From 221af3896a9915da5ca716c6e3901f07e5bca815 Mon Sep 17 00:00:00 2001
From: jow <jow@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Mon, 15 Jul 2013 13:42:58 +0000
Subject: base-files: reject invalid uci keys in network_get_device() and
 related procedures (#13886)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37345 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 package/base-files/files/lib/functions/network.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/package/base-files/files/lib/functions/network.sh b/package/base-files/files/lib/functions/network.sh
index 5ffe2ca0b9..ead69aa626 100644
--- a/package/base-files/files/lib/functions/network.sh
+++ b/package/base-files/files/lib/functions/network.sh
@@ -25,6 +25,10 @@ __network_parse_ifstatus()
 	local __list
 	local __old_ns
 
+	case "$__iface" in
+		*[^a-zA-Z0-9_]*) return 1 ;;
+	esac
+
 	__network_export __tmp "${__key}__parsed" && return 0
 	__tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
 	[ -n "$__tmp" ] || return 1
-- 
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