CVE-2026-31782

HIGH EPSS 2.7%
Published May 1, 20261mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published May 1, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: perf/x86: Fix potential bad container_of in intel_pmu_hw_config Auto counter reload may have a group of events with software events present within it. The software event PMU isn't the x86_hybrid_pmu and a container_of operation in intel_pmu_set_acr_caused_constr (via the hybrid helper) could cause out of bound memory reads. Avoid this by guarding the call to intel_pmu_set_acr_caused_constr with an is_x86_event check.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
2.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel*≥6.16.1  –  <6.18.22
linuxlinux_kernel*≥6.19  –  <6.19.12
linuxlinux_kernel6.16any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 3

  • git.kernel.org https://git.kernel.org/stable/c/bfee04838f636d064bc92075c65c95f739003804
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dbde07f06226438cd2cf1179745fa1bec5d8914a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e435a30ca6fe14c9611b1fc731c98a6d28410247
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/bfee04838f636d064bc92075c65c95f739003804
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dbde07f06226438cd2cf1179745fa1bec5d8914a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e435a30ca6fe14c9611b1fc731c98a6d28410247
    Patch