Linux kernel tracing histogram miscounts synthetic event references
A Linux kernel flaw could make systems freeze or misbehave.
Summary
The Linux kernel's tracing histogram code mistakes a non-synthetic event with the same basename for a synthetic event and changes its reference count wrongly. A synthetic event still in use can then be freed, which may make the system unstable.
What to do
Check that your kernel is newer than the fixed version for its branch (6.1.191, 6.6.161, 6.12.115, 6.18.60, 7.2.14, 7.3.1 or later) and read your distribution's security advisory.
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