Re: [bug in php5.3 cvs] op2 of OP_DATA which after INIT_NS_FCALL_BY_NAME is uninitialized
| From: | Dmitry Stogov | Date: | Fri, 28 Dec 2007 09:47:37 +0000 |
| Subject: | Re: [bug in php5.3 cvs] op2 of OP_DATA which after INIT_NS_FCALL_BY_NAME is uninitialized | ||
| References: | 1 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-34266@lists.php.net to get a copy of this message | ||
Thanks for catching this.
Committed.
Dmitry.
phpxcache wrote:
http://bugs.php.net/bug.php?id=43696 Description: ------------ as you can see in zend_compile.copline->opcode = ZEND_INIT_NS_FCALL_BY_NAME;ZEND_INIT_NS_FCALL_BY_NAME's op1 is initialized, so is op2 .........opline->opcode = ZEND_OP_DATA;ZEND_OP_DATA's op1 is initialized here but op2 is not it may not cause problem in zend executor but may in opcode optimizers/cachers suggested fix: Index: zend_compile.c =================================================================== RCS file: /repository/ZendEngine2/zend_compile.c,v retrieving revision 1.647.2.27.2.41.2.32 diff -u -r1.647.2.27.2.41.2.32 zend_compile.c --- zend_compile.c 27 Dec 2007 13:52:05 -0000 1.647.2.27.2.41.2.32 +++ zend_compile.c 28 Dec 2007 08:56:41 -0000 @@ -1504,6 +1504,7 @@Z_TYPE(opline->op1.u.constant) = IS_STRING; Z_STRLEN(opline->op1.u.constant) =Z_STRLEN(function_name->u.constant) - prefix_len;Z_STRVAL(opline->op1.u.constant) =zend_str_tolower_dup(Z_STRVAL(function_name->u.constant) + prefix_len, Z_STRLEN(opline->op1.u.constant));+ SET_UNUSED(opline->op2); opline->extended_value =zend_hash_func(Z_STRVAL(opline->op1.u.constant), Z_STRLEN(opline->op1.u.constant) + 1);} else { opline->opcode = ZEND_INIT_FCALL_BY_NAME;