base-files: reject invalid uci keys in network_get_device() and related procedures...

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@37345 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/base-files/files/lib/functions/network.sh b/package/base-files/files/lib/functions/network.sh
index 5ffe2ca..ead69aa 100644 (file)
--- 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