#14833 [Ana->Csd]: Crash with referense in bogus code

ID: 14833 Updated by: iliaa@php.net Reported By: sitnikov@infonet.ee -Status: Analyzed +Status: Closed Bug Type: Scripting Engine problem Operating System: Linux PHP Version: 4.1.1 New Comment: This bug has been fixed in CVS. In case this was a PHP problem, snapshots of the sources are packaged every three hours; this change will be in the next snapshot. You can grab the snapshot at http://snaps.php.net/. In case this was a documentation problem, the fix will show up soon at http://www.php.net/manual/. In case this was a PHP.net website problem, the change will show up on the PHP.net site and on the mirror sites in short time. Thank you for the report, and for helping us make PHP better. Previous Comments: ------------------------------------------------------------------------ [2002-01-09 22:00:10] yohgaki@php.net Verified. ------------------------------------------------------------------------ [2002-01-03 16:24:53] sitnikov@infonet.ee <? function &foo(&$str) { //$str = str_replace("a", "b", $str); // line * return $str; } echo $str = &foo($str = "aaaaaaaaa"); ?> If uncommect line *, we not have 'Segmentation', but have unpredictable behavior. P.S. I know that it bogus code (gdb) run -f 1.php Starting program: php -f ~/public_html/test/1.php Program received signal SIGSEGV, Segmentation fault. chunk_free (ar_ptr=0x4060adc0, p=0x82dc080) at malloc.c:3049 3049 malloc.c: No such file or directory. in malloc.c (gdb) bt #0 chunk_free (ar_ptr=0x4060adc0, p=0x82dc080) at malloc.c:3049 #1 0x40575f9a in __libc_free (mem=0x82dc088) at malloc.c:3023 #2 0x080c800b in _efree (ptr=0x82dc094) at zend_alloc.c:246 #3 0x080c84a1 in shutdown_memory_manager (silent=1, clean_cache=0) at zend_alloc.c:469 #4 0x080772e4 in php_request_shutdown (dummy=0x0) at main.c:742 #5 0x080737ef in main (argc=3, argv=0xbffff9a4) at cgi_main.c:776 #6 0x405349cb in __libc_start_main (main=0x8072ebc <main>, argc=3, argv=0xbffff9a4, init=0x806ffa8 <_init>, fini=0x81b1ff0 <_fini>, rtld_fini=0x4000aea0 <_dl_fini>, stack_end=0xbffff99c) at ../sysdeps/generic/libc-start.c:92 ------------------------------------------------------------------------ -- Edit this bug report at http://bugs.php.net/?id=14833&edit=1