openvswitch: Reset key metadata for packet execution.

Userspace packet execute command pass down flow key for given packet. But userspace can skip some parameter with zero value. Therefore kernel needs to initialize key metadata to zero. Fixes: 0714812 ("openvswitch: Eliminate memset() from flow_extract.") Signed-off-by: Pravin B Shelar <[email protected]> Signed-off-by: David S. Miller <[email protected]>
dtwlin · Feb 11, 2015 · b35725a · b35725a
1 parent 673e2ba
commit b35725a
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
@@ -717,6 +717,8 @@ int ovs_flow_key_extract_userspace(const struct nlattr *attr,
 {
 	int err;
 
+	memset(key, 0, OVS_SW_FLOW_KEY_METADATA_SIZE);
+
 	/* Extract metadata from netlink attributes. */
 	err = ovs_nla_get_flow_metadata(attr, key, log);
 	if (err)