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authorrussell <russell@f38db490-d61c-443f-a65b-d21fe96a405b>2008-02-15 23:31:39 +0000
committerrussell <russell@f38db490-d61c-443f-a65b-d21fe96a405b>2008-02-15 23:31:39 +0000
commit862eadc30bbfc557907efc5d17f67cdd7506b6a7 (patch)
tree0b4e9f73a36a401c61db752d8ad8a12a1fa91106 /channels
parent9a47ce9b2ce37891d5b6c55b155700b47c2ecfdb (diff)
Fix a crash in chan_iax2 due to a race condition
(closes issue #11780) Reported by: guillecabeza Patches: bug_iax2_jb_1.4.patch uploaded by guillecabeza (license 380) bug_iax2_jb_trunk.patch uploaded by guillecabeza (license 380) git-svn-id: http://svn.digium.com/svn/asterisk/branches/1.4@103741 f38db490-d61c-443f-a65b-d21fe96a405b
Diffstat (limited to 'channels')
-rw-r--r--channels/chan_iax2.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/channels/chan_iax2.c b/channels/chan_iax2.c
index 90ad71994..0f17c80b1 100644
--- a/channels/chan_iax2.c
+++ b/channels/chan_iax2.c
@@ -2515,7 +2515,9 @@ static int schedule_delivery(struct iax_frame *fr, int updatehistory, int fromtr
int type, len;
int ret;
int needfree = 0;
-
+ struct ast_channel *owner = NULL;
+ struct ast_channel *bridge = NULL;
+
/* Attempt to recover wrapped timestamps */
unwrap_timestamp(fr);
@@ -2547,11 +2549,12 @@ static int schedule_delivery(struct iax_frame *fr, int updatehistory, int fromtr
return -1;
}
+ if ((owner = iaxs[fr->callno]->owner))
+ bridge = ast_bridged_channel(owner);
+
/* if the user hasn't requested we force the use of the jitterbuffer, and we're bridged to
* a channel that can accept jitter, then flush and suspend the jb, and send this frame straight through */
- if( (!ast_test_flag(iaxs[fr->callno], IAX_FORCEJITTERBUF)) &&
- iaxs[fr->callno]->owner && ast_bridged_channel(iaxs[fr->callno]->owner) &&
- (ast_bridged_channel(iaxs[fr->callno]->owner)->tech->properties & AST_CHAN_TP_WANTSJITTER)) {
+ if ( (!ast_test_flag(iaxs[fr->callno], IAX_FORCEJITTERBUF)) && owner && bridge && (bridge->tech->properties & AST_CHAN_TP_WANTSJITTER) ) {
jb_frame frame;
/* deliver any frames in the jb */