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=-5.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 749EDC35247 for ; Tue, 4 Feb 2020 21:22:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3ED9C21741 for ; Tue, 4 Feb 2020 21:22:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727628AbgBDVWw (ORCPT ); Tue, 4 Feb 2020 16:22:52 -0500 Received: from shards.monkeyblade.net ([23.128.96.9]:39128 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727483AbgBDVWw (ORCPT ); Tue, 4 Feb 2020 16:22:52 -0500 Received: from localhost (dhcp-077-249-119-090.chello.nl [77.249.119.90]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 8D16014DD3D87; Tue, 4 Feb 2020 13:22:49 -0800 (PST) Date: Tue, 04 Feb 2020 22:22:45 +0100 (CET) Message-Id: <20200204.222245.1920371518669295397.davem@davemloft.net> To: eric.dumazet@gmail.com Cc: syzbot+f0bbb2287b8993d4fa74@syzkaller.appspotmail.com, 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 Subject: Re: memory leak in tcindex_set_parms From: David Miller In-Reply-To: References: <0000000000009a59d2059dc3c8e9@google.com> X-Mailer: Mew version 6.8 on Emacs 26.3 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Tue, 04 Feb 2020 13:22:51 -0800 (PST) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Eric Dumazet Date: Tue, 4 Feb 2020 10:03:16 -0800 > > > 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 My reaction was actually that this bug is caused by this commit :)