1# Copyright (c) 2018 The NetBSD Foundation, Inc. 2# All rights reserved. 3# 4# This code is derived from software contributed to The NetBSD Foundation 5# by Yang Zheng. 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26# POSSIBILITY OF SUCH DAMAGE. 27# 28 29test_target() 30{ 31 SUPPORT='n' 32 if uname -m | grep -q "amd64" && command -v c++ >/dev/null 2>&1 && \ 33 ! echo __clang__ | c++ -E - | grep -q __clang__; then 34 # only clang with major version newer than 7 is supported 35 CLANG_MAJOR=`echo __clang_major__ | c++ -E - | grep -o '^[[:digit:]]'` 36 if [ "$CLANG_MAJOR" -ge "7" ]; then 37 SUPPORT='y' 38 fi 39 fi 40} 41 42atf_test_case oom 43oom_head() { 44 atf_set "descr" "Test thread sanitizer for out-of-memory condition" 45 atf_set "require.progs" "c++ paxctl" 46} 47 48atf_test_case oom_profile 49oom_profile_head() { 50 atf_set "descr" "Test thread sanitizer for out-of-memory with profiling option" 51 atf_set "require.progs" "c++ paxctl" 52} 53atf_test_case oom_pic 54oom_pic_head() { 55 atf_set "descr" "Test thread sanitizer for out-of-memory with position independent code (PIC) flag" 56 atf_set "require.progs" "c++ paxctl" 57} 58atf_test_case oom_pie 59oom_pie_head() { 60 atf_set "descr" "Test thread sanitizer for out-of-memory with position independent execution (PIE) flag" 61 atf_set "require.progs" "c++ paxctl" 62} 63 64oom_body(){ 65 cat > test.cc << EOF 66#include <stddef.h> 67#include <stdint.h> 68#include <stdlib.h> 69 70extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { 71 if (size > 0 && data[0] == 'b') while (1) malloc(16*1024*1024); 72 return 0; 73} 74EOF 75 76 c++ -fsanitize=fuzzer -o test test.cc 77 paxctl +a test 78 atf_check -s ignore -o ignore -e match:"ERROR: libFuzzer: out-of-memory" ./test -rss_limit_mb=30 79} 80 81oom_profile_body(){ 82 cat > test.cc << EOF 83#include <stddef.h> 84#include <stdint.h> 85#include <stdlib.h> 86 87extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { 88 if (size > 0 && data[0] == 'b') while (1) malloc(16*1024*1024); 89 return 0; 90} 91EOF 92 93 c++ -fsanitize=fuzzer -static -o test -pg test.cc 94 paxctl +a test 95 atf_check -s ignore -o ignore -e match:"ERROR: libFuzzer: out-of-memory" ./test -rss_limit_mb=30 96} 97 98oom_pic_body(){ 99 cat > test.cc << EOF 100#include <stddef.h> 101#include <stdint.h> 102int help(const uint8_t *data, size_t size); 103extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { 104 return help(data, size); 105} 106EOF 107 108 cat > pic.cc << EOF 109#include <stddef.h> 110#include <stdint.h> 111#include <stdlib.h> 112 113int help(const uint8_t *data, size_t size) { 114 if (size > 0 && data[0] == 'b') while (1) malloc(16*1024*1024); 115 return 0; 116} 117EOF 118 119 c++ -fsanitize=fuzzer -fPIC -shared -o libtest.so pic.cc 120 c++ -o test test.cc -fsanitize=fuzzer -L. -ltest 121 paxctl +a test 122 123 export LD_LIBRARY_PATH=. 124 atf_check -s ignore -o ignore -e match:"ERROR: libFuzzer: out-of-memory" ./test -rss_limit_mb=30 125} 126oom_pie_body(){ 127 128 #check whether -pie flag is supported on this architecture 129 if ! c++ -pie -dM -E - < /dev/null 2>/dev/null >/dev/null; then 130 atf_set_skip "c++ -pie not supported on this architecture" 131 fi 132 cat > test.cc << EOF 133#include <stddef.h> 134#include <stdint.h> 135#include <stdlib.h> 136 137extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) { 138 if (size > 0 && data[0] == 'b') while (1) malloc(16*1024*1024); 139 return 0; 140} 141EOF 142 143 c++ -fsanitize=fuzzer -o test -fpie -pie test.cc 144 paxctl +a test 145 atf_check -s ignore -o ignore -e match:"ERROR: libFuzzer: out-of-memory" ./test -rss_limit_mb=30 146} 147 148 149atf_test_case target_not_supported 150target_not_supported_head() 151{ 152 atf_set "descr" "Test forced skip" 153} 154 155target_not_supported_body() 156{ 157 atf_skip "Target is not supported" 158} 159 160atf_init_test_cases() 161{ 162 test_target 163 test $SUPPORT = 'n' && { 164 atf_add_test_case target_not_supported 165 return 0 166 } 167 atf_add_test_case oom 168 atf_add_test_case oom_profile 169 atf_add_test_case oom_pie 170 atf_add_test_case oom_pic 171} 172