Bug #76524 [NEW]: ZipArchive memory leak (OVERWRITE flag and empty archive)

From: timok at ya dot ru Operating system: PHP version: 5.6.36 Package: Zip Related Bug Type: Bug Bug description:ZipArchive memory leak (OVERWRITE flag and empty archive) Description: ------------ The memory leak occurs when - ZipArchive is opened with ZipArchive::CREATE|ZipArchive::OVERWRITE flags, - it's empty, - it's destroyed without explicit close() method call. The leak does not occur if zip-file already exist. All PHP versions are affected. Test script: --------------- $zip = new ZipArchive(); $zip->open(__DIR__.'/nonexistent.zip', ZipArchive::CREATE | ZipArchive::OVERWRITE); Expected result: ---------------- Done Warning: Unknown: Cannot destroy the zip context in Unknown on line 0 Actual result: -------------- Done Warning: Unknown: Cannot destroy the zip context in Unknown on line 0 [Sun Jun 24 20:52:32 2018] Script: '...' /.../php-src/ext/zip/php_zip.c(1141) : Freeing 0x7FED6E9998B8 (80 bytes), script=... [Sun Jun 24 20:52:32 2018] Script: '...' /.../php-src/main/fopen_wrappers.c(808) : Freeing 0x7FED6E99A090 (41 bytes), script=... === Total 2 memory leaks detected === -- Edit bug report at https://bugs.php.net/bug.php?id=76524&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=76524&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=76524&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=76524&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=76524&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=76524&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=76524&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=76524&r=needscript Try newer version: https://bugs.php.net/fix.php?id=76524&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=76524&r=support Expected behavior: https://bugs.php.net/fix.php?id=76524&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=76524&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=76524&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=76524&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=76524&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=76524&r=dst IIS Stability: https://bugs.php.net/fix.php?id=76524&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=76524&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=76524&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=76524&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=76524&r=mysqlcfg