Re: [PATCH] perf/arm-cci: Remove VLA usage

From: Will Deacon
Date: Mon Jul 02 2018 - 12:49:29 EST


On Fri, Jun 29, 2018 at 11:45:36AM -0700, Kees Cook wrote:
> In the quest to remove all stack VLA usage from the kernel[1], this
> removes the VLA in favor of a maximum size and adds a sanity check
> at registration time. The sizes are all explicitly enumerated already,
> so this just collects them into macros.
>
> [1] https://lkml.kernel.org/r/CA+55aFzCG-zNmZwX4A2FQpadafLfEzK6CC=qPXydAacU1RqZWA@xxxxxxxxxxxxxx
>
> Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
> ---
> drivers/perf/arm-cci.c | 38 ++++++++++++++++++++++++++------------
> 1 file changed, 26 insertions(+), 12 deletions(-)

Thanks, I'll queue this up for 4.19.

Will