mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

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>
This commit is contained in:
Hans Verkuil 2022-08-24 09:06:19 +02:00 committed by Mauro Carvalho Chehab
parent 93f65ce036
commit 2dc73b4866
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/media/cec/platform/cros-ec/cros-ec-cec.c
View File

@ -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);