Make sure that an out-of-bounds read doesn't occur in the Sixaxis battery level lookup table in the event that the controller sends an invalid battery status value in the report.
Signed-off-by: Frank Praznik <[email protected]> --- drivers/hid/hid-sony.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c index a51a9c0..b39e3ab 100644 --- a/drivers/hid/hid-sony.c +++ b/drivers/hid/hid-sony.c @@ -854,7 +854,8 @@ static void sixaxis_parse_report(struct sony_sc *sc, __u8 *rd, int size) battery_capacity = 100; battery_charging = !(rd[30] & 0x01); } else { - battery_capacity = sixaxis_battery_capacity[rd[30]]; + __u8 index = rd[30] <= 5 ? rd[30] : 5; + battery_capacity = sixaxis_battery_capacity[index]; battery_charging = 0; } cable_state = !((rd[31] >> 4) & 0x01); -- 1.8.5.3 -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
