mtd: nand: atmel: fix buffer overflow in atmel_pmecc_user
authorRichard Genoud <richard.genoud@gmail.com>
Wed, 27 Sep 2017 12:49:17 +0000 (14:49 +0200)
committerBoris Brezillon <boris.brezillon@free-electrons.com>
Wed, 27 Sep 2017 15:33:28 +0000 (17:33 +0200)
commit36de80740008e6a4a55115b4a92e2059e47c1cba
tree3ddf803d3eb94de9ccb466f10deb5ae48ff058e8
parent7e439681af82984045efc215437ebb2ca8d33a4c
mtd: nand: atmel: fix buffer overflow in atmel_pmecc_user

When calculating the size needed by struct atmel_pmecc_user *user,
the dmu and delta buffer sizes were forgotten.
This lead to a memory corruption (especially with a large ecc_strength).

Link: http://lkml.kernel.org/r/1506503157.3016.5.camel@gmail.com
Fixes: f88fc122cc34 ("mtd: nand: Cleanup/rework the atmel_nand driver")
Cc: stable@vger.kernel.org
Reported-by: Richard Genoud <richard.genoud@gmail.com>
Pointed-at-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Reviewed-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
drivers/mtd/nand/atmel/pmecc.c