CVE-2024-46801 Information

Description

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.

Reference

https://git.kernel.org/stable/c/03e2a1209a83a380df34a72f7d6d1bc6c74132c7 https://git.kernel.org/stable/c/4e32c25b58b945f976435bbe51f39b32d714052e