[093/118] rtnetlink: Call nlmsg_parse() with correct header length

From: Ben Hutchings
Date: Fri May 10 2013 - 10:44:11 EST


3.2.45-rc1 review patch. If anyone has any objections, please let me know.

------------------

From: Michael Riesch <michael.riesch@xxxxxxxxxx>

[ Upstream commit 88c5b5ce5cb57af6ca2a7cf4d5715fa320448ff9 ]

Signed-off-by: Michael Riesch <michael.riesch@xxxxxxxxxx>
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Jiri Benc <jbenc@xxxxxxxxxx>
Cc: "Theodore Ts'o" <tytso@xxxxxxx>
Cc: linux-kernel@xxxxxxxxxxxxxxx
Acked-by: Mark Rustad <mark.d.rustad@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
net/core/rtnetlink.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1064,7 +1064,7 @@ static int rtnl_dump_ifinfo(struct sk_bu
rcu_read_lock();
cb->seq = net->dev_base_seq;

- if (nlmsg_parse(cb->nlh, sizeof(struct rtgenmsg), tb, IFLA_MAX,
+ if (nlmsg_parse(cb->nlh, sizeof(struct ifinfomsg), tb, IFLA_MAX,
ifla_policy) >= 0) {

if (tb[IFLA_EXT_MASK])
@@ -1907,7 +1907,7 @@ static u16 rtnl_calcit(struct sk_buff *s
u32 ext_filter_mask = 0;
u16 min_ifinfo_dump_size = 0;

- if (nlmsg_parse(nlh, sizeof(struct rtgenmsg), tb, IFLA_MAX,
+ if (nlmsg_parse(nlh, sizeof(struct ifinfomsg), tb, IFLA_MAX,
ifla_policy) >= 0) {
if (tb[IFLA_EXT_MASK])
ext_filter_mask = nla_get_u32(tb[IFLA_EXT_MASK]);

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