In the Linux kernel, the following vulnerability has been resolved:libfs: fix get_stashed_dentry()get_stashed_dentry() tries to optimistically retrieve a stashed dentryfrom a provided location. It needs to ensure to hold rcu lock before itdereference the stashed location to prevent UAF issues. Usercu_dereference() instead of READ_ONCE() it's effectively equivalentwith some lockdep bells and whistles and it communicates clearly thatthis expects rcu protection.
No PoCs from references.
- https://github.com/fkie-cad/nvd-json-data-feeds