Re: [PATCH v4 4/5] mtd: rawnand: brcmnand: Fix potential out-of-bounds access in oob write

On Thu, 2023-07-06 at 18:29:08 UTC, William Zhang wrote:

When the oob buffer length is not in multiple of words, the oob write function does out-of-bounds read on the oob source buffer at the last iteration. Fix that by always checking length limit on the oob buffer read and fill with 0xff when reaching the end of the buffer to the oob registers.

Fixes: 27c5b17cd1b1 ("mtd: nand: add NAND driver "library" for Broadcom STB NAND controller") Signed-off-by: William Zhang william.zhang@broadcom.com Reviewed-by: Florian Fainelli florian.fainelli@broadcom.com Cc: stable@vger.kernel.org

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks.

Miquel