On 03/13/2012 09:04 PM, Daniel Kurtz wrote:
Don't allow writing past the length of an object. Signed-off-by: Daniel Kurtz<djkurtz@xxxxxxxxxxxx> --- drivers/input/touchscreen/atmel_mxt_ts.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index 0d4d492..e18c698 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -506,7 +506,7 @@ static int mxt_write_object(struct mxt_data *data, u16 reg; object = mxt_get_object(data, type); - if (!object) + if (!object || offset>= object->size)
The object->size is actual object size - 1. + if (!object || offset> object->size)
return -EINVAL; reg = object->start_address;
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