CVE-2026-31782

Published: May 1, 2026

Modified: May 11, 2026

PUBLISHED

CVSS v3.1

7.8

HIGH

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.

Vendor	Product	Versions
Linux	Linux	affected `ec980e4facef8110f6fce27e5b6344660117f01f - < e435a30ca6fe14c9611b1fc731c98a6d28410247` affected `ec980e4facef8110f6fce27e5b6344660117f01f - < bfee04838f636d064bc92075c65c95f739003804` affected `ec980e4facef8110f6fce27e5b6344660117f01f - < dbde07f06226438cd2cf1179745fa1bec5d8914a`
Linux	Linux	affected `6.16` unaffected `0 - < 6.16` unaffected `6.18.22 - <= 6.18.` unaffected `6.19.12 - <= 6.19.` unaffected `7.0 - <= *`

CVSS v3.1 Details

CVSS v3.1 Vector

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

References

https://git.kernel.org/stable/c/e435a30ca6fe14c9611b1fc731c98a6d28410247

https://git.kernel.org/stable/c/bfee04838f636d064bc92075c65c95f739003804

https://git.kernel.org/stable/c/dbde07f06226438cd2cf1179745fa1bec5d8914a

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CVE-2026-31782

Description

Affected Products

CVSS v3.1 Details

References