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Bug #80442 Running maxima using exec results in segfault
Submitted: 2020-11-29 03:24 UTC Modified: 2020-12-06 04:22 UTC
From: fadykamel902 at gmail dot com Assigned:
Status: No Feedback Package: Program Execution
PHP Version: 7.4.13 OS: Ubuntu 20.04
Private report: No CVE-ID: None
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 [2020-11-29 03:24 UTC] fadykamel902 at gmail dot com 
Description:
------------
This used to work just fine in older versions of PHP/Ubuntu/Maxima

If I try to run maxima from php exec() I'll get a segmentation fault, no matter how simple the input file is.

Test script:
---------------
<?php
   exec("/usr/bin/maxima -b /tmp/testInput.txt > /tmp/testOutput.txt");
   // replace /usr/bin/maxima with your maxima path
   // testInput.txt contains the text "1+1;"
?>

Actual result:
--------------
Segmentation fault

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 [2020-11-29 03:36 UTC] requinix@php.net
-Status: Open +Status: Feedback -Package: Unknown/Other Function +Package: Program Execution
 [2020-11-29 03:36 UTC] requinix@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.

It's not clear from the description, but I assume the segfault is with PHP and not maxima?
 [2020-12-06 04:22 UTC] php-bugs at lists dot php dot net 
No feedback was provided. The bug is being suspended because
we assume that you are no longer experiencing the problem.
If this is not the case and you are able to provide the
information that was requested earlier, please do so and
change the status of the bug back to "Re-Opened". Thank you.
 
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