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FlashCrossDomainHandler causes infinite loop under some circumstances

Description

We found that after running for several hours, the openfire server always has a 100% CPU usage.

By using the jvirtualVM to monitor the CPU usage sample graph, we found this
is caused by the read() method (see the code below) of the FlashCrossDomainHandler
class. it can run into a infinite loop under some circumstances.

http://fisheye.igniterealtime.org/browse/~br=trunk/openfire/trunk/src/java/org/jivesoftware/openfire/FlashCrossDomainHandler.java?r=11608#to156

Then we commented the read() method, the validation of the incoming stream and
returned the cross domain policy text straightway in while loop of the startServer()
method , as the result the CPU usage became normal.

Environment

None

Activity

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Florian Schmaus March 3, 2013 at 11:15 PM

The code hasn't changed since the reporting of the issue and the read method could still loop endlessly.

Daryl Herzmann March 3, 2013 at 12:02 PM

bumped ignite forum message to check on validity

Fixed

Details

Assignee

Reporter

Ignite Forum URL

http://community.igniterealtime.org/message/216660#216660
http://community.igniterealtime.org/message/216660#216660

Components

Fix versions

Affects versions

Priority

Created September 16, 2011 at 10:10 AM
Updated October 28, 2020 at 1:26 PM
Resolved March 4, 2013 at 9:55 AM

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