Check if interface really exists on interface_ppps_configure() and interface_configure()

1 files changed, 7 insertions, 1 deletions

diff --git a/etc/inc/interfaces.inc b/etc/inc/interfaces.inc
index ff04fa0..2030b58 100644
--- a/etc/inc/interfaces.inc
+++ b/etc/inc/interfaces.inc
@@ -1351,8 +1351,11 @@ function interface_ppps_configure($interface) {
 
 	$ports = explode(',',$ppp['ports']);
 	if ($type != "modem") {
-		foreach ($ports as $pid => $port)
+		foreach ($ports as $pid => $port) {
 			$ports[$pid] = get_real_interface($port);
+			if (empty($ports[$pid]))
+				return 0;
+		}
 	}
 	$localips = explode(',',$ppp['localip']);
 	$gateways = explode(',',$ppp['gateway']);
@@ -2630,6 +2633,9 @@ function interface_configure($interface = "wan", $reloadall = false, $linkupeven
 	// Need code to handle MLPPP if we ever use $realhwif for MLPPP handling
 	$realhwif = $realhwif_array[0];
 
+	if (!does_interface_exist($realhwif))
+		return 0;
+
 	/* Disable Accepting router advertisements unless specifically requested */
 	log_error("Deny router advertisements for interface {$interface}");
 	mwexec("/sbin/ifconfig " . escapeshellarg($realif) . " inet6 -accept_rtadv");