projects / apple / dyld.git / blame
| Commit | Line | Data |
|---|---|---|
| 39a8cd10 A |
1 | /* |
| 2 | * Copyright (c) 2009 Apple Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 6 | * This file contains Original Code and/or Modifications of Original Code | |
| 7 | * as defined in and that are subject to the Apple Public Source License | |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 9 | * compliance with the License. Please obtain a copy of the License at | |
| 10 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 11 | * file. | |
| 12 | * | |
| 13 | * The Original Code and all software distributed under the License are | |
| 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 18 | * Please see the License for the specific language governing rights and | |
| 19 | * limitations under the License. | |
| 20 | * | |
| 21 | * @APPLE_LICENSE_HEADER_END@ | |
| 22 | */ | |
| 23 | #include <stdio.h> // fprintf(), NULL | |
| 24 | #include <stdlib.h> // exit(), EXIT_SUCCESS | |
| 25 | #include <mach-o/dyld.h> | |
| 26 | #include <mach/mach.h> | |
| 27 | #include <sys/mman.h> | |
| 412ebb8e A |
28 | #include <dlfcn.h> |
| 29 | #include <Availability.h> | |
| 39a8cd10 A |
30 | |
| 31 | ||
| 32 | #include "test.h" // PASS(), FAIL(), XPASS(), XFAIL() | |
| 33 | ||
| 34 | ||
| 35 | ||
| 36 | int main() | |
| 37 | { | |
| 38 | // allocate two pages | |
| 39 | vm_address_t addr = 0; | |
| 40 | kern_return_t r = vm_allocate(mach_task_self(), &addr, 8192, VM_FLAGS_ANYWHERE); | |
| 41 | if ( r != KERN_SUCCESS ) { | |
| 42 | FAIL("vm_allocate returned %d", r); | |
| 43 | exit(0); | |
| 44 | } | |
| 45 | // mark the second page unreadable | |
| 46 | mprotect((char*)(addr+4096), 4096, 0); | |
| 47 | // copy a string to the end of the first page | |
| 48 | char* sym = (char*)(addr+4096-5); | |
| 49 | strcpy(sym, "_abd"); | |
| 50 | ||
| 51 | // call a dyld API that uses the string | |
| 52 | // if dyld reads past the end of the string, it will crash | |
| 53 | // <rdar://problem/6493245> trie parser can read past end of input symbol name | |
| 412ebb8e | 54 | #if defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && (__MAC_OS_X_VERSION_MIN_REQUIRED <= __MAC_10_5) |
| 39a8cd10 | 55 | _dyld_lookup_and_bind(sym, NULL, NULL); |
| 412ebb8e A |
56 | #else |
| 57 | dlsym(RTLD_DEFAULT, sym); | |
| 58 | #endif | |
| 39a8cd10 A |
59 | PASS("trie-symbol-overrun"); |
| 60 | return EXIT_SUCCESS; | |
| 61 | } |