Fix possible uninitialised values in struct ifreq

G0Y · Sep 22, 2019 · b889795 · b889795
1 parent 0538c52
commit b889795
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/tuntap_linux.c b/tuntap_linux.c
@@ -54,6 +54,8 @@ static int setup_ifname(int fd, const char *ifname, const char *ipaddr,
           const char *netmask, const char *mac, int mtu) {
   struct ifreq ifr;
 
+  memset(&ifr, 0, sizeof(ifr));
+
   strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
   ifr.ifr_name[IFNAMSIZ-1] = '\0';