Re: [syzbot] [bcachefs?] KASAN: use-after-free Read in bch2_check_dirents

[syzbot]

syzbot has bisected this issue to:

commit d97de0d017cde0d442c3d144b4f969f43064cc0f
Author: Kent Overstreet <kent.overstreet@xxxxxxxxx>
Date:   Tue Aug 13 01:31:25 2024 +0000

    bcachefs: Make bkey_fsck_err() a wrapper around fsck_err()

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=11a09330580000
start commit:   cfaaa7d010d1 Merge tag 'net-6.12-rc8' of git://git.kernel...
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=13a09330580000
console output: https://syzkaller.appspot.com/x/log.txt?x=15a09330580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=1503500c6f615d24
dashboard link: https://syzkaller.appspot.com/bug?extid=fea0322882c0cba65f11
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=112b1130580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1256ab5f980000

Reported-by: syzbot+fea0322882c0cba65f11@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: d97de0d017cd ("bcachefs: Make bkey_fsck_err() a wrapper around fsck_err()")

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