CVE-2024-46801

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

libfs: fix get_stashed_dentry()

get_stashed_dentry() tries to optimistically retrieve a stashed dentry

from a provided location. It needs to ensure to hold rcu lock before it

dereference the stashed location to prevent UAF issues. Use

rcu_dereference() instead of READ_ONCE() it's effectively equivalent

with some lockdep bells and whistles and it communicates clearly that

this expects rcu protection.