[PATCH 05/16 v2] Input: atmel_mxt_ts - verify object size in mxt_write_object
From: Daniel Kurtz <hidden>
Date: 2012-03-29 16:53:15
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 920b35c..242976d 100644
--- a/drivers/input/touchscreen/atmel_mxt_ts.c
+++ b/drivers/input/touchscreen/atmel_mxt_ts.c@@ -501,7 +501,7 @@ 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