linux-kernel - Re: [syzbot] [bcachefs?] UBSAN: shift-out-of-bounds in __bch2_bkey

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Message-ID: <0000000000005a730f0617c5cc76@google.com>
Date: Mon, 06 May 2024 02:36:04 -0700
From: syzbot <syzbot+ae4dc916da3ce51f284f@...kaller.appspotmail.com>
To: bfoster@...hat.com, kent.overstreet@...ux.dev, 
	linux-bcachefs@...r.kernel.org, linux-fsdevel@...r.kernel.org, 
	linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [bcachefs?] UBSAN: shift-out-of-bounds in __bch2_bkey_invalid

syzbot has bisected this issue to:

commit d789e9a7d5e2799f4d5425b0b620210d2fcad529
Author: Kent Overstreet <kent.overstreet@...ux.dev>
Date:   Sun Apr 14 03:59:28 2024 +0000

    bcachefs: Interior known are required to have known key types

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1070e9df180000
start commit:   b9158815de52 Merge tag 'char-misc-6.9-rc7' of git://git.ke..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=1270e9df180000
console output: https://syzkaller.appspot.com/x/log.txt?x=1470e9df180000
kernel config:  https://syzkaller.appspot.com/x/.config?x=d2f00edef461175
dashboard link: https://syzkaller.appspot.com/bug?extid=ae4dc916da3ce51f284f
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=11a910c4980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=15490b54980000

Reported-by: syzbot+ae4dc916da3ce51f284f@...kaller.appspotmail.com
Fixes: d789e9a7d5e2 ("bcachefs: Interior known are required to have known key types")

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