From: Jetchko Jekov <jetchko.jekov@nokia.com>
Date: Thu, 21 May 2015 14:32:24 +0000 (+0200)
Subject: gre: raising the size of the buffer holding nl messages.
X-Git-Tag: v4.1.0~16
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bde5baa5476cd8d7d33afc42170dc984f3717e14;p=thirdparty%2Fiproute2.git

gre: raising the size of the buffer holding nl messages.

Now it matches the size for the answer defined in rtnl_talk()
and prevents stack corruption with answer > 1024 bytes.
---

diff --git a/ip/link_gre.c b/ip/link_gre.c
index 1d7838768..193726109 100644
--- a/ip/link_gre.c
+++ b/ip/link_gre.c
@@ -53,7 +53,7 @@ static int gre_parse_opt(struct link_util *lu, int argc, char **argv,
 	struct {
 		struct nlmsghdr n;
 		struct ifinfomsg i;
-		char buf[1024];
+		char buf[16384];
 	} req;
 	struct ifinfomsg *ifi = (struct ifinfomsg *)(n + 1);
 	struct rtattr *tb[IFLA_MAX + 1];