linux-kernel - Re: (subset) [PATCH 1/5] fs/filesystems: Fix potential unsigned integer underflow in fs

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Message-ID: <20250411-wanken-lohnt-e19fc787eca0@brauner>
Date: Fri, 11 Apr 2025 16:34:26 +0200
From: Christian Brauner <brauner@...nel.org>
To: Zijun Hu <zijun_hu@...oud.com>
Cc: Christian Brauner <brauner@...nel.org>,
	linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Zijun Hu <quic_zijuhu@...cinc.com>,
	Alexander Viro <viro@...iv.linux.org.uk>,
	Jan Kara <jack@...e.cz>,
	David Howells <dhowells@...hat.com>
Subject: Re: (subset) [PATCH 1/5] fs/filesystems: Fix potential unsigned integer underflow in fs_name()

On Thu, 10 Apr 2025 19:45:27 +0800, Zijun Hu wrote:
> fs_name() has @index as unsigned int, so there is underflow risk for
> operation '@...ex--'.
> 
> Fix by breaking the for loop when '@...ex == 0' which is also more proper
> than '@...ex <= 0' for unsigned integer comparison.
> 
> 
> [...]

Applied to the vfs-6.16.misc branch of the vfs/vfs.git tree.
Patches in the vfs-6.16.misc 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-6.16.misc

[1/5] fs/filesystems: Fix potential unsigned integer underflow in fs_name()
      https://git.kernel.org/vfs/vfs/c/d319af11e9a1