CVE-2026-23271

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A race condition exists between the perf event overflow() function and perf remove from context(). The issue occurs because perf event overflow() may run with only preemption disabled instead of interrupts (IRQs) disabled for all possible callchains, particularly for software events. This allows a race condition against perf event exit event() and related functions, which can free resources, such as the BPF program, that the overflow path expects to be present.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.