<p>Joshua Colp has uploaded this change for <strong>review</strong>.</p><p><a href="https://gerrit.asterisk.org/c/asterisk/+/14450">View Change</a></p><pre style="font-family: monospace,monospace; white-space: pre-wrap;">res_rtp_asterisk: Re-order RTP destruction.<br><br>The destructor for RTP deallocated transport resources<br>before terminating the ICE support. This could result<br>in a crash as the thread handling ICE would access already<br>freed parts of the RTP data.<br><br>This change re-orders the destruction so that ICE is<br>stopped before destroying things.<br><br>ASTERISK-28885<br><br>Change-Id: Ie71add549f12b6cdea7e9dbf976d1bd1d2fc0bdc<br>---<br>M res/res_rtp_asterisk.c<br>1 file changed, 33 insertions(+), 33 deletions(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">git pull ssh://gerrit.asterisk.org:29418/asterisk refs/changes/50/14450/1</pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;"><span>diff --git a/res/res_rtp_asterisk.c b/res/res_rtp_asterisk.c</span><br><span>index 8e1fb37..167a766 100644</span><br><span>--- a/res/res_rtp_asterisk.c</span><br><span>+++ b/res/res_rtp_asterisk.c</span><br><span>@@ -3429,39 +3429,6 @@</span><br><span> ast_rtp_dtls_stop(instance);</span><br><span> #endif</span><br><span> </span><br><span style="color: hsl(0, 100%, 40%);">- /* Destroy the smoother that was smoothing out audio if present */</span><br><span style="color: hsl(0, 100%, 40%);">- if (rtp->smoother) {</span><br><span style="color: hsl(0, 100%, 40%);">- ast_smoother_free(rtp->smoother);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Close our own socket so we no longer get packets */</span><br><span style="color: hsl(0, 100%, 40%);">- if (rtp->s > -1) {</span><br><span style="color: hsl(0, 100%, 40%);">- close(rtp->s);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Destroy RTCP if it was being used */</span><br><span style="color: hsl(0, 100%, 40%);">- if (rtp->rtcp) {</span><br><span style="color: hsl(0, 100%, 40%);">- /*</span><br><span style="color: hsl(0, 100%, 40%);">- * It is not possible for there to be an active RTCP scheduler</span><br><span style="color: hsl(0, 100%, 40%);">- * entry at this point since it holds a reference to the</span><br><span style="color: hsl(0, 100%, 40%);">- * RTP instance while it's active.</span><br><span style="color: hsl(0, 100%, 40%);">- */</span><br><span style="color: hsl(0, 100%, 40%);">- if (rtp->rtcp->s > -1 && rtp->s != rtp->rtcp->s) {</span><br><span style="color: hsl(0, 100%, 40%);">- close(rtp->rtcp->s);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">- ast_free(rtp->rtcp->local_addr_str);</span><br><span style="color: hsl(0, 100%, 40%);">- ast_free(rtp->rtcp);</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span style="color: hsl(0, 100%, 40%);">- /* Destroy RED if it was being used */</span><br><span style="color: hsl(0, 100%, 40%);">- if (rtp->red) {</span><br><span style="color: hsl(0, 100%, 40%);">- ao2_unlock(instance);</span><br><span style="color: hsl(0, 100%, 40%);">- AST_SCHED_DEL(rtp->sched, rtp->red->schedid);</span><br><span style="color: hsl(0, 100%, 40%);">- ao2_lock(instance);</span><br><span style="color: hsl(0, 100%, 40%);">- ast_free(rtp->red);</span><br><span style="color: hsl(0, 100%, 40%);">- rtp->red = NULL;</span><br><span style="color: hsl(0, 100%, 40%);">- }</span><br><span style="color: hsl(0, 100%, 40%);">-</span><br><span> #ifdef HAVE_PJPROJECT</span><br><span> pj_thread_register_check();</span><br><span> </span><br><span>@@ -3519,6 +3486,39 @@</span><br><span> }</span><br><span> #endif</span><br><span> </span><br><span style="color: hsl(120, 100%, 40%);">+ /* Destroy the smoother that was smoothing out audio if present */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rtp->smoother) {</span><br><span style="color: hsl(120, 100%, 40%);">+ ast_smoother_free(rtp->smoother);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Close our own socket so we no longer get packets */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rtp->s > -1) {</span><br><span style="color: hsl(120, 100%, 40%);">+ close(rtp->s);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Destroy RTCP if it was being used */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rtp->rtcp) {</span><br><span style="color: hsl(120, 100%, 40%);">+ /*</span><br><span style="color: hsl(120, 100%, 40%);">+ * It is not possible for there to be an active RTCP scheduler</span><br><span style="color: hsl(120, 100%, 40%);">+ * entry at this point since it holds a reference to the</span><br><span style="color: hsl(120, 100%, 40%);">+ * RTP instance while it's active.</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rtp->rtcp->s > -1 && rtp->s != rtp->rtcp->s) {</span><br><span style="color: hsl(120, 100%, 40%);">+ close(rtp->rtcp->s);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+ ast_free(rtp->rtcp->local_addr_str);</span><br><span style="color: hsl(120, 100%, 40%);">+ ast_free(rtp->rtcp);</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Destroy RED if it was being used */</span><br><span style="color: hsl(120, 100%, 40%);">+ if (rtp->red) {</span><br><span style="color: hsl(120, 100%, 40%);">+ ao2_unlock(instance);</span><br><span style="color: hsl(120, 100%, 40%);">+ AST_SCHED_DEL(rtp->sched, rtp->red->schedid);</span><br><span style="color: hsl(120, 100%, 40%);">+ ao2_lock(instance);</span><br><span style="color: hsl(120, 100%, 40%);">+ ast_free(rtp->red);</span><br><span style="color: hsl(120, 100%, 40%);">+ rtp->red = NULL;</span><br><span style="color: hsl(120, 100%, 40%);">+ }</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span> ao2_cleanup(rtp->lasttxformat);</span><br><span> ao2_cleanup(rtp->lastrxformat);</span><br><span> ao2_cleanup(rtp->f.subclass.format);</span><br><span></span><br></pre><p>To view, visit <a href="https://gerrit.asterisk.org/c/asterisk/+/14450">change 14450</a>. 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<div style="display:none"> Gerrit-Project: asterisk </div>
<div style="display:none"> Gerrit-Branch: 13 </div>
<div style="display:none"> Gerrit-Change-Id: Ie71add549f12b6cdea7e9dbf976d1bd1d2fc0bdc </div>
<div style="display:none"> Gerrit-Change-Number: 14450 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: Joshua Colp <jcolp@sangoma.com> </div>
<div style="display:none"> Gerrit-MessageType: newchange </div>