CVE-2026-31541

kernel: tracing: Fix trace_marker copy link list updates

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Severity

Unknown

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · April 24, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel. When a tracing instance with the copy_trace_marker option is enabled and subsequently deleted, a critical synchronization step is bypassed. This can lead to a Use-After-Free (UAF) vulnerability, which may allow a local attacker to corrupt memory, potentially leading to system instability or arbitrary code execution.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-825 · Expired Pointer Dereference