linux-kernel - Re: [syzbot] [comedi?] UBSAN: shift-out-of-bounds in aio_iiro_16

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Message-ID: <68d888cf.050a0220.25d7ab.0432.GAE@google.com>
Date: Sat, 27 Sep 2025 18:01:03 -0700
From: syzbot <syzbot+f1bb7e4ea47ea12b535c@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com, 
	xandfury@...il.com
Subject: Re: [syzbot] [comedi?] UBSAN: shift-out-of-bounds in aio_iiro_16_attach

Hello,

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

Reported-by: syzbot+f1bb7e4ea47ea12b535c@...kaller.appspotmail.com
Tested-by: syzbot+f1bb7e4ea47ea12b535c@...kaller.appspotmail.com

Tested on:

commit:         66acb158 comedi: aio_iiro_16: Fix bit shift out of bou..
git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=156472e2580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=14a96f8b241aaa26
dashboard link: https://syzkaller.appspot.com/bug?extid=f1bb7e4ea47ea12b535c
compiler:       gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40

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