github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-02 11:33:28 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

media: s5p_cec: limit msg.len to CEC_MAX_MSG_SIZE

Browse Source 
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 09:02:42 +02:00 committed by Mauro Carvalho Chehab
parent c53e3a049f
commit 93f65ce036
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/s5p/s5p_cec.c
View File

@ -115,6 +115,8 @@ static irqreturn_t s5p_cec_irq_handler(int irq, void *priv)
dev_dbg(cec->dev, "Buffer overrun (worker did not process previous message)\n");
cec->rx = STATE_BUSY;
cec->msg.len = status >> 24;
if (cec->msg.len > CEC_MAX_MSG_SIZE)
cec->msg.len = CEC_MAX_MSG_SIZE;
cec->msg.rx_status = CEC_RX_STATUS_OK;
s5p_cec_get_rx_buf(cec, cec->msg.len,
cec->msg.msg);