CVE-2026-43079

MEDIUM EPSS 2.4%
Published May 6, 20261mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 6, 2026 1mo ago
Last Modified Jun 17, 2026 2w ago

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 Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
2.4% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 13

VendorProductVersionRange
linuxlinux_kernel*≥5.13  –  <5.15.209
linuxlinux_kernel*≥5.16  –  <6.1.175
linuxlinux_kernel*≥6.2  –  <6.6.136
linuxlinux_kernel*≥6.7  –  <6.12.83
linuxlinux_kernel*≥6.13  –  <6.18.24
linuxlinux_kernel*≥6.19  –  <6.19.14
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 7

  • git.kernel.org https://git.kernel.org/stable/c/6cfc187d85f18f976d0fe527d4c6f6171542cc19
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7a2cb02437d92ed14fe494d8994056d5bd2c72b4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7b568e9eba2fad89a696f22f0413d44cf4a1f892
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cfab2c817d2e7e0bee98d66850246ce842ed5f18
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d18da11a5e21eac7651c8897e5e0908f6c2bc9de
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dfcba8c8674cead6c88a2f269b71aa4efd3d384a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f34feda8e0c9535fee3f8870ce8bab53c2798f71
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/6cfc187d85f18f976d0fe527d4c6f6171542cc19
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7a2cb02437d92ed14fe494d8994056d5bd2c72b4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7b568e9eba2fad89a696f22f0413d44cf4a1f892
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/cfab2c817d2e7e0bee98d66850246ce842ed5f18
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d18da11a5e21eac7651c8897e5e0908f6c2bc9de
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dfcba8c8674cead6c88a2f269b71aa4efd3d384a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f34feda8e0c9535fee3f8870ce8bab53c2798f71
    Patch