diff --git a/fs/smb/common/smbdirect/smbdirect.h b/fs/smb/common/smbdirect/smbdirect.h
index e70a21eb57f0..8fbffe3eb845 100644
--- a/fs/smb/common/smbdirect/smbdirect.h
+++ b/fs/smb/common/smbdirect/smbdirect.h
@@ -32,8 +32,8 @@ struct smbdirect_socket_parameters {
 	__u32 resolve_route_timeout_msec;
 	__u32 rdma_connect_timeout_msec;
 	__u32 negotiate_timeout_msec;
-	__u8  initiator_depth;
-	__u8  responder_resources;
+	__u16 initiator_depth;     /* limited to U8_MAX */
+	__u16 responder_resources; /* limited to U8_MAX */
 	__u16 recv_credit_max;
 	__u16 send_credit_target;
 	__u32 max_send_size;
diff --git a/fs/smb/common/smbdirect/smbdirect_socket.c b/fs/smb/common/smbdirect/smbdirect_socket.c
index 1e3b361728cc..4003753bea26 100644
--- a/fs/smb/common/smbdirect/smbdirect_socket.c
+++ b/fs/smb/common/smbdirect/smbdirect_socket.c
@@ -166,6 +166,11 @@ int smbdirect_socket_set_initial_parameters(struct smbdirect_socket *sc,
 	if (sp->flags & ~SMBDIRECT_FLAG_PORT_RANGE_MASK)
 		return -EINVAL;
 
+	if (sp->initiator_depth > U8_MAX)
+		return -EINVAL;
+	if (sp->responder_resources > U8_MAX)
+		return -EINVAL;
+
 	if (sp->flags & SMBDIRECT_FLAG_PORT_RANGE_ONLY_IB &&
 	    sp->flags & SMBDIRECT_FLAG_PORT_RANGE_ONLY_IW)
 		return -EINVAL;