diff options
| -rw-r--r-- | channels/chan_sip.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/channels/chan_sip.c b/channels/chan_sip.c index 60ff451c1..cc4fa88bd 100644 --- a/channels/chan_sip.c +++ b/channels/chan_sip.c @@ -3965,6 +3965,13 @@ static int retrans_pkt(const void *data) } /* For non-invites, a maximum of 4 secs */ + if (INT_MAX / pkt->timer_a < pkt->timer_t1) { + /* + * Uh Oh, we will have an integer overflow. + * Recalculate previous timeout time instead. + */ + pkt->timer_a = pkt->timer_a / 2; + } siptimer_a = pkt->timer_t1 * pkt->timer_a; /* Double each time */ if (pkt->method != SIP_INVITE && siptimer_a > 4000) { siptimer_a = 4000; |