Re: [syzbot] [crypto?] KMSAN: uninit-value in poly1305_blocks

[syzbot]

Hello,

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

Reported-by: syzbot+01fcd39a0d90cdb0e3df@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+01fcd39a0d90cdb0e3df@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit:         6548d364 Merge tag 'cgroup-for-6.18-rc2-fixes' of git:..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1266fde2580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=bbd3e7f3c2e28265
dashboard link: https://syzkaller.appspot.com/bug?extid=01fcd39a0d90cdb0e3df
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=13b58e7c580000

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