@@ -62,6 +62,7 @@ struct table_set_header {
#define YYTD_ID_ACCEPT2 6
#define YYTD_ID_NXT 7
#define YYTD_ID_TSIZE 8
+#define YYTD_ID_MAX 8
#define YYTD_DATA8 1
#define YYTD_DATA16 2
@@ -74,6 +74,8 @@ static struct table_header *unpack_table(char *blob, size_t bsize)
* it every time we use td_id as an index
*/
th.td_id = be16_to_cpu(*(u16 *) (blob)) - 1;
+ if (th.td_id > YYTD_ID_MAX)
+ goto out;
th.td_flags = be16_to_cpu(*(u16 *) (blob + 2));
th.td_lolen = be32_to_cpu(*(u32 *) (blob + 8));
blob += sizeof(struct table_header);
BugLink: http://bugs.launchpad.net/bugs/1615882 Signed-off-by: John Johansen <john.johansen@canonical.com> --- security/apparmor/include/match.h | 1 + security/apparmor/match.c | 2 ++ 2 files changed, 3 insertions(+)