Bug #71144 [NEW]: Sementation fault when using cURL with ZTS
| From: | maroszek at gmx dot net | Date: | Wed, 16 Dec 2015 22:25:42 +0000 |
| Subject: | Bug #71144 [NEW]: Sementation fault when using cURL with ZTS | ||
| Groups: | php.bugs | ||
| Request: | Send a blank email to php-bugs+get-197942@lists.php.net to get a copy of this message | ||
From: maroszek at gmx dot net
Operating system: Any
PHP version: 7.0.0
Package: cURL related
Bug Type: Bug
Bug description:Sementation fault when using cURL with ZTS
Description:
------------
As stated here:
http://curl.haxx.se/libcurl/c/CURLOPT_DNS_USE_GLOBAL_CACHE.html
and here: http://php.net/manual/en/function.curl-setopt.php
CURLOPT_DNS_USE_GLOBAL_CACHE is not thread safe.
This option should not get enabled by default when ZTS is enabled.
And we should not allow the user to set this option, when ZTS is
enabled.
I attached a patch which fixes both things.
Test script:
---------------
Just make a lot of random requests in a lot of threads to different
domains.
After a while the crash will happen.
Expected result:
----------------
No crash
Actual result:
--------------
Crash.
--
Edit bug report at https://bugs.php.net/bug.php?id=71144&edit=1
--
Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=71144&r=trysnapshot54
Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=71144&r=trysnapshot55
Try a snapshot (trunk): https://bugs.php.net/fix.php?id=71144&r=trysnapshottrunk
Fixed in SVN: https://bugs.php.net/fix.php?id=71144&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=71144&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=71144&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=71144&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=71144&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=71144&r=support
Expected behavior: https://bugs.php.net/fix.php?id=71144&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=71144&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=71144&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=71144&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=71144&r=php4
Daylight Savings: https://bugs.php.net/fix.php?id=71144&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=71144&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=71144&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=71144&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=71144&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=71144&r=mysqlcfg