Re: [PATCH] mtd: rawnand: fsl_upm: Fix an off-by one test in fun_exec_op()

[Miquel Raynal]

On Wed, 2023-07-19 at 21:55:01 UTC, Christophe JAILLET wrote:
> 'op-cs' is copied in 'fun->mchip_number' which is used to access the
> 'mchip_offsets' and the 'rnb_gpio' arrays.
> These arrays have NAND_MAX_CHIPS elements, so the index must be below this
> limit.
> 
> Fix the sanity check in order to avoid the NAND_MAX_CHIPS value. This
> would lead to out-of-bound accesses.
> 
> Fixes: 54309d657767 ("mtd: rawnand: fsl_upm: Implement exec_op()")
> Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
> Reviewed-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

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

Miquel