CVE-2022-49316 Information

Description

In the Linux kernel the following vulnerability has been resolved:

NFSv4: Don’t hold the layoutget locks across multiple RPC calls

When doing layoutget as part of the open() compound we have to be careful to release the layout locks before we can call any further RPC calls such as setattr(). The reason is that those calls could trigger a recall which could deadlock.

Reference

https://git.kernel.org/stable/c/08d7a26d115cc7892668baa9750f64bd8baca29b https://git.kernel.org/stable/c/0ee5b9644f06b4d3cdcd9544f43f63312e425a4c https://git.kernel.org/stable/c/6949493884fe88500de4af182588e071cf1544ee https://git.kernel.org/stable/c/6b3fc1496e7227cd6a39a80bbfb7588ef7c7a010 https://git.kernel.org/stable/c/a2b3be930e79cc5d9d829f158e31172b2043f0cd https://git.kernel.org/stable/c/d4c2a041ed3ba114502d5ed6ace5b1a48d637a8e https://git.kernel.org/stable/c/ea759ae0a9ae5acee677d722129710ac89cc59c1