CVE-2026-23014
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | eb3182ef0405ff2f6668fd3e5ff9883f60ce8801 < deee9dfb111ab00f9dfd46c0c7e36656b80f5235 | affected |
| Linux | Linux | eb3182ef0405ff2f6668fd3e5ff9883f60ce8801 < ff5860f5088e9076ebcccf05a6ca709d5935cfa9 | affected |
| Linux | Linux | 6b8c512811644cf2f5eaf6f44e928683c54127f0 | affected |
| Linux | Linux | 6.17.8 < 6.18 | affected |
| Linux | Linux | 6.18 | affected |
| Linux | Linux | 0 < 6.18 | unaffected |
| Linux | Linux | 6.18.6 <= 6.18.* | unaffected |
| Linux | Linux | 6.19 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/deee9dfb111ab00f9dfd46c0c7e36656b80f5235
- https://git.kernel.org/stable/c/ff5860f5088e9076ebcccf05a6ca709d5935cfa9
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