Received: by 2002:a25:8b12:0:0:0:0:0 with SMTP id i18csp721261ybl; Fri, 9 Aug 2019 12:47:11 -0700 (PDT) X-Google-Smtp-Source: APXvYqyoRPdTJeWUWSGefk5JXhf6kO82eZVgUJ1yIR/okjRCndQbhirJs4DzP5o4yR2GmVeYhmBN X-Received: by 2002:a63:3203:: with SMTP id y3mr19062589pgy.191.1565380031484; Fri, 09 Aug 2019 12:47:11 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1565380031; cv=none; d=google.com; s=arc-20160816; b=g6EoYWhhbDLYbQ03tteUD4EMm/EMoxoiwtESMWLlCYAretkyjl87Xt1+v8v1+FuEQK LWHX2tLWID/BiikhFQcDoJ7qGgMIzcqrtJbxoPZRPMuD6y2SeDRKP3wfHLEk1W2kY9RT KSr0oWb34BXfJE4WxPQsv/lxxeYY37NFFMoxq+VvXDyNJUhpMCM7Iu7lIA/s0K5udp68 l8P2bXNxQ2Y7m9uyJuUbUN6A1kplwL20JzAYBrXRbpwfyUSVtD75it3HOAi/uoFBjwxJ YS5os7n7C9pMKxof7/WySsfx6r/BogWy7IK0dN9SD2DA9JVcx4exOZEmsh/Me2yUOhw/ 5mzA== 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=QaIRxMgZLoHZ+y2N+TmUy7bCggB90Z3nYkENvxZIHn8=; b=yhbtwYD7lI996dbcksiRZ+J0o3+0BMUjhJd/HHMErafw3TpmssO22ylyRYgK2G48IL ImgNFY8La7ECMUuqGbbLrs7AFIGuOJBTfQ6/TjgX7rZf6dYlTNKt/jmMNxAa6jGR7u7/ iDOKwSx645q8P/yPm6nyaBbJFoeoL/7beBrrkAPgSmvvHnwG9Et8g7PU6ykKup3pZwIO XjDtP6BnT9CzPiQdL1C5bEvdywokubPxOkrcH65MThftLSJId4gmxWnZeOmQcQIqkbax b1E/vpSBe6TkkLObe3IvbxLkgJnE1Q+/KpKDAoO/5IBT73G+xsEt4flmaXXE+FORQfIk rxQw== 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 w24si6882552pll.84.2019.08.09.12.46.56; Fri, 09 Aug 2019 12:47:11 -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 S1726326AbfHITqB (ORCPT + 99 others); Fri, 9 Aug 2019 15:46:01 -0400 Received: from mail-ot1-f71.google.com ([209.85.210.71]:49754 "EHLO mail-ot1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726078AbfHITqB (ORCPT ); Fri, 9 Aug 2019 15:46:01 -0400 Received: by mail-ot1-f71.google.com with SMTP id l7so71013553otj.16 for ; Fri, 09 Aug 2019 12:46:00 -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=QaIRxMgZLoHZ+y2N+TmUy7bCggB90Z3nYkENvxZIHn8=; b=pHIa741BLk7YLvg3Eh8eOO1UIojR2+s6t9fvZecRgrl1AZqrbt+s64d+StreEj+ajh ceQ/YseLNjKYEWWlo/l1rGl3H8bPnVUQB+Vu503lpviKk3M/wUfklUuCMbphsSGEN3RA iMjauIzKylXq5F+VXwvne8t5GqHDxTNlys9UATgZ5fQGgnDBLbgKtXi8rMxxIH6eHnZN QokrGOwukiS35aK/pTaiBejTlo8sPn7uaju5BWW3NVud1OaJKyIfSi77OwAg0g0KrE/u MrLh9jgwwz5lnEkcwQY0VcKpRnyOyc0+Krj3r86k9E4B2Fu554rPLVhKU+1oQckXxYFB 2a4Q== X-Gm-Message-State: APjAAAU/b0Id0Ec669SHqOiroYy5qAzhQsin0QAyhThd26shtDiKQNlJ p9gFUd/bD72Tfw/fF9VLZr7njNL5WqGun1EYDikGDh4B5F3r MIME-Version: 1.0 X-Received: by 2002:a5e:9314:: with SMTP id k20mr23444780iom.235.1565379960645; Fri, 09 Aug 2019 12:46:00 -0700 (PDT) Date: Fri, 09 Aug 2019 12:46:00 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000007e2e84058fb46c49@google.com> Subject: Re: KASAN: use-after-free Read in usb_kill_urb From: syzbot To: andreyknvl@google.com, gregkh@linuxfoundation.org, gustavo@embeddedor.com, linux-kernel@vger.kernel.org, linux-usb@vger.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+22ae4e3b9fcc8a5c153a@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=173f2d2c600000 Note: testing is done by a robot and is best-effort only.