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| author | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2022-08-24 09:06:19 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2022-09-24 08:46:16 +0200 |
| commit | 2dc73b48665411a08c4e5f0f823dea8510761603 (patch) | |
| tree | 86bc5771f031897b9991301f475258808e7464b4 /drivers/media/cec | |
| parent | 93f65ce036863893c164ca410938e0968964b26c (diff) | |
| download | linux-2dc73b48665411a08c4e5f0f823dea8510761603.tar.bz2 | |
media: cros-ec-cec: limit msg.len to CEC_MAX_MSG_SIZE
I expect that the hardware will have limited this to 16, but just in
case it hasn't, check for this corner case.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media/cec')
| -rw-r--r-- | drivers/media/cec/platform/cros-ec/cros-ec-cec.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/media/cec/platform/cros-ec/cros-ec-cec.c b/drivers/media/cec/platform/cros-ec/cros-ec-cec.c index 3b583ed4da9d..e5ebaa58be45 100644 --- a/drivers/media/cec/platform/cros-ec/cros-ec-cec.c +++ b/drivers/media/cec/platform/cros-ec/cros-ec-cec.c @@ -44,6 +44,8 @@ static void handle_cec_message(struct cros_ec_cec *cros_ec_cec) uint8_t *cec_message = cros_ec->event_data.data.cec_message; unsigned int len = cros_ec->event_size; + if (len > CEC_MAX_MSG_SIZE) + len = CEC_MAX_MSG_SIZE; cros_ec_cec->rx_msg.len = len; memcpy(cros_ec_cec->rx_msg.msg, cec_message, len); |