linux-kernel - Re: [syzbot] [f2fs?] possible deadlock in f2fs

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Date:   Fri, 14 Jul 2023 08:11:31 -0700
From:   syzbot <syzbot+e5600587fa9cbf8e3826@...kaller.appspotmail.com>
To:     chao@...nel.org, jaegeuk@...nel.org,
        linux-f2fs-devel@...ts.sourceforge.net,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [f2fs?] possible deadlock in f2fs_getxattr

syzbot has bisected this issue to:

commit 5eda1ad1aaffdfebdecf7a164e586060a210f74f
Author: Jaegeuk Kim <jaegeuk@...nel.org>
Date:   Wed Jun 28 08:00:56 2023 +0000

    f2fs: fix deadlock in i_xattr_sem and inode page lock

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1177322aa80000
start commit:   3f01e9fed845 Merge tag 'linux-watchdog-6.5-rc2' of git://w..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1377322aa80000
console output: https://syzkaller.appspot.com/x/log.txt?x=1577322aa80000
kernel config:  https://syzkaller.appspot.com/x/.config?x=29fd3392a08741ef
dashboard link: https://syzkaller.appspot.com/bug?extid=e5600587fa9cbf8e3826
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1336f364a80000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=130a365aa80000

Reported-by: syzbot+e5600587fa9cbf8e3826@...kaller.appspotmail.com
Fixes: 5eda1ad1aaff ("f2fs: fix deadlock in i_xattr_sem and inode page lock")

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