[DECNET]: Fix memset overflow on 64bit archs while dumping decnet routing rules

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/net/decnet/dn_fib.c b/net/decnet/dn_fib.c
index 9934b25720e4..99bc061759c3 100644
--- a/net/decnet/dn_fib.c
+++ b/net/decnet/dn_fib.c
@@ -551,7 +551,8 @@ int dn_fib_dump(struct sk_buff *skb, struct netlink_callback *cb)
                 if (t < s_t)
                         continue;
                 if (t > s_t)
-                        memset(&cb->args[1], 0, sizeof(cb->args)-sizeof(int));
+                        memset(&cb->args[1], 0,
+                               sizeof(cb->args) - sizeof(cb->args[0]));
                 tb = dn_fib_get_table(t, 0);
                 if (tb == NULL)
                         continue;