1 files changed, 8 insertions, 5 deletions

diff --git a/sys/net/bpf.c b/sys/net/bpf.c
index 91a453a6d97b..92a3b30f5f07 100644
--- a/sys/net/bpf.c
+++ b/sys/net/bpf.c
@@ -2807,7 +2807,8 @@ bpfstats_fill_xbpf(struct xbpf_d *d, struct bpf_d *bd)
 static int
 bpf_stats_sysctl(SYSCTL_HANDLER_ARGS)
 {
-	struct xbpf_d *xbdbuf, *xbd, zerostats;
+	static const struct xbpf_d zerostats;
+	struct xbpf_d *xbdbuf, *xbd, tempstats;
 	int index, error;
 	struct bpf_if *bp;
 	struct bpf_d *bd;
@@ -2827,11 +2828,13 @@ bpf_stats_sysctl(SYSCTL_HANDLER_ARGS)
 	 * as we aren't allowing the user to set the counters currently.
 	 */
 	if (req->newptr != NULL) {
-		if (req->newlen != sizeof(zerostats))
+		if (req->newlen != sizeof(tempstats))
 			return (EINVAL);
-		bzero(&zerostats, sizeof(zerostats));
-		xbd = req->newptr;
-		if (bcmp(xbd, &zerostats, sizeof(*xbd)) != 0)
+		memset(&tempstats, 0, sizeof(tempstats));
+		error = SYSCTL_IN(req, &tempstats, sizeof(tempstats));
+		if (error)
+			return (error);
+		if (bcmp(&tempstats, &zerostats, sizeof(tempstats)) != 0)
 			return (EINVAL);
 		bpf_zero_counters();
 		return (0);