[php-src] Issue #15020: The file /php-src/Zend/Optimizer/escape_analysis.c has a memory leak defect at line 417

From: Date: Fri, 19 Jul 2024 10:57:57 +0000
Subject: [php-src] Issue #15020: The file /php-src/Zend/Optimizer/escape_analysis.c has a memory leak defect at line 417
Groups: php.bugs 
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Issue: https://github.com/php/php-src/issues/15020 Author: LuMingYinDetect ### Description In the file /php-src/Zend/Optimizer/escape_analysis.c, at line 387, a pointer variable named ees is defined. At line 411, this variable allocates a dynamic memory area using the do_alloca function. If the conditional statement at line 412 evaluates to false, it indicates that the dynamic memory allocation pointed to by ees was successful. However, if the conditional statement at line 416 evaluates to true, the function will return at line 417, bypassing the deallocation of the dynamic memory area pointed to by ees at line 532. This situation constitutes a memory leak, as illustrated in the diagram below: https://github.com/LuMingYinDetect/php_defects/blob/main/php_1.png ### PHP Version PHP 8.4.0 ### Operating System Ubuntu 22.04

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