Re: [syzbot] [block?] UBSAN: shift-out-of-bounds in null_process_zoned_cmd

[syzbot]

Hello,

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

Reported-by: syzbot+abd6a8dca0f2b7726060@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+abd6a8dca0f2b7726060@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         069f4aad Merge tag 'md-7.3-20260809' of https://git.ke..
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=144b1901580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=acc0a882b963ae23
dashboard link: https://syzkaller.appspot.com/bug?extid=abd6a8dca0f2b7726060
compiler:       gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44

Note: no patches were applied.
Note: testing is done by a robot and is best-effort only.