Validate bridge interface before delete it

1 files changed, 2 insertions, 0 deletions

diff --git a/usr/local/www/interfaces_bridge.php b/usr/local/www/interfaces_bridge.php
index f9faba3..44a21d5 100644
--- a/usr/local/www/interfaces_bridge.php
+++ b/usr/local/www/interfaces_bridge.php
@@ -62,6 +62,8 @@ if ($_GET['act'] == "del") {
 	/* check if still in use */
 	if (bridge_inuse($_GET['id'])) {
 		$input_errors[] = gettext("This bridge cannot be deleted because it is assigned as an interface.");
+	} elseif (!does_interface_exist($a_bridges[$_GET['id']]['bridgeif'])) {
+		$input_errors[] = gettext("Invalid bridge interface.");
 	} else {
 		mwexec("/sbin/ifconfig " . $a_bridges[$_GET['id']]['bridgeif'] . " destroy");
 		unset($a_bridges[$_GET['id']]);