ACK: [C/linux-azure][D/linux-azure][SRU][PATCH 1/1] UBUNTU: [Config]: enable PAGE_POISONING, PAGE_POISONING_NO_SANITY, PAGE_POISONING_ZERO

[Kleber Souza]

On 2/21/19 11:25 PM, Po-Hsu Lin wrote:
> BugLink: https://bugs.launchpad.net/bugs/1812624
>
> Enable these options to match config setting in the generic kernels and
> the requirement from the security team.
>
> Note that this should not have performance impact as this will need to
> be enabled with page_poison=1 kernel boot option.
>
> Signed-off-by: Po-Hsu Lin <po-hsu.lin at canonical.com>
> ---
>  debian.azure/config/config.common.ubuntu | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/debian.azure/config/config.common.ubuntu b/debian.azure/config/config.common.ubuntu
> index cb039d4..0030581 100644
> --- a/debian.azure/config/config.common.ubuntu
> +++ b/debian.azure/config/config.common.ubuntu
> @@ -3355,7 +3355,9 @@ CONFIG_PADATA=y
>  CONFIG_PAGE_COUNTER=y
>  # CONFIG_PAGE_EXTENSION is not set
>  # CONFIG_PAGE_OWNER is not set
> -# CONFIG_PAGE_POISONING is not set
> +CONFIG_PAGE_POISONING=y
> +CONFIG_PAGE_POISONING_NO_SANITY=y
> +CONFIG_PAGE_POISONING_ZERO=y
>  CONFIG_PAGE_POOL=y
>  CONFIG_PAGE_TABLE_ISOLATION=y
>  # CONFIG_PANASONIC_LAPTOP is not set

It makes sense to me to carry these config options from the main kernel.


Acked-by: Kleber Sacilotto de Souza <kleber.souza at canonical.com>