From: Jetchko Jekov <jetchko.jekov@nokia.com>
To: netdev@vger.kernel.org
Subject: [PATCH] Raising the size of the buffer holding nl messages
Date: Thu, 21 May 2015 17:03:36 +0200 [thread overview]
Message-ID: <555DF3C8.10006@nokia.com> (raw)
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>From 68f0dda45a4f1bca070849f3f04a409de897ee0f Mon Sep 17 00:00:00 2001
From: Jetchko Jekov <jetchko.jekov@nokia.com>
Date: Thu, 21 May 2015 16:32:24 +0200
Subject: [PATCH] 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.
---
ip/link_gre.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/ip/link_gre.c b/ip/link_gre.c
index 1d78387..1937261 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];
--
2.1.0
reply other threads:[~2015-05-21 15:03 UTC|newest]
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