Author: avg
Date: Tue Sep 29 11:58:21 2015
New Revision: 288362
URL: https://svnweb.freebsd.org/changeset/base/288362
Log:
sdt: start checking version field when parsing probe definitions
This is an extra safety measure.
MFC after: 21 days
Modified:
head/sys/cddl/dev/sdt/sdt.c
Modified: head/sys/cddl/dev/sdt/sdt.c
==============================================================================
--- head/sys/cddl/dev/sdt/sdt.c Tue Sep 29 11:55:26 2015 (r288361)
+++ head/sys/cddl/dev/sdt/sdt.c Tue Sep 29 11:58:21 2015 (r288362)
@@ -141,6 +141,12 @@ 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;
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