linux-kernel - Re: [syzbot] [reiserfs?] possible deadlock in reiserfs_dirty

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Message-ID: <000000000000a8d8e7060977b741@google.com>
Date:   Mon, 06 Nov 2023 00:34:07 -0800
From:   syzbot <syzbot+c319bb5b1014113a92cf@...kaller.appspotmail.com>
To:     hdanton@...a.com, linux-fsdevel@...r.kernel.org,
        linux-kernel@...r.kernel.org, paul@...l-moore.com,
        reiserfs-devel@...r.kernel.org, roberto.sassu@...wei.com,
        syzkaller-bugs@...glegroups.com, syzkaller@...glegroups.com
Subject: Re: [syzbot] [reiserfs?] possible deadlock in reiserfs_dirty_inode

syzbot has bisected this issue to:

commit d82dcd9e21b77d338dc4875f3d4111f0db314a7c
Author: Roberto Sassu <roberto.sassu@...wei.com>
Date:   Fri Mar 31 12:32:18 2023 +0000

    reiserfs: Add security prefix to xattr name in reiserfs_security_write()

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=14d0b787680000
start commit:   90b0c2b2edd1 Merge tag 'pinctrl-v6.7-1' of git://git.kerne..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=16d0b787680000
console output: https://syzkaller.appspot.com/x/log.txt?x=12d0b787680000
kernel config:  https://syzkaller.appspot.com/x/.config?x=93ac5233c138249e
dashboard link: https://syzkaller.appspot.com/bug?extid=c319bb5b1014113a92cf
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=113f3717680000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=154985ef680000

Reported-by: syzbot+c319bb5b1014113a92cf@...kaller.appspotmail.com
Fixes: d82dcd9e21b7 ("reiserfs: Add security prefix to xattr name in reiserfs_security_write()")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection