[PATCH 04/14 v3] Input: atmel_mxt_ts - verify object size in mxt_write_object
From: Daniel Kurtz <hidden>
Date: 2012-04-18 13:22:10
Also in:
lkml
Subsystem:
atmel maxtouch driver, input (keyboard, mouse, joystick, touchscreen) drivers, the rest · Maintainers:
Nick Dyer, Dmitry Torokhov, Linus Torvalds
Don't allow writing past the length of an object. Signed-off-by: Daniel Kurtz <redacted> --- 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 517bb96..1d0639d 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c@@ -516,7 +516,7 @@ static int mxt_write_object(struct mxt_data *data, u16 reg; object = mxt_get_object(data, type); - if (!object) + if (!object || offset >= object->size + 1) return -EINVAL; reg = object->start_address;
--
1.7.7.3