From 945a36761fd7877660f630bbdeb4ff9ff80d1935 Mon Sep 17 00:00:00 2001 From: Jiri Benc Date: Fri, 8 Aug 2014 16:44:32 +0200 Subject: [PATCH] rtnetlink: fix VF info size Commit 1d8faf48c74b8 ("net/core: Add VF link state control") added new attribute to IFLA_VF_INFO group in rtnl_fill_ifinfo but did not adjust size of the allocated memory in if_nlmsg_size/rtnl_vfinfo_size. As the result, we may trigger warnings in rtnl_getlink and similar functions when many VF links are enabled, as the information does not fit into the allocated skb. Fixes: 1d8faf48c74b8 ("net/core: Add VF link state control") Reported-by: Yulong Pei Signed-off-by: Jiri Benc Signed-off-by: David S. Miller --- net/core/rtnetlink.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 8d39071f32d7..f0493e3b7471 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -804,7 +804,8 @@ static inline int rtnl_vfinfo_size(const struct net_device *dev, (nla_total_size(sizeof(struct ifla_vf_mac)) + nla_total_size(sizeof(struct ifla_vf_vlan)) + nla_total_size(sizeof(struct ifla_vf_spoofchk)) + - nla_total_size(sizeof(struct ifla_vf_rate))); + nla_total_size(sizeof(struct ifla_vf_rate)) + + nla_total_size(sizeof(struct ifla_vf_link_state))); return size; } else return 0;