Re: [syzbot] [fs?] WARNING in copy_mnt_ns

[syzbot]

Hello,

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

Reported-by: syzbot+e0f8855a87443d6a2413@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+e0f8855a87443d6a2413@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         7f707257 Merge tag 'kbuild-6.18-1' of git://git.kernel..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1190c92f980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=f9d13d0fd373120a
dashboard link: https://syzkaller.appspot.com/bug?extid=e0f8855a87443d6a2413
compiler:       Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
patch:          https://syzkaller.appspot.com/x/patch.diff?x=1137e092580000

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