PHP 4.0 Bug #2320: Calling mysql_close() w/o open database crashes Apache

From: jmeskill@libertydistribution.com Operating system: RedHat Linux 6.0 PHP version: 4.0 Latest CVS (17/09/1999) PHP Bug Type: Reproduceable crash Bug description: Calling mysql_close() w/o open database crashes Apache Running on Apache 1.3.9 as DSO segfaults when using this script... <? mysql_close(); ?> Not a big deal as you should have a db open in order to close it and they close automagically... but shouldn't it just give an error, and not crash apache? :) Here is debug info: (gdb) run -X Starting program: /usr/sbin/httpd -X Program received signal SIGSEGV, Segmentation fault. zendparse () at /home/jmeskill/working/php/php4/./libzend/zend-parser.y:158 (gdb) bt #0 zendparse () at /home/jmeskill/working/php/php4/./libzend/zend-parser.y:158 #1 0xffffffff in ?? () #2 0x2ac80813 in _pcre_match (ht=0, return_value=0x7ffff7a4, list=0x2acfae1c, plist=0x2acfae48, this_ptr=0x0, global=2147481508) at php_pcre.c:424 #3 0x2acba074 in pcre_study (external_re=0x80e62e8, options=718176056, errorptr=0x7ffffb14) at study.c:383 #4 0x2ac768d0 in cfg_scan_buffer (base=0x7ffff95c "\002", size=718176056) at configuration-scanner.c:1574 #5 0x2ac76950 in cfg_scan_bytes ( bytes=0x80e1c24 "ü\e\016\bì\013\016\bdÐ\n\b", len=19) at configuration-scanner.c:1620 #6 0x2ac74bbd in cfg_get_string ( varname=0x80e1c24 "ü\e\016\bì\013\016\bdÐ\n\b", result=0x0) at ./configuration-parser.y:112 #7 0x2ac74c0d in cfg_get_string ( varname=0x80e1c24 "ü\e\016\bì\013\016\bdÐ\n\b", result=0x1) at ./configuration-parser.y:121 #8 0x80542f3 in ap_invoke_handler () #9 0x80675e9 in process_request_internal () #10 0x806764c in ap_process_request () #11 0x805f00e in child_main () #12 0x805f19c in make_child () #13 0x805f2f9 in startup_children () #14 0x805f926 in standalone_main () #15 0x80600a3 in main () #16 0x2ab27cb3 in __libc_start_main (main=0x805fd6c <main>, argc=2, argv=0x7ffffb14, init=0x804e884 <_init>, fini=0x8093d6c <_fini>, rtld_fini=0x2aab5350 <_dl_fini>, stack_end=0x7ffffb0c) at ../sysdeps/generic/libc-start.c:78 (gdb)