Received: by 2002:a25:b794:0:0:0:0:0 with SMTP id n20csp5796058ybh; Wed, 7 Aug 2019 11:32:52 -0700 (PDT) X-Google-Smtp-Source: APXvYqzSriBCLWyYRG2SwC8G3ms5Mq3CxdkM7TVcvL4vYcFiWdwddEoMFgNmUxjgl+kkZ284wVzN X-Received: by 2002:a17:90b:f0f:: with SMTP id br15mr1231165pjb.101.1565202772121; Wed, 07 Aug 2019 11:32:52 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1565202772; cv=none; d=google.com; s=arc-20160816; b=oc++1qGO5BvrwI8zVZu/d+wD3Ux0RfxAns2m+yXM3FXwzTRe09b6x+rI/B4IlcEfhr 6jqYKwkCzbWSa+sH4SRj9MpTEgp1iFH9gJssDVF1P5vTVk47HcY54k7UosOpMp2sfr9h B8pxbM46DebEDrlAg1hMcZlfj/nrcqoMR3j8XZeibXPLt3AWLLr40K7lHkSv7t024had 5lIwMbSurjso8nSvZ4SK1wRiQP7XR1m02E+KsG2TAkOOUq6q8zuKX3OwzeOyOIVEZnt0 W+LGWsp2uQK992lG5z3M8y5OCAgH9M6CXHtZSO/zO8+8Egj1u5yOEybyEFVEqz4pIxzH aYyQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:message-id:in-reply-to :subject:cc:to:from:date; bh=mW9S4uw12wmHCxS28SeyvPgVhLMfEPb1mWaU28W+TtU=; b=hG9wsBLPCi3W38i+fOJcM78QCbx9MeVkAwVcMWPFLIcS68aYzd4BsSujv6C9drvQ1a C4Dz4m9fZP7vRtmKCGbiwLoTNSvN6O+gm45eJ/1jVx56DFOwLBUBeUYj8uhOtpkfvNsM 4bBOZfGMnRGysGzFcxhBnLjC1mG1JqPHlB/cCCDN8bYZl9LX82eyia5PracGRdB/UJuc Gb6VkuSZins0f/SJdY6CjdeDSv3fOZj3f9YD/yt+cSN8QPVmmI/qDMOclF+BzlFEwAwq e2tGAWCAFRdxax99vbB7DaY5LVEq5KqmuLv7Nm/XHhApV8dVo8HWyG0bz8cuc32BK8Yh Lp9A== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id w6si488741pjr.100.2019.08.07.11.32.34; Wed, 07 Aug 2019 11:32:52 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389336AbfHGSb6 (ORCPT + 99 others); Wed, 7 Aug 2019 14:31:58 -0400 Received: from iolanthe.rowland.org ([192.131.102.54]:43014 "HELO iolanthe.rowland.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S2388428AbfHGSb4 (ORCPT ); Wed, 7 Aug 2019 14:31:56 -0400 Received: (qmail 22511 invoked by uid 2102); 7 Aug 2019 14:31:55 -0400 Received: from localhost (sendmail-bs@127.0.0.1) by localhost with SMTP; 7 Aug 2019 14:31:55 -0400 Date: Wed, 7 Aug 2019 14:31:55 -0400 (EDT) From: Alan Stern X-X-Sender: stern@iolanthe.rowland.org To: syzbot cc: andreyknvl@google.com, , , , Subject: Re: KASAN: use-after-free Read in device_release_driver_internal In-Reply-To: <000000000000f365b6058f8b07ca@google.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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? Alan Stern