Bug #66386 [Com]: Segmentation fault on imageaffinematrixget

Edit report at https://bugs.php.net/bug.php?id=66386&edit=1 ID: 66386 Comment by: spam2 at rhsoft dot net Reported by: fernando at null-life dot com Summary: Segmentation fault on imageaffinematrixget Status: Open Type: Bug Package: GD related Operating System: Windows PHP Version: 5.5.7 Block user comment: N Private report: N New Comment: PHP 5.5.7 is *horrible* broken and causing *random* segfaults https://bugzilla.redhat.com/show_bug.cgi?id=1049417 after some hours with no segfault after downgrade to 5.5.6 this is *sure* Previous Comments: ------------------------------------------------------------------------ [2014-01-02 05:43:05] fernando at null-life dot com Description: ------------ There are two segfault/read access violation in the GD extension, first one I believe is caused by a missing RETURN_FALSE after php_error_docref in php-5.5.7\ext\gd\gd.c line 5211): case GD_AFFINE_TRANSLATE: case GD_AFFINE_SCALE: { double x, y; if (Z_TYPE_P(options) != IS_ARRAY) { php_error_docref(NULL TSRMLS_CC, E_WARNING, "Array expected as options"); //RETURN_FALSE missing here } if (zend_hash_find(HASH_OF(options), "x", sizeof("x"), (void **)&tmp) //crash here According to docs (http://www.php.net/manual/en/function.imageaffinematrixget.php ) second parameter can be optional and mixed but only seems to work when an Array is passed. Second segfault occurs when no 2nd parameter is passed. Test script: --------------- //Crash because 2nd parameter is not array imageaffinematrixget(IMG_AFFINE_SCALE, 0); //Crash because 2nd parameter doesn't exist imageaffinematrixget(IMG_AFFINE_SCALE); Expected result: ---------------- Not a crash Actual result: -------------- //1st backtrace (b50.3c0): Access violation - code c0000005 (first chance) First chance exceptions are reported before any exception handling. This exception may be expected and handled. eax=005979bd ebx=00000002 ecx=00000000 edx=00000058 esi=6e885c49 edi=6e885c48 eip=6688e8fc esp=009ee154 ebp=00000002 iopl=0 nv up ei pl nz na pe nc cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00210206 php5!zend_hash_find+0xec: 6688e8fc 8b5104 mov edx,dword ptr [ecx+4] ds:002b:00000004=???????? 0:000> k ChildEBP RetAddr 009ee160 6e834380 php5!zend_hash_find+0xec [c:\php-sdk\php55\vc11\x86\php-5.5.7\zend\zend_hash.c @ 922] 009ee1d4 66899971 php_gd2!zif_imageaffinematrixget+0x150 [c:\php-sdk\php55\vc11\x86\php-5.5.7\ext\gd\gd.c @ 5213] 009ee23c 66899075 php5!zend_do_fcall_common_helper_SPEC+0x1b1 [c:\php-sdk\php55\vc11\x86\php-5.5.7\zend\zend_vm_execute.h @ 550] 009ee278 668b052b php5!execute_ex+0x295 [c:\php-sdk\php55\vc11\x86\php-5.5.7\zend\zend_vm_execute.h @ 363] 009ee29c 668b0ede php5!zend_execute+0x14b [c:\php-sdk\php55\vc11\x86\php-5.5.7\zend\zend_vm_execute.h @ 388] 009ee2d0 668b1c7c php5!zend_execute_scripts+0xde [c:\php-sdk\php55\vc11\x86\php-5.5.7\zend\zend.c @ 1320] 009ee550 757ea1e0 php5!php_execute_script+0x14c [c:\php-sdk\php55\vc11\x86\php-5.5.7\main\main.c @ 2489] //2nd backtrace (1384.138c): Access violation - code c0000005 (first chance) First chance exceptions are reported before any exception handling. This exception may be expected and handled. eax=00000001 ebx=00000000 ecx=00000000 edx=00000001 esi=639768c0 edi=00bbc4a0 eip=66b6433b esp=00a6e1f8 ebp=00a6e254 iopl=0 nv up ei pl zr na pe nc cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00210246 *** WARNING: Unable to verify checksum for C:\php\php_gd2.dll php_gd2!zif_imageaffinematrixget+0x10b: 66b6433b 80790c04 cmp byte ptr [ecx+0Ch],4 ds:002b:0000000c=?? *** WARNING: Unable to verify checksum for C:\php\php5.dll *** WARNING: Unable to verify checksum for php.exe 0:000> k ChildEBP RetAddr 00a6e254 63999971 php_gd2!zif_imageaffinematrixget+0x10b [c:\php-sdk\php55\vc11\x86\php-5.5.7\ext\gd\gd.c @ 5210] 00a6e2bc 63999075 php5!zend_do_fcall_common_helper_SPEC+0x1b1 [c:\php-sdk\php55\vc11\x86\php-5.5.7\zend\zend_vm_execute.h @ 550] 00a6e2f8 639b052b php5!execute_ex+0x295 [c:\php-sdk\php55\vc11\x86\php-5.5.7\zend\zend_vm_execute.h @ 363] 00a6e31c 639b0ede php5!zend_execute+0x14b [c:\php-sdk\php55\vc11\x86\php-5.5.7\zend\zend_vm_execute.h @ 388] 00a6e350 639b1c7c php5!zend_execute_scripts+0xde [c:\php-sdk\php55\vc11\x86\php-5.5.7\zend\zend.c @ 1320] 00a6e5d0 757ea1e0 php5!php_execute_script+0x14c [c:\php-sdk\php55\vc11\x86\php-5.5.7\main\main.c @ 2489] ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=66386&edit=1