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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-23271

perf: Fix __perf_event_overflow() vs perf_remove_from_context() race

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race Make sure that __perf_event_overflow() runs with IRQs disabled for all possible callchains. Specifically the software events can end up running it with only preemption disabled. This opens up a race vs perf_event_exit_event() and friends that will go and free various things the overflow path expects to be present, like the BPF program.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 592903cdcbf606a838056bae6d03fc557806c914 to < 4df1a45819e50993cb351682a6ae8e7ed2d233a0affected
  • 592903cdcbf606a838056bae6d03fc557806c914 to < 4f8d5812337871227bb2c98669a87c306a2f86efaffected
  • 592903cdcbf606a838056bae6d03fc557806c914 to < 5c48fdc4b4623533d86e279f51531a7ba212eb87affected
  • 592903cdcbf606a838056bae6d03fc557806c914 to < 3f89b61dd504c5b6711de9759e053b082f9abf12affected
  • 592903cdcbf606a838056bae6d03fc557806c914 to < bb190628fe5f2a73ba762a9972ba16c5e895f73eaffected
  • 592903cdcbf606a838056bae6d03fc557806c914 to < c9bc1753b3cc41d0e01fbca7f035258b5f4db0aeaffected

Linux Linux

Default version status: affected

  • 2.6.31affected
  • 0 to < 2.6.31unaffected
  • 6.1.167 to ≤ 6.1.*unaffected
  • 6.6.130 to ≤ 6.6.*unaffected
  • 6.12.77 to ≤ 6.12.*unaffected
  • 6.18.17 to ≤ 6.18.*unaffected
  • 6.19.7 to ≤ 6.19.*unaffected
  • 7.0 to ≤ *unaffected

References