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Message-ID: <CACT4Y+ZSF6DEshmwYy5pKOexADrGXAj0=_2OyGcWXqJTYQgoeQ@mail.gmail.com>
Date: Sun, 6 Nov 2022 15:24:21 -0800
From: Dmitry Vyukov <dvyukov@...gle.com>
To: syzbot <syzbot+4998f18bcd5fc7e40c8b@...kaller.appspotmail.com>
Cc: adilger.kernel@...ger.ca, jack@...e.cz, lczerner@...hat.com,
linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org,
syzkaller-bugs@...glegroups.com, tadeusz.struk@...aro.org,
tytso@....edu
Subject: Re: [syzbot] kernel BUG in ext4_mb_use_inode_pa
On Fri, 4 Nov 2022 at 16:15, syzbot
<syzbot+4998f18bcd5fc7e40c8b@...kaller.appspotmail.com> wrote:
>
> syzbot suspects this issue was fixed by commit:
>
> commit 4bb26f2885ac6930984ee451b952c5a6042f2c0e
> Author: Jan Kara <jack@...e.cz>
> Date: Wed Jul 27 15:57:53 2022 +0000
>
> ext4: avoid crash when inline data creation follows DIO write
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14eb2fb6880000
> start commit: 4fe89d07dcc2 Linux 6.0
> git tree: upstream
> kernel config: https://syzkaller.appspot.com/x/.config?x=48b99eaecc2b324f
> dashboard link: https://syzkaller.appspot.com/bug?extid=4998f18bcd5fc7e40c8b
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=119bc15c880000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13d97bc0880000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: ext4: avoid crash when inline data creation follows DIO write
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
Looks reasonable based on subsystem and the patch:
#syz fix: ext4: avoid crash when inline data creation follows DIO write
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