From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f53.google.com (mail-pj1-f53.google.com [209.85.216.53]) (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 DA3F21993AE for ; Thu, 25 Jul 2024 15:33:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.53 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721921641; cv=none; b=oFIyJkDSCjo5LV98G2PQZRjWFWoHmPw4ju0grbzseuvYv658N/Xkbpk50PPDneU0doAq6TldlLDVupmfmd1BVjksjsg9ikQZEzLvKq+GmxB6+u26i2ym9HnTfy/YZqLqKVp+y2yadIuMjkZZxJ1I6gEfulnsvWFWTrVl/oqJ4iA= 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=209.85.216.53 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-pj1-f53.google.com with SMTP id 98e67ed59e1d1-2cb80633dcfso154526a91.0 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=ZZnOjNRXP7auaOV2AQjGNTi6eG7JokSgCr3lIJQS+Yu1Tx9EnB4h4P/IaSRQCY+Ir9 8/uMsQxNPz1cKWREvTycrtLo4zo/Kbh4E9DHLYP6jh7MYytKmeidAW2Zbrwrq3NiT7/s qjBfujRsSWRBKfS2mmcF5+bKN8y7PpwJZQfL1c7I2FAoKnKCDnj+F+4TiyU6R0cD5Ltb XSgQfmF8vL9LTB5zX2zyWU4X/6NbOYhPC76K1wgctZHh3fLpSB8c6YUk0sNlHpMXNdgP RN4opO53w8Xl3zJg9y5eOqvXLA2hBXBQ80f3k53SLluoCKVZjwMEj4KfgY9e55rH3Vrx kWwQ== X-Forwarded-Encrypted: i=1; AJvYcCV/wN7fcc3NozUqF1Pj7T3NHv+P58JMvaD9yOYEASMcxJa5p6wt1rXWr/xQVRM9i6WUqHKa+UB19Ka+ThY=@vger.kernel.org X-Gm-Message-State: AOJu0YwvJg2u4CpCn5TKNVEVmg79FhXiJ2TRgVEaT5eCG8hCoQpGLUd3 8yjGNPPd9dBy311Xxdxp96T/o6VO8S1xTURNIZhSRFgyVM2lQluYJwnWiq+d88s= 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: linux-kernel@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