CVE-2026-99238: tracing: Hold trace_types_lock when updating modules in persistent instances

In the Linux kernel, the following vulnerability has been resolved:

tracing: Hold tracetypeslock when updating modules in persistent instances

tracemodulerecord() walks ftracetracearrays from the module notifier without tracetypeslock. 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 tracearray.