Bug #14692 Updated: Crash

ID: 14692 Updated by: derick Reported By: sitnikov@infonet.ee Old Status: Open Status: Closed Bug Type: mcrypt related Operating System: Linux PHP Version: 4.1.0 New Comment: This is not a PHP bug, but in libmcrypt. I reported this to the author of the library. This is the C code I used for it: #include <unistd.h> #include <mcrypt.h> void main (void) { int res; res = mcrypt_module_is_block_algorithm ("gost", NULL); } This one works, the next does not (segfaults): #include <unistd.h> #include <mcrypt.h> void main (void) { int res; res = mcrypt_module_is_block_algorithm_mode ("gost", NULL); } regards, Derick Previous Comments: ------------------------------------------------------------------------ [2001-12-25 11:18:30] sitnikov@infonet.ee i use php-4.1.1 ------------------------------------------------------------------------ [2001-12-25 11:18:16] sitnikov@infonet.ee I know what it is buggy script, but it not the justification for "Segmentation". Your script work for me and print "false" ------------------------------------------------------------------------ [2001-12-25 11:09:03] derick@php.net Hello, your script is buggy, GOST, is not a mode, but an algorithm. It indeed crashes with this code, but to me it seems like it is an libmcrypt problem. If you use this: <? if (mcrypt_module_is_block_algorithm(MCRYPT_GOST)) echo "true\n"; else echo "false\n"; ?> it works, but it returns true if it is NOT a block algorithm, which is a bug in the extension. (mcrypt returns 1 if it is a block algorithm). Can you confirm that it does not crash with the script I pasted? Derick ------------------------------------------------------------------------ [2001-12-25 10:29:26] sitnikov@infonet.ee libmcrypt-2.4.18 ------------------------------------------------------------------------ [2001-12-25 10:13:04] sitnikov@infonet.ee Crash to: <? if (mcrypt_module_is_block_algorithm_mode(MCRYPT_GOST)) echo "true\n"; else echo "false\n"; ?> (gdb) bt #0 0x00000000 in ?? () #1 0x4023d8de in mcrypt_module_is_block_algorithm_mode (mode=0x83c1d34 "gost", m_directory=0x0) at mcrypt_modules.c:610 #2 0x0814d1bf in zif_mcrypt_module_is_block_algorithm_mode (ht=1, return_value=0x83c1d6c, this_ptr=0x0, return_value_used=1) at mcrypt.c:876 #3 0x081aae6a in execute (op_array=0x83c1e8c) at ./zend_execute.c:1590 #4 0x080e5239 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at zend.c:814 #5 0x080801c1 in php_execute_script (primary_file=0xbffff7f0) at main.c:1307 #6 0x0807a8cc in main (argc=3, argv=0xbffff864) at cgi_main.c:738 #7 0x404f19cb in __libc_start_main (main=0x8079f34 <main>, argc=3, argv=0xbffff864, init=0x8076e1c <_init>, fini=0x82310d0 <_fini>, rtld_fini=0x4000aea0 <_dl_fini>, stack_end=0xbffff85c) at ../sysdeps/generic/libc-start.c:92 ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/?id=14692 Edit this bug report at http://bugs.php.net/?id=14692&edit=1