Bug #75065 [NEW]: Segfaults with soap.so

From: willem at mollie dot nl Operating system: Ubuntu 16.04 PHP version: 7.1.8 Package: SOAP related Bug Type: Bug Bug description:Segfaults with soap.so Description: ------------ We are experiencing frequent segfaults using SOAP. Unfortunately, we have been unable to track it down to any specific SOAP snippets - we are guessing that it happens during cleanup at the end of the request. We didn't find any corresponding HTTP 502 status responses in our logs. We use SOAP memory and file cache. At the moment we are running on PHP 7.1.7. Since no mentions of any SOAP segfaults were in the changelog for 7.1.8 we haven't updated yet. This is the only thing I was able to retrieve from our production environment, [Fri Aug 11 14:11:25.475651 2017] [core:notice] [pid 3114] AH00052: child pid 5786 exit signal Segmentation fault (11) *** Error in `/usr/sbin/apache2': free(): invalid pointer: 0x00007f0470a835e0 *** ======= Backtrace: ========= /lib/x86_64-linux-gnu/libc.so.6(+0x777e5)[0x7f0494f827e5] /lib/x86_64-linux-gnu/libc.so.6(+0x8037a)[0x7f0494f8b37a] /lib/x86_64-linux-gnu/libc.so.6(cfree+0x4c)[0x7f0494f8f53c] /usr/lib/apache2/modules/libphp7.1.so(zend_hash_destroy+0x12e)[0x7f0491e49a5e] /usr/lib/php/20160303/soap.so(delete_type_persistent+0x121)[0x7f047eccda71] /usr/lib/apache2/modules/libphp7.1.so(zend_hash_destroy+0xa5)[0x7f0491e499d5] [...] Also, we have lots of messages like this, but it probably doesn't help much: [Fri Aug 11 14:31:28.189252 2017] [core:notice] [pid 1129] AH00052: child pid 7841 exit signal Segmentation fault (11) [Fri Aug 11 14:56:21.320665 2017] [core:notice] [pid 1129] AH00052: child pid 14230 exit signal Segmentation fault (11) [Fri Aug 11 15:00:04.628161 2017] [core:notice] [pid 1129] AH00052: child pid 15305 exit signal Segmentation fault (11) [Fri Aug 11 15:03:22.905461 2017] [core:notice] [pid 1129] AH00052: child pid 15827 exit signal Segmentation fault (11) [Fri Aug 11 15:05:01.045575 2017] [core:notice] [pid 1129] AH00052: child pid 17230 exit signal Segmentation fault (11) [Fri Aug 11 15:05:34.091106 2017] [core:notice] [pid 1129] AH00052: child pid 16727 exit signal Segmentation fault (11) [Fri Aug 11 15:07:53.282893 2017] [core:notice] [pid 1129] AH00052: child pid 17203 exit signal Segmentation fault (11) [Fri Aug 11 15:09:03.388137 2017] [core:notice] [pid 1129] AH00052: child pid 18321 exit signal Segmentation fault (11) [Fri Aug 11 15:10:54.547715 2017] [core:notice] [pid 1129] AH00052: child pid 18405 exit signal Segmentation fault (11) [Fri Aug 11 15:16:45.052236 2017] [core:notice] [pid 1129] AH00052: child pid 19936 exit signal Segmentation fault (11) zend_mm_heap corrupted [Fri Aug 11 15:20:46.404124 2017] [core:notice] [pid 1129] AH00052: child pid 21378 exit signal Segmentation fault (11) [Fri Aug 11 15:20:52.415301 2017] [core:notice] [pid 1129] AH00052: child pid 21346 exit signal Segmentation fault (11) [Fri Aug 11 15:21:34.473730 2017] [core:notice] [pid 1129] AH00052: child pid 21061 exit signal Segmentation fault (11) zend_mm_heap corrupted zend_mm_heap corrupted zend_mm_heap corrupted zend_mm_heap corrupted zend_mm_heap corrupted -- Edit bug report at https://bugs.php.net/bug.php?id=75065&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=75065&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=75065&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=75065&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=75065&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=75065&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=75065&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=75065&r=needscript Try newer version: https://bugs.php.net/fix.php?id=75065&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=75065&r=support Expected behavior: https://bugs.php.net/fix.php?id=75065&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=75065&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=75065&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=75065&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=75065&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=75065&r=dst IIS Stability: https://bugs.php.net/fix.php?id=75065&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=75065&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=75065&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=75065&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=75065&r=mysqlcfg