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=-13.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_IN_DEF_DKIM_WL 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 74F68C433FF for ; Thu, 8 Aug 2019 12:28:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 455E4204EC for ; Thu, 8 Aug 2019 12:28:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="JmSzOXhD" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732372AbfHHM2G (ORCPT ); Thu, 8 Aug 2019 08:28:06 -0400 Received: from mail-pg1-f196.google.com ([209.85.215.196]:46122 "EHLO mail-pg1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732361AbfHHM2G (ORCPT ); Thu, 8 Aug 2019 08:28:06 -0400 Received: by mail-pg1-f196.google.com with SMTP id w3so6789179pgt.13 for ; Thu, 08 Aug 2019 05:28:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=i/W3w/wF9Y9te3JMoVhcMehzwVrt1opOlejjt4rI4AE=; b=JmSzOXhD6xc1Qb7v1wEp0V2tWsNPh5fGFF88h2zu1ElMyG3KgLjylsdyOnqWGZcItc tP4YvMgsCHqHZw69kNyc6Rx5xdexwEjo/lVa3NrHAjIz+jGBsC7JjYHIXPlqH00+U9Rj vo4g0Iy6lZlXwSvj1LG4dxvGz4gc/mh0fkZaFnckVQDHcmWHPqGX2C9hM5/PiFpv+9tp uqJiPobqcNkiB2JdQ5mmWLwuAideQaaIl7SelOD5YfUny7fvj7TURoAR9qIxlNXNxy5x HT8InMsW/bOjtbJ9dH1E+229QEILOJtHjCeDt0Xh5O0NaoD+C/jOboe4sQj6NhekP3zc yxqQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=i/W3w/wF9Y9te3JMoVhcMehzwVrt1opOlejjt4rI4AE=; b=WEfY8fkeAkqKBwUTbMWYHDV5hT2fqJyHH02U0CAyHE9vmFfvYPvlCgRCQPWc4wu4Rc aR7teRtwCQpGw0P6z8sQsGlm0JT+uO+sgYBCW9O5SPKoiOpqA5Qkmx1HeDijwHYVRm1p fkjv7bVcULOJyBicM6405XcvNV7RHYDTuKkc3xOD5a7HqAXZ9GkiqC7zOvTW3LenvCbY +UO74E5k0R9O9gLn8zSeyyjBFg5tozFk+ouODfNDpeShWm+MALgnpHfj8xGFf38216wL HL1Iq6HF8s8UNP/9KM2t7INE4LvPS57CmFHB2+k1EkIEh/eW/d7/BajXx/lJod88itIR 52iA== X-Gm-Message-State: APjAAAUelovq9STbT/YrYJSqJ3YbDnumZKnbKZ3UgTwlU4LwCWi/RF9L fHSJsFsDgZIlWiFrJ3ViIpq/g/O8aeqKV88LRKgMQg== X-Google-Smtp-Source: APXvYqwBefv4nXxVQmf02Ua1Yjn/KM4I7FhvNpXklH3IAgqyIJc+slSG3DgWRSLRO89JnCmOD5IciFA0UJhEIpUeIl8= X-Received: by 2002:aa7:9e9a:: with SMTP id p26mr15547168pfq.25.1565267285478; Thu, 08 Aug 2019 05:28:05 -0700 (PDT) MIME-Version: 1.0 References: <000000000000f365b6058f8b07ca@google.com> In-Reply-To: From: Andrey Konovalov Date: Thu, 8 Aug 2019 14:27:53 +0200 Message-ID: Subject: Re: KASAN: use-after-free Read in device_release_driver_internal To: Alan Stern , Dmitry Vyukov Cc: syzbot , LKML , USB list , Oliver Neukum , syzkaller-bugs Content-Type: text/plain; charset="UTF-8" Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On Wed, Aug 7, 2019 at 8:31 PM Alan Stern wrote: > > On Wed, 7 Aug 2019, syzbot wrote: > > > Hello, > > > > syzbot has tested the proposed patch and the reproducer did not trigger > > crash: > > > > Reported-and-tested-by: > > syzbot+1b2449b7b5dc240d107a@syzkaller.appspotmail.com > > > > Tested on: > > > > commit: 6a3599ce usb-fuzzer: main usb gadget fuzzer driver > > git tree: https://github.com/google/kasan.git > > kernel config: https://syzkaller.appspot.com/x/.config?x=700ca426ab83faae > > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > > patch: https://syzkaller.appspot.com/x/patch.diff?x=132eec8c600000 > > > > Note: testing is done by a robot and is best-effort only. > > Andrey, is there any way to get the console output from this test? Dmitry, would it be possible to link console log for successful tests as well? > > Alan Stern >