Mark Michelson 8a7dd2f408 Fix a crash that occurred when a BYE was received on a replaced dialog. ...

Reference counting for the channel and its tech_pvt got messed up at
some point between 1.8 and 11. The result was that if a BYE for a dialog
that had been replaced (via an INVITE with Replaces) was received, Asterisk
would crash due to trying to access data on a channel that was no longer there.

The fix I introduced is to remove code that both unrefs the sip_pvt and sets
the channel's tech_pvt to NULL when an INVITE with Replaces is handled. This
way when a BYE is received, the tech_pvt will be non-NULL and so the BYE can
be processed and not cause a crash.

(closes issue ASTERISK-20929)
reported by Kristopher Lalletti
patches:
	ASTERISK-20929.patch uploaded by Mark Michelson (License #5049)
........

Merged revisions 381566 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@381568 65c4cc65-6c06-0410-ace0-fbb531ad65f3

2013-02-15 18:51:40 +00:00

..

h323

Asterisk media architecture conversion - no more format bitfields

2011-02-03 16:22:10 +00:00

iax2

chan_iax2: Fix compile error if MALLOC_DEBUG enabled.

2013-02-01 19:35:26 +00:00

misdn

chan_misdn: Fix sending RELEASE_COMPLETE in response to SETUP.

2012-11-30 21:38:01 +00:00

sip

Fix some more REF_DEBUG-related build errors

2013-02-12 20:18:21 +00:00

chan_agent.c

chan_agent: Prevent multiple channels from logging in as the same agent.

2013-01-29 18:02:07 +00:00

chan_alsa.c

Doxygen Updates - Title update

2012-10-14 21:47:40 +00:00

chan_bridge.c

confbridge: Minor fixes playing user counts to the conference.

2013-01-22 00:36:52 +00:00

chan_console.c

Doxygen Updates - Title update

2012-10-14 21:47:40 +00:00

chan_dahdi.c

chan_dahdi: Fix "dahdi show channels group" for groups greater than 31.

2013-01-30 21:59:07 +00:00

chan_gtalk.c

Doxygen Updates - Title update

2012-10-14 21:47:40 +00:00

chan_h323.c

Doxygen Updates - Title update

2012-10-14 21:47:40 +00:00

chan_iax2.c

Use a shuffling algorithm to find unused IAX2 call numbers.

2013-02-14 17:06:02 +00:00

chan_jingle.c

Doxygen Updates - Title update

2012-10-14 21:47:40 +00:00

chan_local.c

Prevent exhaustion of system resources through exploitation of event cache

2013-01-02 18:11:59 +00:00

chan_mgcp.c

Make evaluation of channel variables consistently case-sensitive.

2012-10-29 21:27:09 +00:00

chan_misdn.c

chan_misdn: Fix compile error.

2013-01-16 17:49:52 +00:00

chan_motif.c

Add CLI configuration documentation

2013-02-15 13:38:12 +00:00

chan_multicast_rtp.c

Opaquification for ast_format structs in struct ast_channel

2012-02-24 00:32:20 +00:00

chan_nbs.c

Opaquification for ast_format structs in struct ast_channel

2012-02-24 00:32:20 +00:00

chan_oss.c

Doxygen Updates - Title update

2012-10-14 21:47:40 +00:00

chan_phone.c

Doxygen Updates - Title update

2012-10-14 21:47:40 +00:00

chan_phone.h

rename DialTone.h to chan_phone.h because chan_phone.c is the only file using it

2008-05-28 20:00:21 +00:00

chan_sip.c

Fix a crash that occurred when a BYE was received on a replaced dialog.

2013-02-15 18:51:40 +00:00

chan_skinny.c

Remove extraneous stuff from r381470.

2013-02-14 19:58:33 +00:00

chan_unistim.c

Add firmware information to CLI devices listing

2012-12-10 07:03:48 +00:00

chan_vpb.cc

Doxygen Updates - Title update

2012-10-14 21:47:40 +00:00

console_board.c

Multiple revisions 369001-369002

2012-06-15 16:20:16 +00:00

console_gui.c

Multiple revisions 369001-369002

2012-06-15 16:20:16 +00:00

console_video.c

Multiple revisions 369001-369002

2012-06-15 16:20:16 +00:00

console_video.h

implement the 'freeze' function for incoming frames;

2008-06-30 15:45:15 +00:00

Makefile

Move the ancillary iax2 source files into a separate sub-directory.

2013-01-29 22:58:33 +00:00

misdn_config.c

Add named callgroups/pickupgroups

2012-08-07 12:46:36 +00:00

sig_analog.c

Multiple revisions 375993-375994

2012-11-07 19:15:26 +00:00

sig_analog.h

Convert sig_analog to use a global callback table.

2012-08-08 20:32:53 +00:00

sig_pri.c

Multiple revisions 375993-375994

2012-11-07 19:15:26 +00:00

sig_pri.h

Clean up doxygen warnings

2012-08-30 14:23:28 +00:00

sig_ss7.c

chan_dahdi/SS7: Made reject incoming call for an in-alarm or blocked channel.

2012-11-08 21:12:35 +00:00

sig_ss7.h

Convert sig_ss7 to use a global callback table.

2012-08-08 00:15:54 +00:00

vcodecs.c

Multiple revisions 369001-369002

2012-06-15 16:20:16 +00:00

vgrabbers.c

Multiple revisions 369001-369002

2012-06-15 16:20:16 +00:00