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From: Hangbin Liu <liuhangbin@gmail.com>
To: netdev@vger.kernel.org
Cc: Hangbin Liu <liuhangbin@gmail.com>
Subject: [PATCH v2 net] vti: check nla_put_* return value
Date: Mon,  8 May 2017 17:57:13 +0800	[thread overview]
Message-ID: <1494237433-18964-1-git-send-email-liuhangbin@gmail.com> (raw)
In-Reply-To: <1494225380-12322-1-git-send-email-liuhangbin@gmail.com>

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
---
 net/ipv4/ip_vti.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index 4097741..4ec9aff 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -546,12 +546,13 @@ static int vti_fill_info(struct sk_buff *skb, const struct net_device *dev)
 	struct ip_tunnel *t = netdev_priv(dev);
 	struct ip_tunnel_parm *p = &t->parms;
 
-	nla_put_u32(skb, IFLA_VTI_LINK, p->link);
-	nla_put_be32(skb, IFLA_VTI_IKEY, p->i_key);
-	nla_put_be32(skb, IFLA_VTI_OKEY, p->o_key);
-	nla_put_in_addr(skb, IFLA_VTI_LOCAL, p->iph.saddr);
-	nla_put_in_addr(skb, IFLA_VTI_REMOTE, p->iph.daddr);
-	nla_put_u32(skb, IFLA_VTI_FWMARK, t->fwmark);
+	if (nla_put_u32(skb, IFLA_VTI_LINK, p->link) ||
+	    nla_put_be32(skb, IFLA_VTI_IKEY, p->i_key) ||
+	    nla_put_be32(skb, IFLA_VTI_OKEY, p->o_key) ||
+	    nla_put_in_addr(skb, IFLA_VTI_LOCAL, p->iph.saddr) ||
+	    nla_put_in_addr(skb, IFLA_VTI_REMOTE, p->iph.daddr) ||
+	    nla_put_u32(skb, IFLA_VTI_FWMARK, t->fwmark))
+		return -EMSGSIZE;
 
 	return 0;
 }
-- 
2.5.5

  reply	other threads:[~2017-05-08  9:57 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-08  6:36 [PATCH net] vit: check nla_put_* return value Hangbin Liu
2017-05-08  9:57 ` Hangbin Liu [this message]
2017-05-08 19:14   ` [PATCH v2 net] vti: " David Miller

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