Received: by 2002:a25:b794:0:0:0:0:0 with SMTP id n20csp5787497ybh; Wed, 7 Aug 2019 11:24:09 -0700 (PDT) X-Google-Smtp-Source: APXvYqyVBeRZH8FVL9wzAHVhQ3H4HUdPnmji/jiDEXW7wlq3ys7WUqkGTqIeZjllCTbOlvpwuqiK X-Received: by 2002:a17:902:6a2:: with SMTP id 31mr8920716plh.296.1565202249451; Wed, 07 Aug 2019 11:24:09 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1565202249; cv=none; d=google.com; s=arc-20160816; b=vynwa5Y1N8GUcngCJa4Gv99JhcMVR03O+r4I3KS1eLuVleghp+5D6YJ2zgOqKzv+Fv VTGvSLX3WE+NDLrV5wDeLKeOUbmVsTdTO3O0XkMEkCviwVCv2thQswXILYoFEl/i3MKn IH+i2eVnGlpNGLYw+z7hydfPCfRVCCN1is5/QzujUcQDMDoriWNgHrgHTi0m+JzgxLTC 5/GYpCRlKUSdBRc4bimmLtazrAfpLMz4h5vP15S6fpubxaVs9pB48CP30UF+Q4aLhVES cWoDut89WXSJ9DWaJ5ZvY1uu93bL25PTf8iET7ZYhvNWp8+CvgEfl8nmbuXZ7G4qKBWq mmNg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:to:from:subject:message-id:in-reply-to :date:mime-version; bh=BKZrN8UHWqfJl9RbVEGYooh5RMS//IjsbU72N8zChOk=; b=nj+QW7yAUhyadpPgi5HQ+dr8FsqeM8PUnuH3oemRhN+XH/38wL/KaC1lj1gAoStUv5 9Qepfc/oUPToLTMcD1CLcrzdn/vhudKmFir7KaKBh1TZKpcqFf5Y35TDxdlIjyvL7NPs 2CHOgm+EsY76TTMrxEqO+b/mHgm4RV7fC4KpodNe6DpgMMc2cQ4I7BPlzEer/j6/7gQU MsAGRy3bdE7lAyjeus1baPRbHRxO1z4T58V3gGFGTHqp2m8pcdvCF5eXiva5fBzF0l61 S93AxUwdNb/EoOLWhUKAZx+52pQRSbCCTjwDCUr/2w63EzXwpLM7+37K4ru/U+KglhL/ EJBA== 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; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id l70si440422pje.68.2019.08.07.11.23.54; Wed, 07 Aug 2019 11:24:09 -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; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389318AbfHGSXB (ORCPT + 99 others); Wed, 7 Aug 2019 14:23:01 -0400 Received: from mail-ot1-f70.google.com ([209.85.210.70]:45879 "EHLO mail-ot1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387953AbfHGSXA (ORCPT ); Wed, 7 Aug 2019 14:23:00 -0400 Received: by mail-ot1-f70.google.com with SMTP id b25so56319834otp.12 for ; Wed, 07 Aug 2019 11:23:00 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=BKZrN8UHWqfJl9RbVEGYooh5RMS//IjsbU72N8zChOk=; b=nwm6Ki5qNzJHYsiC74z3UMasdA4Twgo+gFuPaknqS/xwQ4d0nAO5J46WWZAbU+kXQx wO/VaOuVUK0BIq4NFBZoTDVqDiRm+BIlfp76eXPOJBIcT/1hCQKqK0KVIk6XSf3RTxGB fCGPlC1TXyUkwJVFFMZ95lzXHqASBpgDhT2eakBfIWrx6nipetC0bZRPvbBLnjNDJfAx cDz3vQyTUa/L0PPn/FVvbkaJ7m97luPSVPc87u4rUWvc18lby3wskf4QQS32NI3Kxgiy KFxKhIaix6GAj5OtMBmI/x7kwhJ/QIEXB6vuxrKpl4f9m+TR90icPZ2tKFsPAv9iLIwZ mihQ== X-Gm-Message-State: APjAAAUKBp7Xh8VYAEQT99qKqUjwKqFD4nk9lIIqMkgxZQzRbdrxLefL S4ciE9ZfkC6HeRdSaD3onPrfDCf1IANUhrJiZnSyfnUDzUwD MIME-Version: 1.0 X-Received: by 2002:a02:9004:: with SMTP id w4mr11668135jaf.111.1565202180169; Wed, 07 Aug 2019 11:23:00 -0700 (PDT) Date: Wed, 07 Aug 2019 11:23:00 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000f365b6058f8b07ca@google.com> Subject: Re: KASAN: use-after-free Read in device_release_driver_internal From: syzbot To: andreyknvl@google.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, oneukum@suse.com, stern@rowland.harvard.edu, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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.