Bug #72476 [NEW]: Memleak in jit_stack

From: laruence Operating system: PHP version: 7.0.7 Package: PCRE related Bug Type: Bug Bug description:Memleak in jit_stack Description: ------------ none Test script: --------------- <?php preg_match("#test#", ""); Expected result: ---------------- non memleak Actual result: -------------- ==9175== 32 bytes in 1 blocks are definitely lost in loss record 16 of 35 ==9175== at 0x4C27A2E: malloc (vg_replace_malloc.c:270) ==9175== by 0x4D2200: sljit_allocate_stack (sljitUtils.c:236) ==9175== by 0x500FC6: pcre_jit_stack_alloc (pcre_jit_compile.c:10614) ==9175== by 0x502265: zm_activate_pcre (php_pcre.c:220) ==9175== by 0xA7D844: zend_activate_modules (zend_API.c:2543) ==9175== by 0x9DEF61: php_request_startup (main.c:1629) ==9175== by 0xB48677: main (cgi_main.c:2318) -- Edit bug report at https://bugs.php.net/bug.php?id=72476&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=72476&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=72476&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=72476&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=72476&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=72476&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=72476&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=72476&r=needscript Try newer version: https://bugs.php.net/fix.php?id=72476&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=72476&r=support Expected behavior: https://bugs.php.net/fix.php?id=72476&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=72476&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=72476&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=72476&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=72476&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=72476&r=dst IIS Stability: https://bugs.php.net/fix.php?id=72476&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=72476&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=72476&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=72476&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=72476&r=mysqlcfg