Re: [PHP-DEV] PHP4 Bug #1768: Code crashes PHP when it tries to print warning From: Andi Gutmans (andi <email protected>)
Date: 09/28/99

This works for me on Win32.
Does this also happen before by libzend patch?

Andi

At 08:55 PM 7/20/99 +0000, zmievski <email protected> wrote:
>From: zmievski <email protected>
>Operating system: Solaris 2.7
>PHP version: 4.0 Beta 1
>PHP Bug Type: Reproduceable crash
>Bug description: Code crashes PHP when it tries to print warning
>
>Running the following piece of code results in a segmentation fault.
>
><?
>$ar = preg_split("/<\/?[^>]+>/", "<a href='test'>a <b>test</b> of this
>function</a>");
>print "$ar[0], $ar[1], $ar[2], $ar[3], $ar[4], $ar[5]\n";
>?>
>
>Backtrace:
>
>(gdb) bt
>#0 0xff136c5c in strlen () from /usr/lib/libc.so.1
>#1 0xff17ec20 in _doprnt () from /usr/lib/libc.so.1
>#2 0xff180c18 in vsprintf () from /usr/lib/libc.so.1
>#3 0x1383c in php3_printf (
> format=0xa4b60 "<br>\n<b>%s</b>: %s in <b>%s</b> on line
> <b>%d</b><br>\n")
> at main.c:329
>#4 0x13ad8 in php3_error (type=8, format=0xb74a0 "Undefined index: %s")
> at main.c:421
>#5 0x33e44 in zend_fetch_dimension_address_inner (ht=0x1395a0, op2=0x1410c0,
> Ts=0xffbeecf8, type=0) at zend_execute.c:459
>#6 0x34308 in zend_fetch_dimension_address (result=0x141080, op1=0x146118,
> op2=0x1410c0, Ts=0xffbeecf8, type=0) at zend_execute.c:602
>#7 0x35578 in execute (op_array=0x140130) at zend_execute.c:1086
>#8 0x14d00 in php_execute_script (primary_file=0xffbef0f8) at main.c:1121
>#9 0x1ab7c in main (argc=3, argv=0xffbef17c) at cgi_main.c:448
>
>
>I guess it's trying to print a warning, but error_filename ends up being
>NULL. This makes it crash, on Solaris at least.
>
>
>
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---
Andi Gutmans <andi <email protected>>
http://www.zend.com/

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