svn commit: r364994 - head/sbin/dhclient

[Ed Maste]

Author: emaste
Date: Mon Aug 31 15:55:29 2020
New Revision: 364994
URL: https://svnweb.freebsd.org/changeset/base/364994

Log:
  dhclient: improve error handling parsing option 119
  
  Reported by:	Shlomi Oberman, JSOF
  Submitted by:	delphij
  Reviewed by:	markj
  Tested by:	markj

Modified:
  head/sbin/dhclient/options.c

Modified: head/sbin/dhclient/options.c
==============================================================================
--- head/sbin/dhclient/options.c	Mon Aug 31 15:32:45 2020	(r364993)
+++ head/sbin/dhclient/options.c	Mon Aug 31 15:55:29 2020	(r364994)
@@ -298,6 +298,8 @@ find_search_domain_name_len(struct option_data *option
 
 			pointed_len = find_search_domain_name_len(option,
 			    &pointer);
+			if (pointed_len < 0)
+				return (-1);
 			domain_name_len += pointed_len;
 
 			*offset = i + 2;