[syzbot] [iomap?] [erofs?] WARNING in iomap_iter (5)

[syzbot]

syzbot has bisected this issue to:

commit 1d191b4ca51d73699cb127386b95ac152af2b930
Author: Gao Xiang <hsiangkao at linux.alibaba.com>
Date:   Mon Mar 10 09:54:58 2025 +0000

    erofs: implement encoded extent metadata

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=1352dd70580000
start commit:   02adc1490e6d Merge tag 'spi-fix-v6.16-rc1' of git://git.ke..
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=10d2dd70580000
console output: https://syzkaller.appspot.com/x/log.txt?x=1752dd70580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=162faeb2d1eaefb4
dashboard link: https://syzkaller.appspot.com/bug?extid=d8f000c609f05f52d9b5
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=115f9e0c580000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1688b10c580000

Reported-by: syzbot+d8f000c609f05f52d9b5 at syzkaller.appspotmail.com
Fixes: 1d191b4ca51d ("erofs: implement encoded extent metadata")

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