high · CVSS v3 7.8

CVE-2026-99238

In the Linux kernel, the following vulnerability has been resolved: tracing: Hold trace_types_lock when updating modules…

Description

In the Linux kernel, the following vulnerability has been resolved: tracing: Hold trace_types_lock when updating modules in persistent instances trace_module_record() walks ftrace_trace_arrays from the module notifier without trace_types_lock. A concurrent rmdir of an instance removes it from the list and frees it under that lock, so a module load or unload can walk into a freed trace_array.

Scores

Severity
high
CVSS v2
6.8
CVSS v3
7.8
CVSS v4
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EPSS
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