CVE-2025-39914

Name of the Vulnerable Software and Affected Versions Linux kernel versions 6.14.0-rc5 and earlier

Description The Linux kernel tracing subsystem contained a flaw where a warning message was triggered during chunk allocation failures within the trace pid write function. This issue was identified through Syzkaller testing, which induced a fault injection leading to a warning during tracepoint addition. Specifically, the issue arises when a fault is injected during the allocation of memory for the trace pid list, potentially causing a double registration of the same tracepoint. This occurs when the system is under stress and does not necessarily indicate a crash, but the warning message was considered undesirable. The root cause is a lack of failure handling in the trace pid list set function.

Recommendations Update to a newer version of the Linux kernel that includes the fix for this issue.