4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Reiter Wolfgang <wr0112358@xxxxxxxxx>
[ Upstream commit 3b48ab2248e61408910e792fe84d6ec466084c1a ]
Final nlmsg_len field update must reflect inserted net_dm_drop_point
data.
This patch depends on previous patch:
"drop_monitor: add missing call to genlmsg_end"
Signed-off-by: Reiter Wolfgang <wr0112358@xxxxxxxxx>
Acked-by: Neil Horman <nhorman@xxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/core/drop_monitor.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -107,7 +107,6 @@ static struct sk_buff *reset_per_cpu_dat
}
msg = nla_data(nla);
memset(msg, 0, al);
- genlmsg_end(skb, msg_header);
goto out;
err:
@@ -117,6 +116,13 @@ out:
swap(data->skb, skb);
spin_unlock_irqrestore(&data->lock, flags);
+ if (skb) {
+ struct nlmsghdr *nlh = (struct nlmsghdr *)skb->data;
+ struct genlmsghdr *gnlh = (struct genlmsghdr *)nlmsg_data(nlh);
+
+ genlmsg_end(skb, genlmsg_data(gnlh));
+ }
+
return skb;
}
--
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