CVE-2024-41935 Information

Description

In the Linux kernel the following vulnerability has been resolved:

f2fs: fix to shrink read extent node in batches

We use rwlock to protect core structure data of extent tree during its shrink however if there is a huge number of extent nodes in extent tree during shrink of extent tree it may hold rwlock for a very long time which may trigger kernel hang issue.

This patch fixes to shrink read extent node in batches so that critical region of the rwlock can be shrunk to avoid its extreme long time hold.

Reference

https://git.kernel.org/stable/c/295b50e95e900da31ff237e46e04525fa799b2cf https://git.kernel.org/stable/c/3fc5d5a182f6a1f8bd4dc775feb54c369dd2c343 https://git.kernel.org/stable/c/924f7dd1e832e4e4530d14711db223d2803f7b61