CVE-2026-23271

Description

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

Risk Information

Base Score

7.8

MODERATE

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score

Exploitation Probability

0.013

Associated Vulnerability

No records found

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234