linux-ext4 - Re: [syzbot] [ext4?] WARNING in __ext4fs

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Date:   Wed, 10 May 2023 23:15:26 -0700
From:   syzbot <syzbot+344aaa8697ebd232bfc8@...kaller.appspotmail.com>
To:     adilger.kernel@...ger.ca, linux-ext4@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com, tytso@....edu
Subject: Re: [syzbot] [ext4?] WARNING in __ext4fs_dirhash

syzbot has bisected this issue to:

commit 08dd966cfd2bef467acd1835ae10c32356037bc3
Author: Theodore Ts'o <tytso@....edu>
Date:   Sat May 6 15:59:13 2023 +0000

    ext4: improve error handling from ext4_dirhash()

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=15ecb2fa280000
start commit:   578215f3e21c Add linux-next specific files for 20230510
git tree:       linux-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=17ecb2fa280000
console output: https://syzkaller.appspot.com/x/log.txt?x=13ecb2fa280000
kernel config:  https://syzkaller.appspot.com/x/.config?x=bb5a64fc61c29c5f
dashboard link: https://syzkaller.appspot.com/bug?extid=344aaa8697ebd232bfc8
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=13b80e32280000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=113f582a280000

Reported-by: syzbot+344aaa8697ebd232bfc8@...kaller.appspotmail.com
Fixes: 08dd966cfd2b ("ext4: improve error handling from ext4_dirhash()")

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