apps/app_queue: Prevent possible crash when evaluating queue penalty rules
authorMatthew Jordan <mjordan@digium.com>
Thu, 9 Apr 2015 02:05:26 +0000 (02:05 +0000)
committerMatthew Jordan <mjordan@digium.com>
Thu, 9 Apr 2015 02:05:26 +0000 (02:05 +0000)
commit2201e2734077c07648029f165d1a6a89f99e07c0
tree359de0c1bd1fa362946fbe91ae0c2fc33ed021c1
parenta759714101741365edc6337ed7540422e41c0701
apps/app_queue: Prevent possible crash when evaluating queue penalty rules

Although it only occurred once, a crash occurred when a queue attempted to
evaluate a queue penalty rule that appeared to have already been destroyed.
In many locations in app_queue, a test is done to see if qe->pr is NULL;
however, when we dispose of a queue's penalty rules, we don't set the pointer
to NULL after free'ing it. This patch does that to prevent any dangling
pointers from lingering on the queue object.

Review: https://reviewboard.asterisk.org/r/4522

ASTERISK-23319 #close
Reported by: Vadim
patches:
  rb4552.patch submitted by Stefan Engström (License 6691)
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Merged revisions 434448 from http://svn.asterisk.org/svn/asterisk/branches/11
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Merged revisions 434449 from http://svn.asterisk.org/svn/asterisk/branches/13

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@434450 65c4cc65-6c06-0410-ace0-fbb531ad65f3
apps/app_queue.c