Received: by 10.223.185.116 with SMTP id b49csp629326wrg; Wed, 14 Feb 2018 04:37:45 -0800 (PST) X-Google-Smtp-Source: AH8x226rrFRmgitAcSmpbcaElKVMONRN3yHZkk5c0DZRM8CHZWJF0rDkYuTAlGX7XIkq+n9UJPUV X-Received: by 10.99.168.8 with SMTP id o8mr3889090pgf.42.1518611865361; Wed, 14 Feb 2018 04:37:45 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1518611865; cv=none; d=google.com; s=arc-20160816; b=UzAXHGrg1fnQH5k7QfbT4TYip+NV0EHuMZFDsyeZ5qKuHQrdZ68lORWCTPyMIC3Mgr XWmWphdrEfodB4OOi6uialcqjLfmw+GTvfqTbElsiL1yCDKD6GXheYFPegPaeN9cFqtX GwDRQehiY/6qnFHe85s7J2q9gmS6kej1Oc68sJJmEeLbP6W7zENsaUyNmrUu6eWCMcJH dod8mEDnq9HKM8Nvw1HX5is6xTdxa+LP8Zdrxy/eGsv6wJWqpHBaIV+3wKMwFSYUAvOz k9pg2t96YQhRy1BVUDGfuX7KZX1ZBTpbLvUGrKydYl3zrK2+KQpd1T69oLdFS767HI2D sktQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding :content-language:in-reply-to:mime-version:user-agent:date :message-id:from:references:to:subject:arc-authentication-results; bh=pXoTbjpSsgOW9SnJqg2nTbPf1u3yuGPSMe/fxF5Vb8k=; b=AOqAhCY86R+BUlGBpJuJIVh4yPl6MPf49sH+I3/e6vX0CUTRcIKl8pwkx2LzZe7g61 aVmX5BgSSTVAdfk0vP/twvZhZXTD+uYkCs2a7BRo67SHORXwm5SeMf8hufZFPUVJolqC 8q8hm28Saip9GyyBqmFeVUlxPtPwt+u6vCYo6/IRsyu2rX6/u5onD1XDnH8uoQRxXJGX 0RU6G3d/HVhSHuobn6XJ2g9vWaHEhy1wIXaXFHlF6PVDHY84vflN396HJS/H7Si1SK5O 2Oqef8bWLIN1Uk7+IW7gGU2is1+is/gwxcoy2p8jnDlFr6Lc1isxDw417wvDnYbvCoPJ 0uVA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id e9-v6si7641022plt.685.2018.02.14.04.37.30; Wed, 14 Feb 2018 04:37:45 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S967691AbeBNMgv (ORCPT + 99 others); Wed, 14 Feb 2018 07:36:51 -0500 Received: from www62.your-server.de ([213.133.104.62]:57352 "EHLO www62.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S967541AbeBNMgu (ORCPT ); Wed, 14 Feb 2018 07:36:50 -0500 Received: from [62.202.221.8] (helo=linux.home) by www62.your-server.de with esmtpsa (TLSv1.2:DHE-RSA-AES256-SHA:256) (Exim 4.85_2) (envelope-from ) id 1elwIo-00007Z-H8; Wed, 14 Feb 2018 13:36:46 +0100 Subject: Re: WARNING: kmalloc bug in bpf_prog_array_copy_info To: syzbot , ast@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <001a11452e225976de056520c7b3@google.com> From: Daniel Borkmann Message-ID: <1171a3b4-67b2-dc8b-af87-d9378d42ab4c@iogearbox.net> Date: Wed, 14 Feb 2018 13:36:46 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 MIME-Version: 1.0 In-Reply-To: <001a11452e225976de056520c7b3@google.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Authenticated-Sender: daniel@iogearbox.net X-Virus-Scanned: Clear (ClamAV 0.99.3/24314/Wed Feb 14 10:21:29 2018) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 02/14/2018 12:59 AM, syzbot wrote: > Hello, > > syzbot hit the following crash on bpf-next commit > 7928b2cbe55b2a410a0f5c1f154610059c57b1b2 (Sun Feb 11 23:04:29 2018 +0000) > Linux 4.16-rc1 > > So far this crash happened 362 times on bpf-next. > C reproducer is attached. > syzkaller reproducer is attached. > Raw console output is attached. > compiler: gcc (GCC) 7.1.1 20170620 > .config is attached. Will send a fix for this in a bit.