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Date: Fri, 8 Aug 2014 16:44:32 +0200
From: Jiri Benc <jbenc@...hat.com>
To: netdev@...r.kernel.org
Cc: Rony Efraim <ronye@...lanox.com>
Subject: [PATCH net] 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 <ypei@...hat.com>
Signed-off-by: Jiri Benc <jbenc@...hat.com>
---
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;
--
1.8.3.1
--
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