Re: [syzbot] [ocfs2?] KASAN: slab-use-after-free Read in ocfs2_reserve_suballoc_bits

[syzbot]

syzbot suspects this issue was fixed by commit:

commit e1c70505ee8158c1108340d9cd67182ade93af4a
Author: Dmitry Antipov <dmantipov@xxxxxxxxx>
Date:   Thu Oct 30 15:30:02 2025 +0000

    ocfs2: add extra consistency checks for chain allocator dinodes

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=140a0852580000
start commit:   36c254515dc6 Merge tag 'powerpc-6.12-4' of git://git.kerne..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=7a3fccdd0bb995
dashboard link: https://syzkaller.appspot.com/bug?extid=af14efe17dfa46173239
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=13444727980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11861440580000

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

#syz fix: ocfs2: add extra consistency checks for chain allocator dinodes

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