crypto: ecc - Remove stack VLA usage
authorKees Cook <keescook@chromium.org>
Thu, 8 Mar 2018 21:57:02 +0000 (13:57 -0800)
committerHerbert Xu <herbert@gondor.apana.org.au>
Fri, 16 Mar 2018 15:35:53 +0000 (23:35 +0800)
commit14de52112ee70ca289fa77bf2d9cbc79fd2c811f
treeaadb21d93cde2da9a059f4660d8c8376485526c2
parentb698a9f4c5c52317db486b069190c7e3d2b97e7e
crypto: ecc - Remove stack VLA usage

On the quest to remove all VLAs from the kernel[1], this switches to
a pair of kmalloc regions instead of using the stack. This also moves
the get_random_bytes() after all allocations (and drops the needless
"nbytes" variable).

[1] https://lkml.org/lkml/2018/3/7/621

Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto/ecc.c