linux-kernel - Re: [syzbot] [ext4?] [overlayfs?] WARNING in file_seek_cur_needs_f

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Message-ID: <CAJfpeguEd49YhmbsZYPgKJ4=BYpgEEhF7gnH2Cp1yRouQUUMWQ@mail.gmail.com>
Date: Tue, 8 Apr 2025 08:17:25 +0200
From: Miklos Szeredi <miklos@...redi.hu>
To: David Howells <dhowells@...hat.com>
Cc: syzbot <syzbot+4036165fc595a74b09b2@...kaller.appspotmail.com>, 
	adilger.kernel@...ger.ca, amir73il@...il.com, linux-ext4@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-unionfs@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com, tytso@....edu
Subject: Re: [syzbot] [ext4?] [overlayfs?] WARNING in file_seek_cur_needs_f_lock

On Mon, 7 Apr 2025 at 23:03, David Howells <dhowells@...hat.com> wrote:
>
> syzbot <syzbot+4036165fc595a74b09b2@...kaller.appspotmail.com> wrote:
>
> > syzbot has tested the proposed patch but the reproducer is still triggering an issue:
> > unregister_netdevice: waiting for DEV to become free
> >
> > unregister_netdevice: waiting for batadv0 to become free. Usage count = 3
>
> I've seen this in a bunch of different syzbot tests also where, as far as I
> can tell, the patch I've offered fixes the actual bug.

Which one is that?  I can't seem to find it.

Thanks,
Miklos