Bug #69402 [NEW]: Reading empty SSL stream hangs until timeout

From: carl dot vuorinen at w3 dot fi Operating system: Ubuntu 14.04 PHP version: 5.6.7 Package: Streams related Bug Type: Bug Bug description:Reading empty SSL stream hangs until timeout Description: ------------ Connecting to an SSL socket stream and trying to read from the stream when it's empty, results in the script hanging with 100% CPU usage until timeout (either socket timeout or PHP max execution time, which ever comes first). Only environment where I (and others) have been able to reproduce this is PHP 5.6.7 on Ubuntu 14.04. I have tested on few CentOS servers with PHP 5.4, 5.5 and 5.6 and they all work fine. Also on a Debian server with PHP 5.4 the same script works fine. More info here: https://github.com/zendframework/ZendService_Apple_Apns/issues/19 Test script: --------------- Unfortunately I haven't been able to reproduce this without a valid SSL stream so the example code requires a connection to Apple APNS sandbox server and a valid local certificate provided by Apple (which I obviously cannot share). If anyone knows how this kind of connection could be established in a more generic and easily reproducible way, that would be great. https://gist.github.com/cvuorinen/1640b1a8ff2a7a19dd8e Expected result: ---------------- string(0) "" Actual result: -------------- Fatal error: Maximum execution time of 10 seconds exceeded in /tmp/stream_test.php on line 27 Call Stack: 0.0001 233600 1. {main}() /tmp/stream_test.php:0 0.4907 236528 2. fread() /tmp/stream_test.php:27 -- Edit bug report at https://bugs.php.net/bug.php?id=69402&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=69402&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=69402&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=69402&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=69402&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=69402&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=69402&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=69402&r=needscript Try newer version: https://bugs.php.net/fix.php?id=69402&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=69402&r=support Expected behavior: https://bugs.php.net/fix.php?id=69402&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=69402&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=69402&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=69402&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=69402&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=69402&r=dst IIS Stability: https://bugs.php.net/fix.php?id=69402&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=69402&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=69402&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=69402&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=69402&r=mysqlcfg