[NETLINK]: Clear padding in netlink messages
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index d021888..dc26e82 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -898,7 +898,9 @@
memcpy(skb_put(skb, attrlen), data, attrlen); })
#define RTA_PUT_NOHDR(skb, attrlen, data) \
- RTA_APPEND(skb, RTA_ALIGN(attrlen), data)
+({ RTA_APPEND(skb, RTA_ALIGN(attrlen), data); \
+ memset(skb->tail - (RTA_ALIGN(attrlen) - attrlen), 0, \
+ RTA_ALIGN(attrlen) - attrlen); })
#define RTA_PUT_U8(skb, attrtype, value) \
({ u8 _tmp = (value); \
@@ -978,6 +980,7 @@
rta = (struct rtattr*)skb_put(skb, RTA_ALIGN(size));
rta->rta_type = attrtype;
rta->rta_len = size;
+ memset(RTA_DATA(rta) + attrlen, 0, RTA_ALIGN(size) - size);
return rta;
}