[PATCH] afs: Fix potential null pointer dereference in afs_put_server

[Christian Brauner]

On Tue, 23 Sep 2025 15:51:04 +0800, Zhen Ni wrote:
> afs_put_server() accessed server->debug_id before the NULL check, which
> could lead to a null pointer dereference. Move the debug_id assignment,
> ensuring we never dereference a NULL server pointer.
> 
> 

Applied to the vfs.fixes branch of the vfs/vfs.git tree.
Patches in the vfs.fixes branch should appear in linux-next soon.

Please report any outstanding bugs that were missed during review in a
new review to the original patch series allowing us to drop it.

It's encouraged to provide Acked-bys and Reviewed-bys even though the
patch has now been applied. If possible patch trailers will be updated.

Note that commit hashes shown below are subject to change due to rebase,
trailer updates or similar. If in doubt, please check the listed branch.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git
branch: vfs.fixes

[1/1] afs: Fix potential null pointer dereference in afs_put_server
      https://git.kernel.org/vfs/vfs/c/9158c6bb2451