From 197b26f25309f947b97a83b8fdfc414b767798f8 Mon Sep 17 00:00:00 2001 From: Thomas Markwalder Date: Fri, 9 Feb 2018 14:46:08 -0500 Subject: [master] Corrected refcnt loss in option parsing Merges in 47140. --- common/options.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'common/options.c') diff --git a/common/options.c b/common/options.c index 5044d4a1..6f23bc15 100644 --- a/common/options.c +++ b/common/options.c @@ -3,7 +3,7 @@ DHCP options parsing and reassembly. */ /* - * Copyright (c) 2004-2017 by Internet Systems Consortium, Inc. ("ISC") + * Copyright (c) 2004-2018 by Internet Systems Consortium, Inc. ("ISC") * Copyright (c) 1995-2003 by Internet Software Consortium * * This Source Code Form is subject to the terms of the Mozilla Public @@ -177,6 +177,8 @@ int parse_option_buffer (options, buffer, length, universe) /* If the length is outrageous, the options are bad. */ if (offset + len > length) { + /* Avoid reference count overflow */ + option_dereference(&option, MDL); reason = "option length exceeds option buffer length"; bogus: log_error("parse_option_buffer: malformed option " -- cgit v1.2.1