malhuda/msm-4.14
1
0
Fork 0
mirror of https://github.com/rd-stuffs/msm-4.14.git synced 2025-02-20 11:45:48 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

media: dw2102: fix a potential buffer overflow

Browse Source 
commit 1c73d0b29d04bf4082e7beb6a508895e118ee30d upstream.

As pointed by smatch:
	 drivers/media/usb/dvb-usb/dw2102.c:802 su3000_i2c_transfer() error: __builtin_memcpy() '&state->data[4]' too small (64 vs 67)

That seemss to be due to a wrong copy-and-paste.

Fixes: 0e148a522b84 ("media: dw2102: Don't translate i2c read into write")

Reported-by: Hans Verkuil <hverkuil@xs4all.nl>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit 39fb2a0c2e78d9b2de726be119e6d06e38aa4ed4)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
This commit is contained in:
Mauro Carvalho Chehab 2024-04-29 15:15:05 +01:00 committed by Vegard Nossum
parent a64eeaefb3
commit 9c65534445
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/media/usb/dvb-usb/dw2102.c
View File

@ -791,7 +791,7 @@ static int su3000_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
if (msg[j].flags & I2C_M_RD) {
/* single read */
if (1 + msg[j].len > sizeof(state->data)) {
if (4 + msg[j].len > sizeof(state->data)) {
warn("i2c rd: len=%d is too big!\n", msg[j].len);
num = -EOPNOTSUPP;
break;