svn commit: r289804 - stable/9/sys/cddl/dev/sdt

[Andriy Gapon]

Author: avg
Date: Fri Oct 23 07:57:33 2015
New Revision: 289804
URL: https://svnweb.freebsd.org/changeset/base/289804

Log:
  MFC r288362: sdt: start checking version field when parsing probe definitions

Modified:
  stable/9/sys/cddl/dev/sdt/sdt.c
Directory Properties:
  stable/9/sys/   (props changed)

Modified: stable/9/sys/cddl/dev/sdt/sdt.c
==============================================================================
--- stable/9/sys/cddl/dev/sdt/sdt.c	Fri Oct 23 07:57:21 2015	(r289803)
+++ stable/9/sys/cddl/dev/sdt/sdt.c	Fri Oct 23 07:57:33 2015	(r289804)
@@ -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;