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Bug #80811 Function exec without $output but with $restult_code parameter crashes
Submitted: 2021-02-28 02:30 UTC Modified: 2021-03-01 14:02 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:0 (0.0%)
From: carlosv775 at gmail dot com Assigned: nikic (profile)
Status: Closed Package: Reproducible crash
PHP Version: 8.0.2 OS:
Private report: No CVE-ID: None
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From: carlosv775 at gmail dot com
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 [2021-02-28 02:30 UTC] carlosv775 at gmail dot com
Description:
------------
If we execute the function `exec` passing the `$result_code` but not passing the `$output`, it gives us a segfault error. This was discovered here:
https://github.com/cviniciussdias/php-text-to-speech/issues/2

And can be reproduced here:
https://3v4l.org/NeONG

Test script:
---------------
<?php

echo 'Executing with all params:' . PHP_EOL;
exec('echo Something', output: $output, result_code: $resultCode);

echo 'Executing without output param:' . PHP_EOL;
exec('echo Something', result_code: $resultCode);

echo 'The End';

Expected result:
----------------
No errors should be displayed and the command should be executed.

Actual result:
--------------
Process exited with code 139.

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AllCommentsChangesGit/SVN commitsRelated reports
 [2021-03-01 14:02 UTC] nikic@php.net
-Assigned To: +Assigned To: nikic
 [2021-03-01 15:30 UTC] nikic@php.net
Automatic comment on behalf of nikita.ppv@gmail.com
Revision: http://git.php.net/?p=php-src.git;a=commit;h=75a4f484f058f50fa1bb70c1eb5388409910203b
Log: Fixed bug #80811
 [2021-03-01 15:30 UTC] nikic@php.net
-Status: Assigned +Status: Closed
 
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