Bug #51278 [Opn->Dup]: Crash when using reopened persistent connection after one resource closed

Edit report at https://bugs.php.net/bug.php?id=51278&edit=1 ID: 51278 Updated by: aharvey@php.net Reported by: christopher dot jones at oraclel dot com Summary: Crash when using reopened persistent connection after one resource closed -Status: Open +Status: Duplicate Type: Bug Package: DBM/DBA related Operating System: Linux PHP Version: 5.3SVN-2010-03-12 (SVN) Block user comment: N Private report: N New Comment: I'll close this in favour of bug #61390, since it has more detail. I'll reopen that one momentarily. I don't see assigning a bug to someone at random as being particularly helpful (as #61390 shows, in fact): what's really needed here is a patch or pull request. If someone with php-src karma knowledgeable about dba had time to fix this, I'm sure they would. Previous Comments: ------------------------------------------------------------------------ [2013-05-06 23:32:49] cjashfor at linux dot vnet dot ibm dot com Shouldn't someone at least be assigned to fix this bug? I reported what appears to be an identical bug - 61390 - and it was closed after just a small amount of discussion from the developers, followed by inactivity. ------------------------------------------------------------------------ [2010-03-12 01:17:26] christopher dot jones at oraclel dot com Description: ------------ Do two dba_popen() calls using the same file. Close one resource with dba_close(). Then do a dba_fetch on the still open resource. This results in a crash in flatfile_findkey() with a NULL dba pointer. Program received signal SIGSEGV, Segmentation fault. 0x0817c3b4 in flatfile_findkey (dba=0x0, key_datum=...) at /home/cjones/phpsrc/php/php- src/branches/PHP_5_3/ext/dba/libflatfile/flatfile.c:173 (gdb) bt #0 0x0817c3b4 in flatfile_findkey (dba=0x0, key_datum=...) at /home/cjones/phpsrc/php/php- src/branches/PHP_5_3/ext/dba/libflatfile/flatfile.c:173 #1 0x0817bfaa in flatfile_fetch (dba=0x0, key_datum=...) at /home/cjones/phpsrc/php/php- src/branches/PHP_5_3/ext/dba/libflatfile/flatfile.c:91 #2 0x0817a671 in dba_fetch_flatfile (info=0x89abb20, key=0x897b2bc "key1", keylen=4, skip=0, newlen=0xbfffd348) at /home/cjones/phpsrc/php/php- src/branches/PHP_5_3/ext/dba/dba_flatfile.c:70 #3 0x0817871b in zif_dba_fetch (ht=2, return_value=0x897a638, return_value_ptr=0x0, this_ptr=0x0, return_value_used=1) at /home/cjones/phpsrc/php/php-src/branches/PHP_5_3/ext/dba/dba.c:1025 #4 0x0844ccf0 in zend_do_fcall_common_helper_SPEC (execute_data=0x89abcc8) at /home/cjones/phpsrc/php/php-src/branches/PHP_5_3/Zend/zend_vm_execute.h:313 #5 0x084507ae in ZEND_DO_FCALL_SPEC_CONST_HANDLER (execute_data=0x89abcc8) at /home/cjones/phpsrc/php/php-src/branches/PHP_5_3/Zend/zend_vm_execute.h:1603 #6 0x0844c38d in execute (op_array=0x897ac98) at /home/cjones/phpsrc/php/php- src/branches/PHP_5_3/Zend/zend_vm_execute.h:104 #7 0x0841ff12 in zend_execute_scripts (type=8, retval=0x0, file_count=3) at /home/cjones/phpsrc/php/php-src/branches/PHP_5_3/Zend/zend.c:1194 #8 0x083b6c16 in php_execute_script (primary_file=0xbffff7c4) at /home/cjones/phpsrc/php/php-src/branches/PHP_5_3/main/main.c:2260 #9 0x084dd733 in main (argc=2, argv=0xbffff954) at /home/cjones/phpsrc/php/php- src/branches/PHP_5_3/sapi/cli/php_cli.c:1192 Test script: --------------- See ext/dba/tests/dba015.phpt ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=51278&edit=1