From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f181.google.com (mail-pg1-f181.google.com [209.85.215.181]) (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 4CD6823BC for ; Sun, 14 Jan 2024 14:26:41 +0000 (UTC) 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="JuH9bEwT" Received: by mail-pg1-f181.google.com with SMTP id 41be03b00d2f7-55b5a37acb6so701061a12.0 for ; Sun, 14 Jan 2024 06:26:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20230601.gappssmtp.com; s=20230601; t=1705242401; x=1705847201; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:references:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=YgvPicHYAHMSP7JaCkgKQ3HWaYi8D+Ul7BveqF0AB+g=; b=JuH9bEwT9J7AYUOuIRFPg0fmN1VRX+Fbi9up8TuEaZdGW+4SAaHi7iOd+y+fP7pV77 OXqXFegLgBvnvBG5yi7sPpyDbcmj1ThfTgoj0xSzCdkKq8BKYmt1ao8PD9EPZ+9YELQg nnSTJS7Few22gArcFfYjw7+XyXy9N9W2C7IZxN3/hDIcEtYf7i7QivGpB6PRqP0ZzvLx f2rb+847Ot4HdaHXuHyUvaRmhDOVKI9+XaeRqVv0bpkZRgzT/x4i29Z0ZMH/zic2M7/e unfZAzZCANTNbsKDUtzOp9LR375gG2EDzXrn7bO15gi8oUuLWYgrk3EaP1TnoFccxbkY YFvg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705242401; x=1705847201; h=content-transfer-encoding:in-reply-to:from:references:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=YgvPicHYAHMSP7JaCkgKQ3HWaYi8D+Ul7BveqF0AB+g=; b=fhejihIgIpnkc/FObAFIPFuq7a0D+8HOlqzKhtL47qS0g1DnB+7sqSHQwei1nRbnk6 Mobjj4DGiaAodrnpkAO/o3iaZGGycv2tn9Hrc7LQ081Mbeu/lI42OFchtJOsz7qgGQPl po8xe8Q4pRr0KbpVltnOUIONCqRTeoqxxnArLwwBWwnE05szMYX8psUfq8DfPAuQQFBA j3PCYyCdLRPXxgUWoDXWbeQpLQjzT0nFTLAoCYeL/5vBavcoKS1RXDkwAp9XmSRWb+kt LK/xIuXIXfLRqBG73Dm689MsX5YYJYhXO7lM2W2z40IwpXz0eqptger5Ahs4648qVEtk Hovg== X-Gm-Message-State: AOJu0Yz7YBBkdfz9iQNjOLCuCx163XVH3ADyCbe679d4TO+VTeasHH17 Or8BOoRct6TGN173C1FdSHCOGZzJWYRuzA== X-Google-Smtp-Source: AGHT+IG+tMcQu41vVh0L3LIA054UD7wMMv66Ufg/tQuvhLxO/ZBv8yoj12TsjTayOaLkYMOSHf22Tg== X-Received: by 2002:a05:6a00:17a8:b0:6da:83a2:1f15 with SMTP id s40-20020a056a0017a800b006da83a21f15mr10128998pfg.0.1705242401255; Sun, 14 Jan 2024 06:26:41 -0800 (PST) Received: from [192.168.1.150] ([198.8.77.194]) by smtp.gmail.com with ESMTPSA id u20-20020a056a00099400b006da76842a66sm6055101pfg.85.2024.01.14.06.26.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 14 Jan 2024 06:26:39 -0800 (PST) Message-ID: <3bf0382a-8e7f-4464-9b22-b9cf4fd37ba7@kernel.dk> Date: Sun, 14 Jan 2024 07:26:38 -0700 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_rw_fail Content-Language: en-US To: syzbot , asml.silence@gmail.com, io-uring@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <000000000000e06949060ee528f1@google.com> From: Jens Axboe In-Reply-To: <000000000000e06949060ee528f1@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit #syz fix: io_uring/rw: ensure io->bytes_done is always initialized -- Jens Axboe