diff options
| author | Marc Kleine-Budde <mkl@pengutronix.de> | 2016-12-05 11:44:23 +0100 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2017-01-26 17:22:18 +0100 |
| commit | 9f412aa5bf276de789651cb3a64ea73877168fe9 (patch) | |
| tree | 32e73a3e81270e0f3dc12444f36daac7e10ad6fe /include | |
| parent | d9dba3a93f5427e643a81e6ba2da81898ac84792 (diff) | |
can: raw: raw_setsockopt: limit number of can_filter that can be set
commit 332b05ca7a438f857c61a3c21a88489a21532364 upstream.
This patch adds a check to limit the number of can_filters that can be
set via setsockopt on CAN_RAW sockets. Otherwise allocations > MAX_ORDER
are not prevented resulting in a warning.
Reference: https://lkml.org/lkml/2016/12/2/230
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Tested-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/can.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/can.h b/include/uapi/linux/can.h index e52958d7c2d1..3018528bd1bf 100644 --- a/include/uapi/linux/can.h +++ b/include/uapi/linux/can.h @@ -158,5 +158,6 @@ struct can_filter { }; #define CAN_INV_FILTER 0x20000000U /* to be set in can_filter.can_id */ +#define CAN_RAW_FILTER_MAX 512 /* maximum number of can_filter set via setsockopt() */ #endif /* CAN_H */ |