From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8C654C35247 for ; Tue, 4 Feb 2020 18:03:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6038A2084E for ; Tue, 4 Feb 2020 18:03:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="MLQxWerq" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727484AbgBDSDT (ORCPT ); Tue, 4 Feb 2020 13:03:19 -0500 Received: from mail-pg1-f195.google.com ([209.85.215.195]:36043 "EHLO mail-pg1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727355AbgBDSDT (ORCPT ); Tue, 4 Feb 2020 13:03:19 -0500 Received: by mail-pg1-f195.google.com with SMTP id k3so10038543pgc.3; Tue, 04 Feb 2020 10:03:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=E8TOUJb1LB1CGjhRZlBmQYfzHnpM6fLCA335raKvA2E=; b=MLQxWerqYuNYbiSuIddhGPcw/f2KrN+IYw9SJLGy3qyOjA+Ux1wMpnyc/zWnle0AlK bAb1WtyMcY7alctYQTVQQcinJaoqkMOzRE3UAYXco3OFid/MXm6q1SlmETLRK51m7+iN xqOcxIedAgSPRfOuRylvDKysGj60wPSZ2dTPrJKUU6WpL53y8Gdog2li7PFyvzdtCYPz yR3vC/HuccTRevBQy8eeWnFN5qFlVRgKOu5Edvm9UqVfHFqZ7Mc+pRsq0LJCWx/TB8ic U+bXabrIHvoJO8uMu5An9CpQmjNNyTZOCRYlyMFMzXgl1DuwsCafCXBP24keqA66EERk wfPQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=E8TOUJb1LB1CGjhRZlBmQYfzHnpM6fLCA335raKvA2E=; b=AZp603gJ7ltvYDlaGu7hgcIhv9HddJMw/lUplDpcfD2LqZLJ1h4mfJtXGpSR1pUfPc UGzOngTLC34SZ6BVtrdWdAYB6+lKDmIrJE79BdRx2OlGfAoQoIauXmrexIzDJ7YKizLE c+mb1Ni+IEY7DRIArxDhfYZWbTj209+Au4KQ+ZWI26m6GKMBEoG/jHfUq/MmTpkfe1r+ 4AlrqIH66vYzL7bDZcEYDLBMFxw4tMB9idQ/7tfDYKEbPGfCHjrI2GGIvAAUpMoljbO4 lTxWbqJP086b3vBj9y1ya6D18KIxQGlBua5xrGwpvNIBeUkT/3qZFa/QYW7DijuEwbSk 8oWA== X-Gm-Message-State: APjAAAVk2yAoFvlMVjzHRyRoUU3sXzwxWzlb9X9lZ6o9bN1Gxb0PNbBe 6gYXZkSI+OIvQGW/Wpqj22qXzCxE X-Google-Smtp-Source: APXvYqwpCEt7Ve+QDFk7hfb8VlqxpZPJCjxtg1oAHNkMcmdWpBb398WQboTbu4dVUuImidW2CetKMw== X-Received: by 2002:a63:515d:: with SMTP id r29mr24456711pgl.265.1580839398398; Tue, 04 Feb 2020 10:03:18 -0800 (PST) Received: from ?IPv6:2620:15c:2c1:200:55c7:81e6:c7d8:94b? ([2620:15c:2c1:200:55c7:81e6:c7d8:94b]) by smtp.gmail.com with ESMTPSA id w14sm3022453pgi.22.2020.02.04.10.03.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 04 Feb 2020 10:03:17 -0800 (PST) Subject: Re: memory leak in tcindex_set_parms To: syzbot , davem@davemloft.net, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, xiyou.wangcong@gmail.com References: <0000000000009a59d2059dc3c8e9@google.com> From: Eric Dumazet Message-ID: Date: Tue, 4 Feb 2020 10:03:16 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.2 MIME-Version: 1.0 In-Reply-To: <0000000000009a59d2059dc3c8e9@google.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2/4/20 9:58 AM, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit: 322bf2d3 Merge branch 'for-5.6' of git://git.kernel.org/pu.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=1111f8e6e00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=8d0490614a000a37 > dashboard link: https://syzkaller.appspot.com/bug?extid=f0bbb2287b8993d4fa74 > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17db90f6e00000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13a94511e00000 > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+f0bbb2287b8993d4fa74@syzkaller.appspotmail.com > > Might have been fixed already ? commit 599be01ee567b61f4471ee8078870847d0a11e8e net_sched: fix an OOB access in cls_tcindex