From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx2.suse.de ([195.135.220.15]:49582 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752010AbdESNzk (ORCPT ); Fri, 19 May 2017 09:55:40 -0400 From: Johannes Thumshirn To: Omar Sandoval Cc: Linux Block Layer Mailinglist , Linux SCSI Mailinglist , Johannes Thumshirn Subject: [PATCH blktests v2 3/3] sg/001: add regression test for syzcaller generated GPF in sg_read path Date: Fri, 19 May 2017 15:55:31 +0200 Message-Id: <79600648b662bc8b9e701ff6627986887384585b.1495201975.git.jthumshirn@suse.de> In-Reply-To: References: In-Reply-To: References: Sender: linux-block-owner@vger.kernel.org List-Id: linux-block@vger.kernel.org Add a regression test for commit 48ae8484e9fc ("scsi: sg: don't return bogus Sg_requests"). This is a general protection fault triggered by syzcaller via issuing bogus read(2)s on the /dev/sg devices. Signed-off-by: Johannes Thumshirn --- tests/sg/001 | 47 +++++++++++++++++++++++++++++++++++++++++++++++ tests/sg/001.out | 2 ++ 2 files changed, 49 insertions(+) create mode 100755 tests/sg/001 create mode 100644 tests/sg/001.out diff --git a/tests/sg/001 b/tests/sg/001 new file mode 100755 index 000000000000..86430409b6a3 --- /dev/null +++ b/tests/sg/001 @@ -0,0 +1,47 @@ +#!/bin/bash +# +# Regression test for commit 48ae8484e9fc ("scsi: sg: don't return bogus +# Sg_requests") +# +# Copyright (C) 2017 Johannes Thumshirn +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +. common/sg +. common/scsi_debug + +DESCRIPTION="try triggering a kernel GPF with 0 byte SG reads" +QUICK=1 + +requires() { + _have_program src/sg-001 \ + && _have_scsi_debug \ + && _have_scsi_generic +} + + +test() { + echo "Running ${TEST_NAME}" + + if ! _get_scsi_debug_dev; then + return 1 + fi + + SG_DEV=$(_get_sg_from_blockdev "$SCSI_DEBUG_NAME") + timeout -s INT 10s ./src/sg-001 "$SG_DEV" + + _put_scsi_debug_dev + + echo "Test complete" +} diff --git a/tests/sg/001.out b/tests/sg/001.out new file mode 100644 index 000000000000..beb4c437dd28 --- /dev/null +++ b/tests/sg/001.out @@ -0,0 +1,2 @@ +Running sg/001 +Test complete -- 2.12.0