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ftmod_libpri: Fix NULL pointer deref in on_hangup()

This commit is contained in:
Harald Welte 2019-12-29 00:26:14 +01:00
parent 83f6bf5276
commit a341d58fbd
1 changed files with 2 additions and 1 deletions
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3
libs/freetdm/src/ftmod/ftmod_libpri/ftmod_libpri.c
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@ -1405,12 +1405,13 @@ static int on_hangup(lpwrap_pri_t *spri, lpwrap_pri_event_t event_type, pri_even
{
ftdm_span_t *span = spri->span;
ftdm_channel_t *chan = ftdm_span_get_channel(span, pevent->hangup.channel);
ftdm_libpri_b_chan_t *chan_priv = chan->call_data;
ftdm_libpri_b_chan_t *chan_priv;
if (!chan) {
ftdm_log(FTDM_LOG_CRIT, "-- Hangup on channel %d:%d but it's not in use?\n", ftdm_span_get_id(spri->span), pevent->hangup.channel);
return 0;
}
chan_priv = chan->call_data;
ftdm_channel_lock(chan);