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: https://origsvn.digium.com/svn/asterisk/branches/1.4@103741 65c4cc65-6c06-0410-ace0-fbb531ad65f3
1.4
Russell Bryant 18 years ago
parent 468e53a6de
commit 6bf909cd2e

@ -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 */

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