#43696 [NEW]: op2 of OP_DATA which after INIT_NS_FCALL_BY_NAME is uninitialized

From: Date: Fri, 28 Dec 2007 09:07:59 +0000
Subject: #43696 [NEW]: op2 of OP_DATA which after INIT_NS_FCALL_BY_NAME is uninitialized
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From: phpxcache at gmail dot com Operating system: linux PHP version: 5.3CVS-2007-12-28 (CVS) PHP Bug Type: Scripting Engine problem Bug description: op2 of OP_DATA which after INIT_NS_FCALL_BY_NAME is uninitialized Description: ------------ as you can see in zend_compile.c opline->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; -- Edit bug report at http://bugs.php.net/?id=43696&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=43696&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=43696&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=43696&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=43696&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=43696&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=43696&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=43696&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=43696&r=needscript Try newer version: http://bugs.php.net/fix.php?id=43696&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=43696&r=support Expected behavior: http://bugs.php.net/fix.php?id=43696&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=43696&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=43696&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=43696&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=43696&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=43696&r=dst IIS Stability: http://bugs.php.net/fix.php?id=43696&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=43696&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=43696&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=43696&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=43696&r=mysqlcfg

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