diff --git a/networking/udhcp/common.c b/networking/udhcp/common.c
index 589bcd6..1aaf525 100644
--- a/networking/udhcp/common.c
+++ b/networking/udhcp/common.c
@@ -268,7 +268,8 @@
 		}
 
 		if (optionptr[OPT_CODE] == DHCP_OPTION_OVERLOAD) {
-			overload |= optionptr[OPT_DATA];
+			if (len >= 3)
+				overload |= optionptr[OPT_DATA];
 			/* fall through */
 		}
 		optionptr += len;