diff options
| author | Marc Kleine-Budde <mkl@pengutronix.de> | 2016-12-05 11:44:23 +0100 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-07-04 11:51:04 +0200 |
| commit | f4f13b6cd202056ae7f8eb21488f2abe5bc53913 (patch) | |
| tree | 3363747474392c920e2bdc408954042fb5c1eeb8 /include | |
| parent | e918990775c52eeb88a818f8691bfad24b9c85ca (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: Willy Tarreau <w@1wt.eu>
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 e52958d7c..3018528bd 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 */ |