Re: [PATCH] mqueue: correct the type of ro to int

[Christian Brauner <brauner@kernel.org>]

On Thu, 04 Dec 2025 21:16:22 +0800, Edward Adam Davis wrote:
> The ro variable, being of type bool, caused the -EROFS return value from
> mnt_want_write() to be implicitly converted to 1. This prevented the file
> from being correctly acquired, thus triggering the issue reported by
> syzbot [1].
> 
> Changing the type of ro to int allows the system to correctly identify
> the reason for the file open failure.
> 
> [...]

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] mqueue: correct the type of ro to int
      https://git.kernel.org/vfs/vfs/c/1d98eeadbc10