Riskcovery

CVE-2026-23014

perf: Ensure swevent hrtimer is properly destroyed

State
Published
Severity
7.8 High
Published
Jan 28, 2026
Updated
Aug 5, 2026
Reserved
Jan 13, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

perf: Ensure swevent hrtimer is properly destroyed

With the change to hrtimer_try_to_cancel() in perf_swevent_cancel_hrtimer() it appears possible for the hrtimer to still be active by the time the event gets freed.

Make sure the event does a full hrtimer_cancel() on the free path by installing a perf_event::destroy handler.

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • eb3182ef0405ff2f6668fd3e5ff9883f60ce8801 to before deee9dfb111ab00f9dfd46c0c7e36656b80f5235Affected
  • eb3182ef0405ff2f6668fd3e5ff9883f60ce8801 to before ff5860f5088e9076ebcccf05a6ca709d5935cfa9Affected
  • 6b8c512811644cf2f5eaf6f44e928683c54127f0Affected
  • 6.17.8 to before 6.18Affected
LinuxLinux
  • 6.18Affected
  • before 6.18Not affected
  • 6.18.6 through 6.18.*Not affected
  • 6.19 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.