1 /*- 2 * Copyright (c) 2020 Ben Wagner 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 #include "test.h" 26 __FBSDID("$FreeBSD$"); 27 28 /* 29 * The pax size attribute can be used to override the size. 30 * It should be validated the same way the normal size is validated. 31 * The test data is fuzzer output from 32 * https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=48467 . 33 */ 34 DEFINE_TEST(test_read_format_tar_invalid_pax_size) 35 { 36 /* 37 * An archive that contains a PAX 'size' record with a large negative value. 38 */ 39 struct archive_entry *ae; 40 struct archive *a; 41 const char *refname = "test_read_format_tar_invalid_pax_size.tar"; 42 43 extract_reference_file(refname); 44 assert((a = archive_read_new()) != NULL); 45 assertEqualInt(ARCHIVE_OK, archive_read_support_filter_all(a)); 46 assertEqualInt(ARCHIVE_OK, archive_read_support_format_all(a)); 47 assertEqualIntA(a, ARCHIVE_OK, archive_read_open_filename(a, refname, 10240)); 48 /* This assert will pass a normal debug build without the pax size check. */ 49 /* Run this test with `-fsanitize=undefined` to verify. */ 50 assertEqualIntA(a, ARCHIVE_FATAL, archive_read_next_header(a, &ae)); 51 assertEqualIntA(a, ARCHIVE_OK, archive_read_close(a)); 52 assertEqualInt(ARCHIVE_OK, archive_read_free(a)); 53 } 54