From: Masahiro Yamada <yamada.masahiro@socionext.com>
To: Alexander Potapenko <glider@google.com>
Cc: James Morris <jmorris@namei.org>,
"Serge E. Hallyn" <serge@hallyn.com>,
linux-security-module@vger.kernel.org,
Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
kcc@google.com, Dmitry Vyukov <dvyukov@google.com>,
Kees Cook <keescook@chromium.org>,
sspatil@android.com,
Kernel Hardening <kernel-hardening@lists.openwall.com>
Subject: Re: [PATCH v2 2/2] initmem: introduce CONFIG_INIT_ALL_HEAP
Date: Fri, 5 Apr 2019 20:35:26 +0900 [thread overview]
Message-ID: <CAK7LNARV+_RNE4E5H37e9wH6iPyrzqsLtcWd0wLSt+vsEvncRA@mail.gmail.com> (raw)
In-Reply-To: <20190308132701.133598-3-glider@google.com>
On Fri, Mar 8, 2019 at 10:27 PM Alexander Potapenko <glider@google.com> wrote:
>
> diff --git a/security/Kconfig.initmem b/security/Kconfig.initmem
> index 27aec394365e..5ce49663777a 100644
> --- a/security/Kconfig.initmem
> +++ b/security/Kconfig.initmem
> @@ -13,6 +13,17 @@ config INIT_ALL_MEMORY
>
> if INIT_ALL_MEMORY
>
> +config INIT_ALL_HEAP
> + bool "Initialize all heap"
> + depends on INIT_ALL_MEMORY
> + select CONFIG_PAGE_POISONING
> + select CONFIG_PAGE_POISONING_NO_SANITY
> + select CONFIG_PAGE_POISONING_ZERO
> + select CONFIG_SLUB_DEBUG
This should like follows (no CONFIG_ prefix):
select PAGE_POISONING
select PAGE_POISONING_NO_SANITY
select PAGE_POISONING_ZERO
select SLUB_DEBUG
But, again, this causes unmet dependency if SLUB=n
> + default y
> + help
> + Enable page poisoning and slub poisoning by default.
> +
> config INIT_ALL_STACK
> bool "Initialize all stack"
> depends on INIT_ALL_MEMORY
> --
> 2.21.0.360.g471c308f928-goog
>
--
Best Regards
Masahiro Yamada
next prev parent reply other threads:[~2019-04-05 11:36 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-08 13:26 [PATCH v2 0/2] RFC: introduce CONFIG_INIT_ALL_MEMORY Alexander Potapenko
2019-03-08 13:27 ` [PATCH v2 1/2] initmem: introduce CONFIG_INIT_ALL_MEMORY and CONFIG_INIT_ALL_STACK Alexander Potapenko
2019-03-20 14:44 ` Alexander Potapenko
2019-03-21 17:47 ` Kees Cook
2019-04-05 11:18 ` Masahiro Yamada
2019-04-05 14:17 ` Alexander Potapenko
2019-03-08 13:27 ` [PATCH v2 2/2] initmem: introduce CONFIG_INIT_ALL_HEAP Alexander Potapenko
2019-04-05 11:35 ` Masahiro Yamada [this message]
2019-04-05 14:00 ` Alexander Potapenko
2019-04-08 16:43 ` Laura Abbott
2019-04-08 17:14 ` Kees Cook
2019-04-09 8:55 ` Alexander Potapenko
2019-04-09 17:01 ` Kees Cook
2019-04-18 13:02 ` Alexander Potapenko
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