From 8bbf6db63301d55f75b9cd06762126fc2a3f4970 Mon Sep 17 00:00:00 2001
From: avg <avg@ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f>
Date: Fri, 23 Oct 2015 07:57:21 +0000
Subject: [PATCH] MFC r288362: sdt: start checking version field when parsing
 probe definitions

git-svn-id: svn://svn.freebsd.org/base/stable/10@289803 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
---
 sys/cddl/dev/sdt/sdt.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sys/cddl/dev/sdt/sdt.c b/sys/cddl/dev/sdt/sdt.c
index 34162e146..cf7b53223 100644
--- a/sys/cddl/dev/sdt/sdt.c
+++ b/sys/cddl/dev/sdt/sdt.c
@@ -142,6 +142,12 @@ sdt_create_probe(struct sdt_probe *probe)
 	char *to;
 	size_t len;
 
+	if (probe->version != (int)sizeof(*probe)) {
+		printf("ignoring probe %p, version %u expected %u\n",
+		    probe, probe->version, (int)sizeof(*probe));
+		return;
+	}
+
 	TAILQ_FOREACH(prov, &sdt_prov_list, prov_entry)
 		if (strcmp(prov->name, probe->prov->name) == 0)
 			break;
-- 
2.45.0