Bug #71910 [Com]: Too many concatinations in a single statement crashes Apache

Edit report at https://bugs.php.net/bug.php?id=71910&edit=1 ID: 71910 Comment by: ksours at internetbrands dot com Reported by: ksours at internebrands dot com Summary: Too many concatinations in a single statement crashes Apache Status: Feedback Type: Bug Package: Apache2 related Operating System: Windows7 64bit PHP Version: 7.0.4 Block user comment: N Private report: N New Comment: Note that I've removed a large number of repeated lines because its quite long and I think you get the message. Total line count of the traces is 2508. Entry point libhttpd!ap_run_generate_log_id+3db0 Create time 4/4/2016 6:15:01 PM Time spent in user mode 0 Days 00:00:00.000 Time spent in kernel mode 0 Days 00:00:00.031 This thread is not fully resolved and may or may not be a problem. Further analysis of these threads may be required. php7ts!zend_compile_binary_op+10 php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 ... php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 php7ts!zend_compile_binary_op+33 php7ts!zend_compile_expr+155 php7ts!zend_compile_assign+a5 php7ts!zend_compile_expr+125 php7ts!zend_compile_stmt+162 php7ts!zend_compile_top_stmt+23 php7ts!zend_compile_top_stmt+9c php7ts!compile_file+17e php7ts!phar_compile_file+30c php7ts!zend_execute_scripts+86 php7ts!php_execute_script+4c6 php7apache2_4!php_handler+579 libhttpd!ap_run_handler+35 libhttpd!ap_invoke_handler+110 libhttpd!ap_internal_redirect_handler+29a libhttpd!ap_process_request+17 libhttpd!ap_byterange_filter+152f libhttpd!ap_run_process_connection+35 libhttpd!ap_run_generate_log_id+3f24 kernel32!BaseThreadInitThunk+d ntdll!RtlUserThreadStart+1d Exception Information PHP7TS!ZEND_COMPILE_BINARY_OP+10In httpd__PID__11296__Date__04_04_2016__Time_06_16_39PM__900__Second_Chance_Exception_C00000FD.dmp the assembly instruction at php7ts!zend_compile_binary_op+10 in C:\programming\applications\php704_64\php7ts.dll from The PHP Group has caused a stack overflow exception (0xC00000FD) when trying to write to memory location 0x02643ff8 on thread 3 Previous Comments: ------------------------------------------------------------------------ [2016-03-29 16:33:08] ksours at internetbrands dot com It doesn't seem to matter if its there or not. I left it in because it's weirder that way. I will attempt to download the tool and get the stacktrace. ------------------------------------------------------------------------ [2016-03-29 16:28:49] ab@php.net Yeah, it was linking to an older tool version. I've just updated it, it should be https://www.microsoft.com/en-us/download/details.aspx?id=49924 . Ok, so you mean the presence of exit; is explicitly required to reproduce the crash. I reproduced no issue neither with nor without it, that's why i mentioned it. So it'd be better to see the backtrace it shows for you. Thanks. ------------------------------------------------------------------------ [2016-03-29 15:04:46] ksours at internebrands dot com Attempted to download the diagnostic tool from the link your provided. Got directed here. https://www.microsoft.com/library/errorpages/smarterror.aspx ------------------------------------------------------------------------ [2016-03-29 14:40:48] ksours at internetbrands dot com The exit is intentional, as I noted in my initial report. The script, as generated, will crash Apache. It also doesn't matter if there are parse errors or non existent functions -- at least in certain places -- within the script. I didn't spend a lot of time investigating that, it was just something I noticed while simplifying the script. ------------------------------------------------------------------------ [2016-03-29 12:38:30] ab@php.net Thank you for this bug report. To properly diagnose the problem, we need a backtrace to see what is happening behind the scenes. To find out how to generate a backtrace, please read http://bugs.php.net/bugs-generating-backtrace.php for *NIX and http://bugs.php.net/bugs-generating-backtrace-win32.php for Win32 Once you have generated a backtrace, please submit it to this bug report and change the status back to "Open". Thank you for helping us make PHP better. Please note also that your generator writes an exit; before anything in the script happens. Thanks. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=71910 -- Edit this bug report at https://bugs.php.net/bug.php?id=71910&edit=1