Re: [syzbot] [ext4?] kernel BUG in ext4_es_cache_extent (4)

[syzbot]

Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+ccf1421545dbe5caa20c@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+ccf1421545dbe5caa20c@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         4f5e8e6f et4: allow zeroout when doing written to unwr..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git dev
console output: https://syzkaller.appspot.com/x/log.txt?x=15aece5a580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=a535ad5429f72a2
dashboard link: https://syzkaller.appspot.com/bug?extid=ccf1421545dbe5caa20c
compiler:       Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=166e8e5a580000

Note: testing is done by a robot and is best-effort only.