Received: by 2002:a25:e74b:0:0:0:0:0 with SMTP id e72csp1615345ybh; Tue, 14 Jul 2020 02:37:28 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwKo3HOUOVwiAjd5o1bjA5dyvp+GxsyldXwQTb/eWQPM44UhDKcPMVR4l/9Hz3diLb+a4/2 X-Received: by 2002:aa7:c609:: with SMTP id h9mr3733159edq.43.1594719448188; Tue, 14 Jul 2020 02:37:28 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1594719448; cv=none; d=google.com; s=arc-20160816; b=caDlFUQfyhjhrR1D1oC9v2A0FvD4JJ98DyAWybjFtc5MuOGKx9RP5GZmO8F9bnTUF9 pmwEbX+wWcyn9vcnqsTUns8Kyqxr1FqOoRaLs8d91uiQLXoRKtzunzHdSELckKCMMauC uxkIthw65P1fe6SMHTqDKE8LbNibr1uaubge51kGhZ9n2nfZ4TYpaFgl+1h3mhAR3Zpu j9eZxCgREVe2MnVGxaLpbCbrRiBrQzNm75tWsOUJEAry/7LPHL0UZZg5vmKmWw1AgWuW TNSK0guPbKW3iG3GzB/ysYWQDFkk7on7jIGg3J8fIdK456mZjkQWlojW1/X2cqcs7+VX GrvA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :dkim-signature; bh=Ikp6IE9N1Xr46q5bU05QaviFnf+U/vK1Pwzbeox1CaY=; b=EAzBdTJpmh6XLcQsxIE/lqVeHk1cS3ebnLUVHIrJDyyNbvJYCVXzVxyM3Z6EtrOjD+ VzcfPPBFXsf05Mc1S1IJTYp8okoNwoiBGCXKx+Ayw/69Yy2bsmGcpMMuBUAZh3DDrCGW Nb5NR+1+Hdt55Zgxc9mcV4Te5rpnbFmvnsBgawO9poP9n8Dgvi/Z/IDamX1o/uWhDqT2 NhD1zZ7mhwukeMXwSlw3ED9pl3ENHtaulce8FaCEU2r8HSXUWhVAb6eLcK0QlxlyTN6r jW2krPgYmddW459eCSqyTh3+I7J8/scvGEZtBRLqlAxtd4xcsxcdRFoSBeaR3TX7KPjw J5Zg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@messagingengine.com header.s=fm3 header.b=juo9EVQA; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id s19si10525319ejq.719.2020.07.14.02.37.04; Tue, 14 Jul 2020 02:37:28 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@messagingengine.com header.s=fm3 header.b=juo9EVQA; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726252AbgGNJgd (ORCPT + 99 others); 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