From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f170.google.com (mail-pl1-f170.google.com [209.85.214.170]) (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 C527D1D545 for ; Thu, 25 Jul 2024 15:33:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.170 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721921641; cv=none; b=YmnGeKN5pVt85OafXh+N8gPbG+jxQ0PVpqbPbn5ACC5FH5siwwFFeTBdSmIpKIT6oLsQTNlPxLCQS35XUiei71sQZ6KeBXx+uCeTnak2/cgl63lMZDeBkiqJ7negy+p1j47ZF8/C8RElJFU3vw2hRm3+yOEjm9/1UCVp82Cr+go= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721921641; c=relaxed/simple; bh=hcAwhUvz7Q1/dKBeCm7fGrp1f/oik+mo9ajeMqX75l4=; h=Message-ID:Date:MIME-Version:Subject:To:References:From: In-Reply-To:Content-Type; b=iDgxHkrHh79wjfIyASeHz48opyRWu4NLzmUEPPnAOj1/oxOavdt6YsxvJdxIG34iWt+uadTLh4MbpnuISWwmN3xWSZAXLRYjJNaZ9eyI7U32TTTeyrIPypS+lw40U/JkSfWVf2wSROsDmzmd8XAjgL2jcABF9zJOi1kVUDmFCSg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk; spf=pass smtp.mailfrom=kernel.dk; dkim=pass (2048-bit key) header.d=kernel-dk.20230601.gappssmtp.com header.i=@kernel-dk.20230601.gappssmtp.com header.b=YdpecnYi; arc=none smtp.client-ip=209.85.214.170 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kernel.dk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20230601.gappssmtp.com header.i=@kernel-dk.20230601.gappssmtp.com header.b="YdpecnYi" Received: by mail-pl1-f170.google.com with SMTP id d9443c01a7336-1fc4c33e746so856405ad.2 for ; Thu, 25 Jul 2024 08:33:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20230601.gappssmtp.com; s=20230601; t=1721921638; x=1722526438; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:to:subject:user-agent:mime-version:date:message-id:from :to:cc:subject:date:message-id:reply-to; bh=g53O1snI4oPFwCnbuNKYfO5V/N74kXxNW+Iv3dJPjrc=; b=YdpecnYiEy84VUoCWsyB/i/ioMQ6mIhEAKGQJYgH9JCFX9VEso4lSKXRSCVQJLh6o0 lUHb1VhukNwhYAZ+t70oTeoUPG74nPiydOGwZ6EfkYnfSYLpZD0uqdcaYoLnHcHxKYge zX/578jCiOaOlXUZTgBgFDhTcnXCfmw5AhZpgn4nKHDgk+xxtaDb63z5VH7izpVB8qbU tU8ofttDDlFPCKtSRSHZ0YU8YKgKH0DfuQ7K3vWjATgRRWe9sZcT/uCDYwsaWSSlFkJr akEVoilPXrjjOOqj0tqHG9qNVZhqbUy/69FHFqUEpQiQ2yRiDPF44zp5TSGCU3PfRBGp zfqg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721921638; x=1722526438; h=content-transfer-encoding:in-reply-to:from:content-language :references:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=g53O1snI4oPFwCnbuNKYfO5V/N74kXxNW+Iv3dJPjrc=; b=ft4RLdQfhytZ8MXh44PWPf/Hf86TFw1pTK0OC97OAKB0e9F/hMUgxTPMNkdl4qJgPR 7qSK/GWE6Koqe6GZrVBVlIlJpg5aaQ55wmo7yc2BRks6v9JP7ueHaiBT0DCewmxM/8gC OmhoimKU8J/icY7yORYYN+uMaDHv3wRz9ZPwvnU14Je96SWAHWBcAMtBuhYjfGOsLNQh dxY9ysYqt8A1uRm1zoAcYDY+0nllKvoAIjvKI2yUo5Gl/TPtYsVWg1YwsQm+Am8UFmKF Rlz+RWxpU9Ko9XdfY7oaZj4HtFhxZdK0OjR8YUGTNaUjEzYyAqi79lANjqwVQbWnuCd3 q6Pg== X-Forwarded-Encrypted: i=1; AJvYcCXqRtHMJ5+ai+acE3yD2crc9Yv1ixzfmlIQ3MGNUBzne0t9NQTTV/2so0noID3t79P4qRTKK/xdiA==@vger.kernel.org X-Gm-Message-State: AOJu0YydCOLJ4dpOnhmT3dh+TmHzicxUM7KIE4zjanBUX+TZNPbQoOF8 k9gdTOOIPd+PfeYFyNLwXqHGPLtG/re+39ieTRODKBDZNwYyp3ywtSySYLCbKU4= X-Google-Smtp-Source: AGHT+IEynBpKdaXa6q3tBg0iKHDslLDr5qjduvk2y2DBCWfufQXNXfHFcrhbIA8/bZdL6S308/W2HA== X-Received: by 2002:a17:90b:f81:b0:2cd:1e0d:a4c8 with SMTP id 98e67ed59e1d1-2cf262e02f8mr1998913a91.3.1721921638031; Thu, 25 Jul 2024 08:33:58 -0700 (PDT) Received: from [192.168.1.150] ([198.8.77.157]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2cdb74e8769sm3717131a91.42.2024.07.25.08.33.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 25 Jul 2024 08:33:57 -0700 (PDT) Message-ID: <5cc61aa9-0088-4bf6-8fd8-a47de626a805@kernel.dk> Date: Thu, 25 Jul 2024 09:33:56 -0600 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [syzbot] [io-uring?] KMSAN: uninit-value in io_req_cqe_overflow (3) To: syzbot , asml.silence@gmail.com, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <000000000000852fce061acaa456@google.com> Content-Language: en-US From: Jens Axboe In-Reply-To: <000000000000852fce061acaa456@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit #syz fix: io_uring/net: assign kmsg inq/flags before buffer selection -- Jens Axboe