Re: [syzbot] [v9fs?] UBSAN: shift-out-of-bounds in v9fs_get_tree

[syzbot]

Hello,

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

Reported-by: syzbot+30c83da54e948f6e9436@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+30c83da54e948f6e9436@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         26285807 Add linux-next specific files for 20250926
git tree:       linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=15090334580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=997066872b7941b6
dashboard link: https://syzkaller.appspot.com/bug?extid=30c83da54e948f6e9436
compiler:       Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8

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