| From | Daniel Kurtz <> | Subject | [PATCH 03/20] Input: atmel_mxt_ts - verify object size in mxt_write_object | Date | Tue, 13 Mar 2012 20:04:06 +0800 |
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Don't allow writing past the length of an object.
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> --- 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) return -EINVAL; reg = object->start_address; -- 1.7.7.3
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