e5e0908f6c2bc…
• git.kernel.org/stable/c/dfcba8c8674cead6c88a2f269b71aa4efd3d3…
• git.kernel.org/stable/c/f34feda8e0c9535fee3f8870ce8bab53c2798…