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CVE-2026-23271

HIGH CVSS: 7.8 Published: 2026-03-20 Modified: 2026-07-14

Description

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 Platforms

Linux Linux Kernel

Weakness Type

CWE-362

References