Re: [syzbot] [ocfs2?] [ext4?] WARNING in __jbd2_log_wait_for_space

From: syzbot

Date: Tue Dec 23 2025 - 19:32:02 EST


syzbot suspects this issue was fixed by commit:

commit 93ce0ff117b0c468961d7c296a03ad57e1e8da9f
Author: Deepanshu Kartikey <kartikey406@xxxxxxxxx>
Date: Thu Oct 30 15:30:03 2025 +0000

ocfs2: validate cl_bpc in allocator inodes to prevent divide-by-zero

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11b4ef1a580000
start commit: 63676eefb7a0 Merge tag 'sched_ext-for-6.13-rc5-fixes' of g..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=ba7cde9482d6bb6
dashboard link: https://syzkaller.appspot.com/bug?extid=04ae2c9e709a347f1a81
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15c678b0580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=112bcedf980000

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

#syz fix: ocfs2: validate cl_bpc in allocator inodes to prevent divide-by-zero

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