timers: queue up killing ephemerals only if not already

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/timers.c b/src/timers.c
index cd37580..c1ef7f0 100644
--- a/src/timers.c
+++ b/src/timers.c
@@ -36,7 +36,7 @@ static void expired_retransmit_handshake(unsigned long ptr)
 		skb_queue_purge(&peer->tx_packet_queue);
 		/* We set a timer for destroying any residue that might be left
 		 * of a partial exchange. */
-		if (likely(peer->timers_enabled))
+		if (likely(peer->timers_enabled) && !timer_pending(&peer->timer_kill_ephemerals))
 			mod_timer(&peer->timer_kill_ephemerals, jiffies + (REJECT_AFTER_TIME * 3));
 	} else {
 		++peer->timer_handshake_attempts;