-
Notifications
You must be signed in to change notification settings - Fork 7.7k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
7 changed files
with
120 additions
and
31 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,77 @@ | ||
/* | ||
+----------------------------------------------------------------------+ | ||
| Copyright (c) The PHP Group | | ||
+----------------------------------------------------------------------+ | ||
| This source file is subject to version 3.01 of the PHP license, | | ||
| that is bundled with this package in the file LICENSE, and is | | ||
| available through the world-wide-web at the following url: | | ||
| http://www.php.net/license/3_01.txt | | ||
| If you did not receive a copy of the PHP license and are unable to | | ||
| obtain it through the world-wide-web, please send a note to | | ||
| license@php.net so we can mail you a copy immediately. | | ||
+----------------------------------------------------------------------+ | ||
| Authors: Johannes Schlüter <johanes@php.net> | | ||
| Stanislav Malyshev <stas@php.net> | | ||
+----------------------------------------------------------------------+ | ||
*/ | ||
|
||
#include <main/php.h> | ||
#include <main/php_main.h> | ||
#include <main/SAPI.h> | ||
#include <ext/standard/info.h> | ||
#include <ext/standard/php_var.h> | ||
#include <main/php_variables.h> | ||
|
||
#include "fuzzer.h" | ||
#include "fuzzer-sapi.h" | ||
|
||
#define MAX_STEPS 10000 | ||
static uint32_t steps_left; | ||
|
||
void fuzzer_execute_ex(zend_execute_data *execute_data) { | ||
while (1) { | ||
int ret; | ||
if (--steps_left == 0) { | ||
zend_bailout(); | ||
} | ||
|
||
if ((ret = ((user_opcode_handler_t) EX(opline)->handler)(execute_data)) != 0) { | ||
if (ret > 0) { | ||
execute_data = EG(current_execute_data); | ||
} else { | ||
return; | ||
} | ||
} | ||
} | ||
} | ||
|
||
int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { | ||
char *s; | ||
if (Size > 32 * 1024) { | ||
/* Large inputs have a large impact on fuzzer performance, | ||
* but are unlikely to be necessary to reach new codepaths. */ | ||
return 0; | ||
} | ||
|
||
s = malloc(Size+1); | ||
memcpy(s, Data, Size); | ||
s[Size] = '\0'; | ||
|
||
steps_left = MAX_STEPS; | ||
fuzzer_do_request_from_buffer("/fuzzer.php", s, Size, /* execute */ 1); | ||
|
||
/* Do not free s: fuzzer_do_request_from_buffer() takes ownership of the allocation. */ | ||
return 0; | ||
} | ||
|
||
int LLVMFuzzerInitialize(int *argc, char ***argv) { | ||
/* Compilation will often trigger fatal errors. | ||
* Use tracked allocation mode to avoid leaks in that case. */ | ||
putenv("USE_TRACKED_ALLOC=1"); | ||
|
||
fuzzer_init_php(); | ||
zend_execute_ex = fuzzer_execute_ex; | ||
|
||
/* fuzzer_shutdown_php(); */ | ||
return 0; | ||
} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters