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 <wr0112...@gmail.com> --- net/core/drop_monitor.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c index f465bad..ccaaf3e 100644 --- a/net/core/drop_monitor.c +++ b/net/core/drop_monitor.c @@ -102,7 +102,6 @@ static struct sk_buff *reset_per_cpu_data(struct per_cpu_dm_data *data) } msg = nla_data(nla); memset(msg, 0, al); - genlmsg_end(skb, msg_header); goto out; err: @@ -112,6 +111,12 @@ static struct sk_buff *reset_per_cpu_data(struct per_cpu_dm_data *data) 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; } -- 2.9.3