From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f71.google.com (mail-io1-f71.google.com [209.85.166.71]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 838751CD13 for ; Thu, 25 Jul 2024 17:32:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.71 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721928726; cv=none; b=XzC1DFGcB7N/5Hj4pqR+CZCL+5LBEC6tITA5ak4gHWXOQ5ix/koDWxWyLGX9UNbrnRW35jBa07oby7kJrbvOBQvTcGRomRHiOn9eLIZ/+KBMu1WWf5X9BgaYuDefzycCId91T5XacxddBFSZxfd4VXrWK3GGHUDKiIUrttJox80= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721928726; c=relaxed/simple; bh=onjRvS+axWe8Q4FDhAZ0mLsXnu4JnCZDDvya23Fdmfo=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=NgsSoMV4pVOrdakjW0KlYahU5EemA8m/cIMH7w2Cpty8g4fcBoNqeCB/f147Bd+W0ij4RjHMesnM37cxssZ1uAc+LVSF5UA1BuoncK8aFZJOhofBbuxJDhj4YMXwbGel5poT0ExMKuE0ApGpoMXPzxGEXg0oE7Fz3dwQ8L8E7oI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.71 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f71.google.com with SMTP id ca18e2360f4ac-7f66b3d69a8so49885139f.2 for ; Thu, 25 Jul 2024 10:32:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721928723; x=1722533523; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=yInUmJZ2N1yq4ZyQvECJY6v59tbe4OHDKEmU4VskWGc=; b=dMRaCKCYFaqBXwt2EapQd8YZCFUYLrL2jOOE6dtVrd6zptREYxXqf6tUCehZCm4HR1 5ElWON7fGR/+F4n3Y5x4G404t+4nvJTFqqYZsrxHfzJkOMLLIW3ibLLyAeHfsMSOrhtm QjDFqCF0qmlCnjHXyXUoJbnCD1vq5flQQkRmJ3mttmJig+VEiXATYki6oLjooREhD/+x 2MJt4wkmN118r2z1pkbmoOvk7sSdwIoDDCHlAqB0/36uE0PyCOGMRZhCEuBmgGgQUQEl jAaQS10jlMAaPMvbDpnNGwCrhyHwG8skfeZYQ9/MIRQlDsH2PpxCs40TYQG/+palBnLy f/FA== X-Forwarded-Encrypted: i=1; AJvYcCWMre1IVAJ59wvjlKe6DgZTvij13W2BhpChA77MLazZw3IeiXpUD/it+MWu7S9vAq6OrkJVrUPdQkNpxIt0ZEFFmXrOWIv+Mec= X-Gm-Message-State: AOJu0YyZz8p14idJ780oh3m4miwJEG6HdfwMo9lyWzcqkS9uX9Z7f+d4 l4a+kFnStpNpQVK6V2sZomNQ2Gtx2DQzh+3ZbbUAsWvqaFTYV/BizY8j+21X/sr4e3x/I0bSACo oHVEsPIUMg9GhQxuBVFnA+lj94ksR3d0XoMNKiEZQB6a2lXx2RC0X0Xs= X-Google-Smtp-Source: AGHT+IEZMQleCE7wlx5bJHfXzkZuvMlL5wDNUObSSqLZA3kjVvIMzHAlAX10J/+9pI1+SFC0nMzEqu5S71REENSCp1jQ5+9CdMS6 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:4120:b0:4c0:9a3e:c24d with SMTP id 8926c6da1cb9f-4c29b6da7acmr195043173.0.1721928723594; Thu, 25 Jul 2024 10:32:03 -0700 (PDT) Date: Thu, 25 Jul 2024 10:32:03 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000e60a6b061e15c55b@google.com> Subject: Re: [syzbot] [io-uring?] KMSAN: uninit-value in io_req_task_work_add_remote From: syzbot To: asml.silence@gmail.com, axboe@kernel.dk, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by: syzbot+82609b8937a4458106ca@syzkaller.appspotmail.com Tested-by: syzbot+82609b8937a4458106ca@syzkaller.appspotmail.com Tested on: commit: 0db4618e io_uring/msg_ring: fix uninitialized use of t.. git tree: git://git.kernel.dk/linux io_uring-6.11 console output: https://syzkaller.appspot.com/x/log.txt?x=11879ae3980000 kernel config: https://syzkaller.appspot.com/x/.config?x=f80e9475fcd20eb6 dashboard link: https://syzkaller.appspot.com/bug?extid=82609b8937a4458106ca compiler: Debian clang version 15.0.6, 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.