Received: by 2002:a25:8b12:0:0:0:0:0 with SMTP id i18csp614052ybl; Fri, 9 Aug 2019 10:54:08 -0700 (PDT) X-Google-Smtp-Source: APXvYqxgYQf9GbhEdEsT7MI0O9J3gaefMVlZk4uh9ywF5UMZiBaa8beQWAH5ip6KedWlHnMCiu9w X-Received: by 2002:a17:902:a60d:: with SMTP id u13mr20486458plq.144.1565373248421; Fri, 09 Aug 2019 10:54:08 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1565373248; cv=none; d=google.com; s=arc-20160816; b=V2w8pxx3D0vCWqIvQWfXd2WYzkSE3/NwdNKoFKZItWzyGgPgY14LUsjKEDfKe8gWZR qUNrg6lYPv3ENFqyFIJxvcF7s9fZR5+u7qrPXwkSTxNwLx2WBbrPvi/52ryB6hq9D8ej tBJC1Hzvj6/lOVos7sPYccYkCbjw44JedmCwE9dGIMCFU3fm9RE8yfrRFXW/ySzHXShy k1I2t/vK04qRh+Fz5M3oZGlZ6e0CXyVRE7UvnZR9dPSR91G2R6SdzItDnxg1DX3xL+rH jqASQX+1fxG9v1kv3rODYyPiwQBnCjopcirJRF7QwC9vJ0LIOi0u2zX42eMl0dhc1j87 RuSg== 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=zfLUeixZ0xxyCbY54z0hYvSD6TcuS24V1c/+Vq6E3hY=; b=SKDw5rrwHukxiYqCBq5OzDanxmVehMLblBAFaMc8q6npg1vXT8vsLa8lwCvssk1kWq DwHdPulKJXRJ/LPDUg3yo1hJBmYfhf+86OyqNQ4PJANfn/zAdFkDTpjLbZWVx955cY06 JJHdN2M2GjRv5CPDpxJvda/p1t173PQ0PgFmissYLIxi/hlXpFCr1M81Si0oR5zGBG7R JPgMv7HFjsnDxNZsNI0vFowuZ6pnNy5Y5tntSHB6gTM973EfWjbgAZ/+YqytDSK817jp DnlYlhdiOipX19xFWK4MKgJSuKcUQUlsBytVR3z1rMAwXUr4yiBiCv8eg1Pb7RQqEYA8 Dj+A== 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 71si50316546plf.156.2019.08.09.10.53.52; Fri, 09 Aug 2019 10:54:08 -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 S2436801AbfHIRxB (ORCPT + 99 others); Fri, 9 Aug 2019 13:53:01 -0400 Received: from mail-ot1-f70.google.com ([209.85.210.70]:40390 "EHLO mail-ot1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726628AbfHIRxB (ORCPT ); Fri, 9 Aug 2019 13:53:01 -0400 Received: by mail-ot1-f70.google.com with SMTP id o21so2388356otj.7 for ; Fri, 09 Aug 2019 10:53:00 -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=zfLUeixZ0xxyCbY54z0hYvSD6TcuS24V1c/+Vq6E3hY=; b=PXWLldl6pRrlf7a5x+CKF04RP8Jn8wv+ekg04GyDbP532kcxXWaJBKYyfuI5Gkv+OV jbRYsvG4DGcBdhCMPZBeowG9VcsH8I4WQAg6n0s9/xePwR1+3szrZDL4rq/I9cdevFub ftsOQaoTP01+3Zjk8YoTozKuNzz/2FM0kIJWHmPI/Ydm4KAwj6U6CBbqGzHcGC7B2D6s DbiqudFn2K4p14EDpmM9xYheuICWMk2i5jgKPKCel5f9FJjfLMomd5H2E2L6qy4K1/5m EhLo7O+x3PT9fDmKWku5faE6hJ4frImDkgcgrjsJS2MsfgVDID3oHokpvA+CWOSUyGQM QMhQ== X-Gm-Message-State: APjAAAUjFu0oiRHk1J/WNxQm/2DgZ1CB47AfEpjaUPdKlUGpyA+1s2Ws Acr5KaUXY92+yZtvjZkm1kh/JYgL+8zEoDBPYdNJ7yZsbK/+ MIME-Version: 1.0 X-Received: by 2002:a02:1087:: with SMTP id 129mr24265518jay.131.1565373180454; Fri, 09 Aug 2019 10:53:00 -0700 (PDT) Date: Fri, 09 Aug 2019 10:53:00 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005cb00c058fb2d840@google.com> Subject: Re: KASAN: use-after-free Read in ld_usb_release From: syzbot To: andreyknvl@google.com, bhelgaas@google.com, greg@kroah.com, kirr@nexedi.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux@roeck-us.net, lkundrak@v3.sk, logang@deltatee.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+30cf45ebfe0b0c4847a1@syzkaller.appspotmail.com Tested on: commit: e96407b4 usb-fuzzer: main usb gadget fuzzer driver git tree: https://github.com/google/kasan.git kernel config: https://syzkaller.appspot.com/x/.config?x=cfa2c18fb6a8068e compiler: gcc (GCC) 9.0.0 20181231 (experimental) patch: https://syzkaller.appspot.com/x/patch.diff?x=15b4c802600000 Note: testing is done by a robot and is best-effort only.