In the Linux kernel, the following vulnerability has been resolved: media: chips-media: wave5: Release m2m_ctx after Instance Removed from List Possible use after free if IRQ thread manages to obtain spinlock between m2m_ctx release and wave5_release function removing stream instance from list of active instances. The IRQ thread looks for the m2m_ctx which is freed so null pointer dereference occurs.
https://git.kernel.org/stable/c/7cdbd7bb21949a8fda10c7104a2b12ee363cbf5c
https://git.kernel.org/stable/c/04cda0b5c4ca3f61cbc86e41ead3c462c8cfd659