linux-ext4 - Re: [PATCH 11/13] fuse: fix UAF in rcu pathwalks

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Message-ID: <CAJfpegtQ5+3Fn8gk_4o3uW6SEotZqy6pPxG3kRh8z-pfiF48ow@mail.gmail.com>
Date: Tue, 5 Mar 2024 13:43:31 +0100
From: Miklos Szeredi <miklos@...redi.hu>
To: Amir Goldstein <amir73il@...il.com>
Cc: Christian Brauner <brauner@...nel.org>, Al Viro <viro@...iv.linux.org.uk>, 
	linux-fsdevel@...r.kernel.org, Linus Torvalds <torvalds@...ux-foundation.org>, 
	linux-ext4@...r.kernel.org, linux-nfs@...r.kernel.org, 
	linux-cifs@...r.kernel.org
Subject: Re: [PATCH 11/13] fuse: fix UAF in rcu pathwalks

On Mon, 4 Mar 2024 at 15:36, Amir Goldstein <amir73il@...il.com> wrote:

> Note that fuse_backing_files_free() calls
> fuse_backing_id_free() => fuse_backing_free() => kfree_rcu()
>
> Should we move fuse_backing_files_free() into
> fuse_conn_put() above fuse_dax_conn_free()?
>
> That will avoid the merge conflict and still be correct. no?

Looks like a good cleanup.

Force-pushed to fuse.git#for-next.

Thanks,
Miklos