From: Operating system: Unix PHP version: 5.3.3 Package: MySQL related Bug Type: Bug Bug description:crash in mysqlnd
Description: ------------ mysqlnd trys to free memory which must not be valid (e.g. if memory_limit prevents that) Test script: --------------- * create a database table with a bunch of string-columns and fill in a lot of data * write a php script which fetches the content of the whole table and stores the content in an array * run the php script in a shell loop which increases the memory limit by a few kB per step. e.g: for i in $(seq 1 100); do let mem=$i*100000; echo $mem; ./sapi/cli/php -dmemory_limit=$mem crash.php; done Expected result: ---------------- no crash Actual result: -------------- (gdb) bt #0 0x0838b494 in mysqlnd_palloc_zval_ptr_dtor () #1 0x0838bbc2 in php_mysqlnd_res_free_buffered_data_pub () #2 0x0838be4a in php_mysqlnd_res_free_result_buffers_pub () #3 0x0838bf4f in mysqlnd_internal_free_result_contents () #4 0x0838bfa8 in mysqlnd_internal_free_result () #5 0x0838f984 in php_mysqlnd_res_free_result_pub () #6 0x081ef818 in _free_mysql_result () #7 0x08408ecc in list_entry_destructor () #8 0x08406e2f in zend_hash_apply_deleter () #9 0x08406f13 in zend_hash_graceful_reverse_destroy () #10 0x0840902e in zend_destroy_rsrc_list () #11 0x083fa116 in zend_deactivate () #12 0x0839adfb in php_request_shutdown () #13 0x084b6b22 in main () -- Edit bug report at http://bugs.php.net/bug.php?id=52613&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=52613&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=52613&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=52613&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=52613&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=52613&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=52613&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=52613&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=52613&r=needscript Try newer version: http://bugs.php.net/fix.php?id=52613&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=52613&r=support Expected behavior: http://bugs.php.net/fix.php?id=52613&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=52613&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=52613&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=52613&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=52613&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=52613&r=dst IIS Stability: http://bugs.php.net/fix.php?id=52613&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=52613&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=52613&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=52613&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=52613&r=mysqlcfg
