linux-kernel - Re: [syzbot] [gfs2] WARNING in vfs

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Message-ID: <20231213-drehen-einquartieren-56bbdda1177e@brauner>
Date:   Wed, 13 Dec 2023 11:38:28 +0100
From:   Christian Brauner <brauner@...nel.org>
To:     xingwei lee <xrivendell7@...il.com>
Cc:     syzbot+0c64a8706d587f73409e@...kaller.appspotmail.com,
        gfs2@...ts.linux.dev, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com,
        viro@...iv.linux.org.uk
Subject: Re: [syzbot] [gfs2] WARNING in vfs_utimes

On Wed, Dec 13, 2023 at 02:35:58PM +0800, xingwei lee wrote:
> Hello, I reproduced this bug with repro.c and repro.txt since it
> relatively large please see
> https://gist.github.com/xrivendell7/b3b804bbf6d8c9930b2ba22e2dfaa6e6
> 
> Since this bug in the dashboard
> https://syzkaller.appspot.com/bug?extid=0c64a8706d587f73409e use
> kernel commit: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/?id=aed8aee11130a954356200afa3f1b8753e8a9482
> kernel config: https://syzkaller.appspot.com/text?tag=KernelConfig&x=df91a3034fe3f122
> 
> my repro.c use the seem config and it crash report like below, and
> it’s almost can make sure it the same as bug reported by syzobt.

Uh, can you reproduce this on mainline?
I so far fail to even with your repro.