Fixed possible threading issue.

1 files changed, 2 insertions, 0 deletions

diff --git a/toxcore/net_crypto.c b/toxcore/net_crypto.c
index 7ad3b413..a813395a 100644
--- a/toxcore/net_crypto.c
+++ b/toxcore/net_crypto.c
@@ -2343,7 +2343,9 @@ static int udp_handle_packet(void *object, IP_Port source, const uint8_t *packet
     if (conn == 0)
         return -1;
 
+    pthread_mutex_lock(&conn->mutex);
     conn->direct_lastrecv_time = current_time_monotonic();
+    pthread_mutex_unlock(&conn->mutex);
     return 0;
 }