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=-5.7 required=3.0 tests=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 1D3CFC3A5A0 for ; Mon, 19 Aug 2019 22:42:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E50482070B for ; Mon, 19 Aug 2019 22:42:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=netronome-com.20150623.gappssmtp.com header.i=@netronome-com.20150623.gappssmtp.com header.b="IN8oX6sV" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728736AbfHSWmk (ORCPT ); Mon, 19 Aug 2019 18:42:40 -0400 Received: from mail-qk1-f196.google.com ([209.85.222.196]:35305 "EHLO mail-qk1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728469AbfHSWmj (ORCPT ); Mon, 19 Aug 2019 18:42:39 -0400 Received: by mail-qk1-f196.google.com with SMTP id r21so2905827qke.2 for ; Mon, 19 Aug 2019 15:42:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=netronome-com.20150623.gappssmtp.com; s=20150623; h=date:from:to:cc:subject:message-id:in-reply-to:references :organization:mime-version:content-transfer-encoding; bh=lcp+YLDBpIdavMYZNzsYtx/6frDIFLB/mtEMPIGQcP0=; b=IN8oX6sVAg2IBinffenCEWbsApvRd9a9R15KqQOKf1MrNurbdhkSlXMFZnisrsjEni Wi/NOPLUz/eU7VfDU7OBi3X7qi64sShMxSsqufmO5z47e4SM2jYnaEY7HLoFmhH1wYER TpJ0jxmK4f1Dq6cAUsLRkgqngVGBq//EzIE5fVfn1tBd5uVm5kQIOjIlm4CDlxivG1kb 8JhPpVp6CX/ZUsL+Og+Xhj80Ksy2IRUqk204J/tvelajK+lZs1dLpSSHDfKizJHOgJHa ky4RIs646NLnzR0a0xQFb2AYe3C5ML9rYwNo6qN//7eqsAEDl2jht6Hjo1B9+S3EIbfM h8jA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:in-reply-to :references:organization:mime-version:content-transfer-encoding; bh=lcp+YLDBpIdavMYZNzsYtx/6frDIFLB/mtEMPIGQcP0=; b=njgPVkyePIocUR/IpVu4JYxoZQt9ceSDUkKb5KtjOsS31pZ+9IKE61SA+CbA1OuYLZ fDssQ8/FdCGC6mbkv+HN6/tgpQw+kMJuMo4mDGnaJE0YHL8v4JlUTfN2N1gcOHNMTvM9 d6BImS4vkPtJl2npESabVTTPgwU16dAWqDc26hqjrKCWYuoP41V2baXXwKWrb9qfKr62 TUJufA2lEP/SqyLuS72AhWSRaE4aFJjKuX6ObnC+lHQ6fQws499KWraoKOOTSEtsBrnX uI2eVAmTItILveSUO7GUvv4Dhz5KsN0V8xaZKmqn7snmCBMeE0iCJFiW+yRghTpBeM21 VPIQ== X-Gm-Message-State: APjAAAWqozwkjQfjGRRVoLIM4KSMZTKs764r+sb7Wi5d/hgnJSPQh0NZ FWZoQEoiZIxY9FN9fetjSRSzWA== X-Google-Smtp-Source: APXvYqwkycOlwWICAK5DY/s2gye+jBIFKcaX4m6pf/9isjOpkChpjqm9237VN/njknmFQUW8C4DhMQ== X-Received: by 2002:a37:dc1:: with SMTP id 184mr23232000qkn.10.1566254558998; Mon, 19 Aug 2019 15:42:38 -0700 (PDT) Received: from cakuba.netronome.com ([66.60.152.14]) by smtp.gmail.com with ESMTPSA id g3sm7541182qke.105.2019.08.19.15.42.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Aug 2019 15:42:38 -0700 (PDT) Date: Mon, 19 Aug 2019 15:42:32 -0700 From: Jakub Kicinski To: syzbot Cc: aviadye@mellanox.com, borisp@mellanox.com, daniel@iogearbox.net, davejwatson@fb.com, davem@davemloft.net, john.fastabend@gmail.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: KASAN: use-after-free Read in tls_push_sg Message-ID: <20190819154232.4f1ed902@cakuba.netronome.com> In-Reply-To: <0000000000000d1491058919b662@google.com> References: <0000000000000d1491058919b662@google.com> Organization: Netronome Systems, Ltd. MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Fri, 17 May 2019 11:40:05 -0700, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit: 35c99ffa Merge tag 'for_linus' of git://git.kernel.org/pub.. > git tree: net-next > console output: https://syzkaller.appspot.com/x/log.txt?x=10ff3322a00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=82f0809e8f0a8c87 > dashboard link: https://syzkaller.appspot.com/bug?extid=66fbe4719f6ef22754ee > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > > Unfortunately, I don't have any reproducer for this crash yet. > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+66fbe4719f6ef22754ee@syzkaller.appspotmail.com Most likely: #syz fix: net/tls: fix page double free on TX cleanup