diff --git a/sys/compat/linuxkpi/common/src/linux_dmi.c b/sys/compat/linuxkpi/common/src/linux_dmi.c
--- a/sys/compat/linuxkpi/common/src/linux_dmi.c
+++ b/sys/compat/linuxkpi/common/src/linux_dmi.c
@@ -77,20 +77,25 @@
 static bool
 linux_dmi_matches(const struct dmi_system_id *dsi)
 {
+	enum dmi_field slot;
 	int i;
 
 	for (i = 0; i < nitems(dsi->matches); i++) {
-		if (dsi->matches[i].slot == DMI_NONE)
+		slot = dsi->matches[i].slot;
+		if (slot == DMI_NONE)
 			break;
+		if (slot >= DMI_STRING_MAX ||
+		    dmi_data[slot] == NULL)
+			return (false);
 		if (dsi->matches[i].exact_match) {
-			return (dmi_match(dsi->matches[i].slot,
-			    dsi->matches[i].substr));
-		} else {
-			return (strstr(dmi_data[dsi->matches[i].slot],
-				    dsi->matches[i].substr) != NULL);
+			if (dmi_match(slot, dsi->matches[i].substr))
+				continue;
+		} else if (strstr(dmi_data[slot],
+			dsi->matches[i].substr) != NULL) {
+			continue;
 		}
+		return (false);
 	}
-
 	return (true);
 }
 
diff --git a/sys/sys/param.h b/sys/sys/param.h
--- a/sys/sys/param.h
+++ b/sys/sys/param.h
@@ -76,7 +76,7 @@
  * cannot include sys/param.h and should only be updated here.
  */
 #undef __FreeBSD_version
-#define __FreeBSD_version 1400059
+#define __FreeBSD_version 1400060
 
 /*
  * __FreeBSD_kernel__ indicates that this system uses the kernel of FreeBSD,