diff --git a/sys/netinet/sctp_usrreq.c b/sys/netinet/sctp_usrreq.c
index 29d63f989e7..4c9239f84df 100644
--- a/sys/netinet/sctp_usrreq.c
+++ b/sys/netinet/sctp_usrreq.c
@@ -361,8 +361,9 @@ sctp_getcred(SYSCTL_HANDLER_ARGS)
 	/* FIX, for non-bsd is this right? */
 	vrf_id = SCTP_DEFAULT_VRFID;
 
+	if (req->newptr == NULL)
+		return (EINVAL);
 	error = priv_check(req->td, PRIV_NETINET_GETCRED);
-
 	if (error)
 		return (error);
 
diff --git a/sys/netinet/tcp_subr.c b/sys/netinet/tcp_subr.c
index d633bd66034..dcd947384d9 100644
--- a/sys/netinet/tcp_subr.c
+++ b/sys/netinet/tcp_subr.c
@@ -2751,6 +2751,8 @@ tcp_getcred(SYSCTL_HANDLER_ARGS)
 	struct inpcb *inp;
 	int error;
 
+	if (req->newptr == NULL)
+		return (EINVAL);
 	error = priv_check(req->td, PRIV_NETINET_GETCRED);
 	if (error)
 		return (error);
@@ -2793,6 +2795,8 @@ tcp6_getcred(SYSCTL_HANDLER_ARGS)
 	int mapped = 0;
 #endif
 
+	if (req->newptr == NULL)
+		return (EINVAL);
 	error = priv_check(req->td, PRIV_NETINET_GETCRED);
 	if (error)
 		return (error);
diff --git a/sys/netinet/udp_usrreq.c b/sys/netinet/udp_usrreq.c
index c9d2f3e8ea7..6a3cffc8a05 100644
--- a/sys/netinet/udp_usrreq.c
+++ b/sys/netinet/udp_usrreq.c
@@ -820,6 +820,8 @@ udp_getcred(SYSCTL_HANDLER_ARGS)
 	struct inpcb *inp;
 	int error;
 
+	if (req->newptr == NULL)
+		return (EINVAL);
 	error = priv_check(req->td, PRIV_NETINET_GETCRED);
 	if (error)
 		return (error);
diff --git a/sys/netinet6/sctp6_usrreq.c b/sys/netinet6/sctp6_usrreq.c
index e38bf2b4ae6..0d59209ceed 100644
--- a/sys/netinet6/sctp6_usrreq.c
+++ b/sys/netinet6/sctp6_usrreq.c
@@ -375,6 +375,8 @@ sctp6_getcred(SYSCTL_HANDLER_ARGS)
 
 	vrf_id = SCTP_DEFAULT_VRFID;
 
+	if (req->newptr == NULL)
+		return (EINVAL);
 	error = priv_check(req->td, PRIV_NETINET_GETCRED);
 	if (error)
 		return (error);
diff --git a/sys/netinet6/udp6_usrreq.c b/sys/netinet6/udp6_usrreq.c
index bd40290da3d..a57ae112877 100644
--- a/sys/netinet6/udp6_usrreq.c
+++ b/sys/netinet6/udp6_usrreq.c
@@ -609,6 +609,8 @@ udp6_getcred(SYSCTL_HANDLER_ARGS)
 	struct inpcb *inp;
 	int error;
 
+	if (req->newptr == NULL)
+		return (EINVAL);
 	error = priv_check(req->td, PRIV_NETINET_GETCRED);
 	if (error)
 		return (error);