CVE-2026-98790perf: Fix race between perf_event_exit_task() and perf_pending_task()
Updated under an hour ago ()
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In the Linux kernel, the following vulnerability has been resolved: perf: Fix race between perf_event_exit_task() and perf_pending_task() A race condition exists between perf_event_exit_task() and perf_pending_task() during begin_new_exec(). During begin_new_exec(), perf_event_exit_task() may be called, and the PF_EXITING flag is not set on task. So perf_sigtrap() continues to execute and triggers WARN_ON_ONCE(event->ctx->task != current). Since both task exit and exec paths can call perf_event_exit_task() which sets ctx->task to TASK_TOMBSTONE, fix this by explicitly checking if event->ctx->task equals TASK_TOMBSTONE and dropping the redundant PF_EXITING check.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 18, 2026
- First seen by InfoSec Signals
- Oct 18, 2026
Affected products
Linux Linux linux:linux (from the name) | from 97ba62b278674293762c3d91f724f1bb922f04e0 before 672b8a9ce8f51b991481dfde26fba5cc4340a91a; from 97ba62b278674293762c3d91f724f1bb922f04e0 before 524063fea29f8a841e49927ea7a8085194ad3ec2; 97ba62b278674293762c3d91f724f1bb922f04e0 builds before 81e61e3f8befa1bae3ec8e779d8ada5e5e362c21; from 97ba62b278674293762c3d91f724f1bb922f04e0 before ffb684f2aa141eeb0caa6308422e7e05d1ded7c4 | CNA record |
References
- https://git.kernel.org/stable/c/672b8a9ce8f51b991481dfde26fba5cc4340a91a
- https://git.kernel.org/stable/c/524063fea29f8a841e49927ea7a8085194ad3ec2
- https://git.kernel.org/stable/c/81e61e3f8befa1bae3ec8e779d8ada5e5e362c21
- https://git.kernel.org/stable/c/ffb684f2aa141eeb0caa6308422e7e05d1ded7c4
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.