Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp3757984yba; Tue, 23 Apr 2019 09:07:40 -0700 (PDT) X-Google-Smtp-Source: APXvYqzcHL2inKYsjrtiVINo5TG/YlGJJjCQ34ZUHolxpxZGu5mUp/mE4lxRFuOCjMrRI3bK0CHO X-Received: by 2002:a17:902:9304:: with SMTP id bc4mr27350893plb.312.1556035660623; Tue, 23 Apr 2019 09:07:40 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1556035660; cv=none; d=google.com; s=arc-20160816; b=aUObNqf+nfJXYUJlpizMRlepHd0Tp2vzJFK+FtRhPWKgG9qaixZI5e+xstj3ZRtXre h80Wqez4/NKBpDCNS5bopgYbe9L3JqEkln2hrpXTst7XjWlgYF2nGJGtkGv0QAGLDtmZ h4XVLYRzXAAIlPRI0w5H5Qx4tSnnA3XEEm/XIfpkHhqd2wQNVsGGl7MYg1kHpma6Hd6I ESYJWnhHP0rbncnY03xHc8jB9L2Mlu8mHfsiK5DuM3YlJXaLPClfu/T2t67o2Hy9h8ys cO306rbkRqh0IqxFfHLfUjoXBQw0D3324ne70QATkFBgFHvBDPecxLlFcwSE+tpkxzq/ wcDw== 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=oQ+5RDeXMVUx96sriKP1rnJUCvzHQET4JfCD0yTqnK4=; b=vBxme6ydH8+pQRAgD2m9zxwiaGH8KoU5DaX5SeGbFAXCTfnMfIObaBN/MXQedm+i33 SvvxvqB+DGN+fFA7T1b/E1i+FdvF3qJfDysINKTa74ESZ7kJS5PilMS1RMp+Vq5WwyFg u5zlmvDAu4ERwM2HaxwAaSwFi3F6lk8AGKar8mppI+MyxOCfzfeeiQnYyDusdyp+UJyQ fMl+EQXfj0IoYb0mzirGn6Zaioj/DMDz/kI6+q52e3bpO/kQixRJlzkIdc836PjOODL7 9TpZ/VqmAy26L0v0Po/Wuy/mIzpKqDk1fyHEZHlHfMSjXdUXY+4RW+92sl9ck0QMm2r8 iYTg== 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 q23si15897160pll.21.2019.04.23.09.07.23; Tue, 23 Apr 2019 09:07:40 -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 S1728572AbfDWQGC (ORCPT + 99 others); Tue, 23 Apr 2019 12:06:02 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:45715 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728295AbfDWQGB (ORCPT ); Tue, 23 Apr 2019 12:06:01 -0400 Received: by mail-io1-f70.google.com with SMTP id j25so7329608ioj.12 for ; Tue, 23 Apr 2019 09:06:01 -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=oQ+5RDeXMVUx96sriKP1rnJUCvzHQET4JfCD0yTqnK4=; b=f8Y2v4OlMhA8awV2zdhkWE25qVRsuti/ktws9gr9ZZWhw6yl8URY2fLdKP7IMf93pY 4lqbSRQ77cg2j7mdPqHaiQh1pux2L+133rwTbm7xYbR1OPZS0/j5zp98nhSQH7rIow3J VHxZF4DYwm15XefM8mVkkDRxI9QjsCghcBhBfO+tldIJAR6uj32BG07QLOjdx1Vn2zxu nAmS2OumRXVC7XTRzanwOxwcerSBlnYtyru8XsHexIfQUgW8Qaj71feSNZG/+o/GFmBq W/JP3KCudqy2K4VSEFeqaQ0ENiOGQCtAjMFKc/XFtG8181f3ku5yRJDycQpLcaEQPr5M 2hTA== X-Gm-Message-State: APjAAAWhQQum6p18IA2kq8HK3xvUCfQU+KmIrHmGlC7XghTER+L+0286 xgLiEaD6GqyrGCt2F53LVOENDavj6o+TVENlGnDTS6OkST+Y MIME-Version: 1.0 X-Received: by 2002:a05:6602:9:: with SMTP id b9mr10562226ioa.133.1556035560840; Tue, 23 Apr 2019 09:06:00 -0700 (PDT) Date: Tue, 23 Apr 2019 09:06:00 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000dca2f3058734c255@google.com> Subject: Re: general protection fault in __dev_printk From: syzbot To: andreyknvl@google.com, dvyukov@google.com, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, rafael@kernel.org, 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+2eb9121678bdb36e6d57@syzkaller.appspotmail.com Tested on: commit: d34f9519 usb-fuzzer: main usb gadget fuzzer driver git tree: https://github.com/google/kasan/tree/usb-fuzzer kernel config: https://syzkaller.appspot.com/x/.config?x=c73d1bb5aeaeae20 compiler: gcc (GCC) 9.0.0 20181231 (experimental) patch: https://syzkaller.appspot.com/x/patch.diff?x=15909780a00000 Note: testing is done by a robot and is best-effort only.