CVE-2026-23271

In the Linux kernel, the following vulnerability has been resolved: perf: Fix __perf_event_overflow() vs perf_remove_from_context() race Make sure that __perf_event_overflow() runs with IRQs disabled for all possible callchains. Specifically the software events can end up running it with only preemption disabled. This opens up a race vs perf_event_exit_event() and friends that will go and free various things the overflow path expects to be present, like the BPF program.

Affected products

Linux Kernel

Linux Linux Kernel

< 6.1.167, 6.6.130, 6.12.77, 6.18.17, 6.19.7, 7.0

CVSS 3.1

7.8 HIGH

EPSS

0.1% (1th percentile)

Weakness

CWE-362

NVD status

Modified

Published

2026-03-20