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=-9.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 BE8E5C433E1 for ; Tue, 14 Jul 2020 09:36:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9D5A6217A0 for ; Tue, 14 Jul 2020 09:36:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="juo9EVQA" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726603AbgGNJgd (ORCPT ); Tue, 14 Jul 2020 05:36:33 -0400 Received: from out1-smtp.messagingengine.com ([66.111.4.25]:59361 "EHLO out1-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725816AbgGNJgd (ORCPT ); Tue, 14 Jul 2020 05:36:33 -0400 Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.nyi.internal (Postfix) with ESMTP id 044095C0158; Tue, 14 Jul 2020 05:36:32 -0400 (EDT) Received: from mailfrontend1 ([10.202.2.162]) by compute4.internal (MEProxy); Tue, 14 Jul 2020 05:36:32 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm3; bh=Ikp6IE 9N1Xr46q5bU05QaviFnf+U/vK1Pwzbeox1CaY=; b=juo9EVQAOypmGYCFhp1QoT DTEMxgrf4n1cR0nG6Pr+641n41oQYvy5v7/BoUbv7S0E+DZzhILmW0qyO1OE9fXZ uk03BdZ8t+l3aGC6uPt5EGpY2NK5+NG4mFBDXX+EkZ7mWrv0cyXGQG8BuV9VMXtF Re2WNs/i0gKIG2/TdVf4LE9zGa4d8DUSXZZBk90byTZbSBFnYg+5snx2gLLt6zHn 2oWPWD642OHJofRXX0/1w4mDTn0ieXeiWXAqIGY1qX8Kj2z5aS0hf3gjZVXk/aBx 0F2IA6aqpxsQjEHVI6oFUaXQi0T8LxisvoymoHY2uWPnzWZsKC1OgmF60WKtqfLQ == X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduiedrfedtgddulecutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecuogfuuhhsphgvtghtffhomhgrihhnucdlgeelmdenuc fjughrpeffhffvuffkfhggtggujgesthdtredttddtvdenucfhrhhomhepkfguohcuufgt hhhimhhmvghluceoihguohhstghhsehiughoshgthhdrohhrgheqnecuggftrfgrthhtvg hrnhephedutdegkeevveettedvteeuveegjeffteekffffhfdvgedugeejteeuvedvteek necuffhomhgrihhnpehkvghrnhgvlhdrohhrghdprghpphhsphhothdrtghomhenucfkph epuddtledrieeirdduledrudeffeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgr mhepmhgrihhlfhhrohhmpehiughoshgthhesihguohhstghhrdhorhhg X-ME-Proxy: Received: from localhost (bzq-109-66-19-133.red.bezeqint.net [109.66.19.133]) by mail.messagingengine.com (Postfix) with ESMTPA id 311E03280059; Tue, 14 Jul 2020 05:36:31 -0400 (EDT) Date: Tue, 14 Jul 2020 12:36:28 +0300 From: Ido Schimmel To: syzbot Cc: davem@davemloft.net, jiri@mellanox.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: KASAN: use-after-free Read in devlink_health_reporter_destroy Message-ID: <20200714093628.GA274556@shredder> References: <000000000000dd436905aa5a9533@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000dd436905aa5a9533@google.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jul 13, 2020 at 03:55:21PM -0700, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit: 71930d61 Merge git://git.kernel.org/pub/scm/linux/kernel/g.. > git tree: net-next > console output: https://syzkaller.appspot.com/x/log.txt?x=10c8d157100000 > kernel config: https://syzkaller.appspot.com/x/.config?x=4c5bc87125719cf4 > dashboard link: https://syzkaller.appspot.com/bug?extid=dd0040db0d77d52f98a5 > compiler: gcc (GCC) 10.1.0-syz 20200507 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1421cd3f100000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13ccfe4f100000 > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+dd0040db0d77d52f98a5@syzkaller.appspotmail.com #syz fix: devlink: Fix use-after-free when destroying health reporters