Re: [PATCH v3] statmount: Fix the null-ptr-deref in do_statmount()

[Christian Brauner]

On Fri, 13 Feb 2026 18:30:06 +0800, Qing Wang wrote:
> If the mount is internal, it's mnt_ns will be MNT_NS_INTERNAL, which is
> defined as ERR_PTR(-EINVAL). So, in the do_statmount(), need to check ns
> of mount by IS_ERR() and return.
> 
> 

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] statmount: Fix the null-ptr-deref in do_statmount()
      https://git.kernel.org/vfs/vfs/c/81f16c9778d7