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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.

PUBLISHED Reserved 2026-03-09 | Published 2026-05-01 | Updated 2026-05-03 | Assigner Linux




HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Product status

Default status
unaffected

ec980e4facef8110f6fce27e5b6344660117f01f (git) before e435a30ca6fe14c9611b1fc731c98a6d28410247
affected

ec980e4facef8110f6fce27e5b6344660117f01f (git) before bfee04838f636d064bc92075c65c95f739003804
affected

ec980e4facef8110f6fce27e5b6344660117f01f (git) before dbde07f06226438cd2cf1179745fa1bec5d8914a
affected

Default status
affected

6.16
affected

Any version before 6.16
unaffected

6.18.22 (semver)
unaffected

6.19.12 (semver)
unaffected

7.0 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/e435a30ca6fe14c9611b1fc731c98a6d28410247

git.kernel.org/...c/bfee04838f636d064bc92075c65c95f739003804

git.kernel.org/...c/dbde07f06226438cd2cf1179745fa1bec5d8914a

cve.org (CVE-2026-31782)

nvd.nist.gov (CVE-2026-31782)

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