tps6598x_block_read already checks for the maximum length of the read
but tps6598x_block_write does not. Add the symmetric check there as
well.
Signed-off-by: Sven Peter <sven@xxxxxxxxxxxxx>
---
v1 -> v2:
- removed the WARN_ON to not crash machines running with panic-on-warn
as pointed out by greg k-h
drivers/usb/typec/tipd/core.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/typec/tipd/core.c b/drivers/usb/typec/tipd/core.c
index c18ec3785592..8c79ba17a157 100644
--- a/drivers/usb/typec/tipd/core.c
+++ b/drivers/usb/typec/tipd/core.c
@@ -139,6 +139,9 @@ static int tps6598x_block_write(struct tps6598x *tps, u8 reg,
{
u8 data[TPS_MAX_LEN + 1];
+ if (len + 1 > sizeof(data))
+ return -EINVAL;
+
if (!tps->i2c_protocol)
return regmap_raw_write(tps->regmap, reg, val, len);
--
2.25.1
