Received: by 2002:a25:1985:0:0:0:0:0 with SMTP id 127csp809518ybz; Wed, 22 Apr 2020 08:22:46 -0700 (PDT) X-Google-Smtp-Source: APiQypJmEAMJQtPYAVfXsDHJvp6cum6MWHcCrnptx/1cfu5iVaz3GHsI/EDKRoVP8mtlv2DAYjoL X-Received: by 2002:a17:906:cec5:: with SMTP id si5mr26662889ejb.267.1587568966199; Wed, 22 Apr 2020 08:22:46 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1587568966; cv=none; d=google.com; s=arc-20160816; b=AcID0sN6c+dCcBNdgz95rP3OKdAyQ4Ilat4cWDiJrq3G57+R6TJok0qmC2gd7muYQb X9kFeng4u1W5IPe48Jnj2y0dilFRpE7KUd0CubDwcYgjFX9tw1Ydx+NZXWraPDFACaAt KpAZrX7nljtsS4fp1Chx+ye6pIEldc0JCVoCAfMUs1g68pn/P7A5yhYLQe+ItG1K7JEq 7rKmRqL90jqhJLQIy8zSPMHlmHMt7w43iIvkviAPDQqGSXAE3YLIUZfXaeSAaQlEfwYn ApOOuPnnbNBuOSYZM2EU4GjFLdMyaB3pxt64Qv+QQIkav8lZg5dqmCoL1B6ItC/ahhO2 FWDg== 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=pz5CUTnf5j/KbXtN31blRs8hszDPf+GoywqGxmL0NSU=; b=QZZSgNbmpjwo14edkYRcjMERyHTHea5SZcO7WnWFsbDUJiJaDMa2jkNq2kX6ViI6CF /CKD7CuD/moYgiKaONxxvQipcdsQdz6q1LTzi0LFn9jlEuuEgYhDY0xbQQdqVVKKC93P X9Gm32E+XonfSCYNIjizrvGXLMi0bKz2AuHpijUPnC3dXQgslpaQqo7ngPEmnMJXTVKD DyKJYbjXTcnPOdy5kBe0h2f1rasn/DrxW/9YwfDJgSvooupR7Wb9dHYKAsdztZQMzZ53 fUcehlbB2pUv2oTdFLJlzVaW8EfHUrSl0OqTD72Wj+FyGE9mxis2k+gdYuErh9rALy+4 /ArA== ARC-Authentication-Results: i=1; mx.google.com; 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; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id w16si3695823ejb.521.2020.04.22.08.22.16; Wed, 22 Apr 2020 08:22:46 -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; 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; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=appspotmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726124AbgDVPVF (ORCPT + 99 others); Wed, 22 Apr 2020 11:21:05 -0400 Received: from mail-il1-f197.google.com ([209.85.166.197]:49499 "EHLO mail-il1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726006AbgDVPVE (ORCPT ); Wed, 22 Apr 2020 11:21:04 -0400 Received: by mail-il1-f197.google.com with SMTP id z18so2211200ilp.16 for ; Wed, 22 Apr 2020 08:21:04 -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=pz5CUTnf5j/KbXtN31blRs8hszDPf+GoywqGxmL0NSU=; b=jUcTq3r5+FrBxTRJK6v+QsfZVeu+jK8EXPby9NZQpUd1sy0i918Sm/kfm6kU3o6n5a B8braiAB/iyyonYkHsmKGZbfNQiUx4BEw/fa0tRNSSpe5PEh9xEWxj2D17AqzzakQb1p zlrvwWRO5FALxnlREF5cL93cr44PPUeH3iShS5FmYjB4NEc6SUCSj6IzPyvsc8fmDItr LufVKRQipqrW0o6+LNH6I1eMcB0GvpdHuWAa7FqZ7iMxBQB5eBN6KdKpHAmiF9B4CGJB sMpzrPqnvbqlwJnO3AmnQJNIIKpMebIQLUWHEW+7TW7tfkZB8LYJ575UaY1H5piQVU62 eOiw== X-Gm-Message-State: AGi0PuZoUzy5IUZ3UvkN+q+NzILzhyMWhDVT9VD2te+3HKM+VLqr6XaG QHal24rPFeKDx15CoqYJCBQMeT1vpVsHuqd9JU7oWWqC48Fo MIME-Version: 1.0 X-Received: by 2002:a92:d149:: with SMTP id t9mr17233217ilg.213.1587568863606; Wed, 22 Apr 2020 08:21:03 -0700 (PDT) Date: Wed, 22 Apr 2020 08:21:03 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000002bfce805a3e2aec4@google.com> Subject: Re: KASAN: use-after-free Read in usbhid_close (3) From: syzbot To: andreyknvl@google.com, benjamin.tissoires@redhat.com, dmitry.torokhov@gmail.com, gregkh@linuxfoundation.org, hdegoede@redhat.com, ingrassia@epigenesys.com, jikos@kernel.org, julian@cipht.net, killertofu@gmail.com, linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, pingc@wacom.com, pinglinux@gmail.com, stern@rowland.harvard.edu, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" 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+7bf5a7b0f0a1f9446f4c@syzkaller.appspotmail.com Tested on: commit: 0fa84af8 Merge tag 'usb-serial-5.7-rc1' of https://git.ker.. git tree: https://github.com/google/kasan.git kernel config: https://syzkaller.appspot.com/x/.config?x=6b9c154b0c23aecf dashboard link: https://syzkaller.appspot.com/bug?extid=7bf5a7b0f0a1f9446f4c compiler: gcc (GCC) 9.0.0 20181231 (experimental) patch: https://syzkaller.appspot.com/x/patch.diff?x=14f40acfe00000 Note: testing is done by a robot and is best-effort only.