Re: [syzbot] [bcachefs] KASAN: use-after-free Read in crypto_poly1305_update

[syzbot]

syzbot suspects this issue was fixed by commit:

commit d89a34b14df5c205de698c23c3950b2b947cdb97
Author: Alan Huang <mmpgouride@xxxxxxxxx>
Date:   Sat Jun 14 09:18:07 2025 +0000

    bcachefs: Move bset size check before csum check

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1722a58c580000
start commit:   2408a807bfc3 Merge tag 'vfs-6.14-rc4.fixes' of git://git.k..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=6cc40dfe827ffb85
dashboard link: https://syzkaller.appspot.com/bug?extid=d587b24799bd8c2d32f4
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=12c4f2e4580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=17e4c498580000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: bcachefs: Move bset size check before csum check

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