syzbot has bisected this issue to: commit d789e9a7d5e2799f4d5425b0b620210d2fcad529 Author: Kent Overstreet <kent.overstreet@xxxxxxxxx> 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@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: d789e9a7d5e2 ("bcachefs: Interior known are required to have known key types") For information about bisection process see: https://goo.gl/tpsmEJ#bisection