svn commit: r365010 - stable/12/sbin/dhclient

[Ed Maste]

Author: emaste
Date: Mon Aug 31 21:28:09 2020
New Revision: 365010
URL: https://svnweb.freebsd.org/changeset/base/365010

Log:
  MFC r364994: dhclient: improve error handling parsing option 119
  
  Reported by:	Shlomi Oberman, JSOF
  Submitted by:	delphij
  Reviewed by:	markj
  Tested by:	markj

Modified:
  stable/12/sbin/dhclient/options.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/sbin/dhclient/options.c
==============================================================================
--- stable/12/sbin/dhclient/options.c	Mon Aug 31 21:04:00 2020	(r365009)
+++ stable/12/sbin/dhclient/options.c	Mon Aug 31 21:28:09 2020	(r365010)
@@ -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;