CVE-2026-23014
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedJan 28, 2026
First seenJan 28, 2026
How to fix
Update
- linux linux_kernel6.18, 6.18.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.17.8 ≤ v < 6.18, 6.18.1 ≤ v < 6.18.6, 6.18, 6.19 | 6.18, 6.18.6 |
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