# CVE-2026-23014: linux: In the Linux kernel, the following vulnerability has been resolved:  perf: Ensure swevent hrtimer is properly destroy...

CVE-2026-23014 is fixed in linux on 1 platform by DEBIAN-CVE-2026-23014 (version 6.18.8-1), released January 28, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-23014
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0013
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 28, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 6.18.8-1 | [DEBIAN-CVE-2026-23014](https://patchblox.com/security/data/fix/linux/debian-cve-2026-23014.md) | Jan 28, 2026 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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