Received: by 2002:ac0:a5a7:0:0:0:0:0 with SMTP id m36-v6csp1400333imm; Thu, 12 Jul 2018 00:55:44 -0700 (PDT) X-Google-Smtp-Source: AAOMgpfqJA3ORkzaiQkDybQCTXD5lQVx7JBY4v/ewIcBKr96diAusKMIlHugqtW2FY/7hzJKsAFN X-Received: by 2002:a17:902:b08a:: with SMTP id p10-v6mr1198175plr.0.1531382144186; Thu, 12 Jul 2018 00:55:44 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1531382144; cv=none; d=google.com; s=arc-20160816; b=vqDuAh1GutF0dFSzDo2wBo6aDxTmrCEmqaGOPwHVD6uuJND6oKQhhEycFwmJLQ/D4R 5lCfdUfquSANkgDPfla0dy13kWNOXKfeX9X0e7FSQ/+ZyTIQRjVhzN8ThiM7I7RkAjeO YYXTLik8ILU0avh564TgVXAXiC+Eg/K0tbZ0F2jdwJXd7AnpfdcmPHRApS0ZzzonWvNq ZYQ4vCvzpC3CZAMGqMzX/ic051I30PtpyB+geeudxoKE+aeRjl46bQEc5qUZJvu8SziN yjKlUCbFPGt4WdJE8kW8zrzyT8yo8XYU1TJ8Wn1ZhHmFdKKv284QNMWNNGaXEqTAd825 athg== 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:cc:to:subject:arc-authentication-results; bh=2rAifI7rZu6uK0bF6SOwf29ZcMF/KDdJakB0PqY6FPs=; b=jdWS6Lt2ocPxVqnYAa+SjRM7UFbekvHj6mYj7+YApdX8acnG6fKswySmPpcsOJkkk7 GodwcGpTXAPcw5w+ti/LHKCE2wkN1mL59RHdWAEwyQARtP0jpUTyV/YUjKS0HQnOoxpx zrKyH9hh+I8RYrK9FmpDPvcvm4Q3PSfiG+8Cd7B85AsnmNL8mkYL7+sjFHR0e5G8LjvU 0fht2nY8wjge4KQE4cCS54cv54j3Rfds/aXpxyiHffartjxefk+kiLVmu+aYUonhGUox FI3La0X7ul3mIOg7SUsNFnyklIheNP88L+Tun7FK1vnIg2CiEZwJwWKkoPFf3qnaZPf3 vWAA== 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 x5-v6si20028580pgc.210.2018.07.12.00.55.28; Thu, 12 Jul 2018 00:55:44 -0700 (PDT) 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 S1732289AbeGLICq (ORCPT + 99 others); Thu, 12 Jul 2018 04:02:46 -0400 Received: from www62.your-server.de ([213.133.104.62]:60189 "EHLO www62.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726093AbeGLICq (ORCPT ); Thu, 12 Jul 2018 04:02:46 -0400 Received: from [78.46.172.2] (helo=sslproxy05.your-server.de) by www62.your-server.de with esmtpsa (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.85_2) (envelope-from ) id 1fdWQe-0007YU-L8; Thu, 12 Jul 2018 09:54:20 +0200 Received: from [62.203.87.61] (helo=linux.home) by sslproxy05.your-server.de with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1fdWQe-000BXY-G6; Thu, 12 Jul 2018 09:54:20 +0200 Subject: Re: WARNING in bpf_check To: Dmitry Vyukov , syzbot Cc: Alexei Starovoitov , LKML , netdev , syzkaller-bugs References: <00000000000025f8880570c87c51@google.com> From: Daniel Borkmann Message-ID: <71a0836d-f4db-d119-0495-dd8732df2cdf@iogearbox.net> Date: Thu, 12 Jul 2018 09:54:20 +0200 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: 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 0.100.0/24745/Thu Jul 12 06:53:57 2018) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/12/2018 09:51 AM, Dmitry Vyukov wrote: > On Thu, Jul 12, 2018 at 9:41 AM, syzbot [...] > Reproducer is below. It seems to be related to the kmalloc failure in > jit_subprogs(): Thanks a lot Dmitry! Already looking into it.