In the Linux kernel, the following vulnerability has been resolved:
tracing/osnoise: Call synchronize_rcu() when unregistering
This ensures that any RCU readers traversing the instance list have finished, before releasing the reference on the tracer that the instance points to.
References
- https://git.kernel.org/stable/c/38366140dc8ee3568c7f0191d517e117963bd580
- https://git.kernel.org/stable/c/3c693635bb7b3a9b6645831a84fed2af46cdf249
- https://git.kernel.org/stable/c/dd0160a0842337f12e7694d68b184050afc6d3a4
- https://git.kernel.org/stable/c/fad36954b29592ce463254179c3043697678481f
- https://git.kernel.org/stable/c/fe58f457ad8d0a2bef4e053cfecca4b5cd266b1a