The size of the policy array should be one larger than genl_family.maxattr, or it
will lead to an off-by-one read during nlattr parsing because
gennl_family.maxattr should be the *largest expected* value
Signed-off-by: Kyle Zeng <zengyhkyle@xxxxxxxxx>
---
fs/smb/server/transport_ipc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/smb/server/transport_ipc.c b/fs/smb/server/transport_ipc.c
index b49d47bdafc..185db4d7f2b 100644
--- a/fs/smb/server/transport_ipc.c
+++ b/fs/smb/server/transport_ipc.c
@@ -74,7 +74,7 @@ static int handle_unsupported_event(struct sk_buff *skb, struct genl_info *info)
static int handle_generic_event(struct sk_buff *skb, struct genl_info *info);
static int ksmbd_ipc_heartbeat_request(void);
-static const struct nla_policy ksmbd_nl_policy[KSMBD_EVENT_MAX] = {
+static const struct nla_policy ksmbd_nl_policy[KSMBD_EVENT_MAX + 1] = {
[KSMBD_EVENT_UNSPEC] = {
.len = 0,
},
--
2.34.1
