From: Paul Moore <paul@paul-moore.com>
To: Mohammed EL Kadiri <med08elkadiri@gmail.com>
Cc: Serge Hallyn <serge@hallyn.com>,
Vlastimil Babka <vbabka@kernel.org>, Kees Cook <kees@kernel.org>,
linux-security-module@vger.kernel.org,
linux-hardening@vger.kernel.org, linux-kernel@vger.kernel.org,
Mohammed EL Kadiri <med08elkadiri@gmail.com>
Subject: Re: [PATCH v2] cred: prevent slab cache merging for cred_jar
Date: Wed, 09 Sep 2026 17:48:34 -0400 [thread overview]
Message-ID: <5b09aa12a73fa955c49a4499dea6866d@paul-moore.com> (raw)
In-Reply-To: <20260611070054.6550-1-med08elkadiri@gmail.com>
On Jun 11, 2026 Mohammed EL Kadiri <med08elkadiri@gmail.com> wrote:
>
> Add SLAB_NO_MERGE to cred_jar to ensure struct cred objects get
> dedicated slab pages, preventing the allocator from merging this
> cache with other similarly-sized caches. This is a hardening measure
> to provide type isolation for credential objects.
>
> Reviewed-by: Kees Cook <kees@kernel.org>
> Signed-off-by: Mohammed EL Kadiri <med08elkadiri@gmail.com>
> ---
> Changes in v2:
> - Collected Reviewed-by tag from Kees Cook.
> - No code changes from v1.
>
> kernel/cred.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Merged into lsm/dev, thanks!
--
paul-moore.com
prev parent reply other threads:[~2026-09-09 21:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-11 7:00 [PATCH v2] cred: prevent slab cache merging for cred_jar Mohammed EL Kadiri
2026-09-09 21:48 ` Paul Moore [this message]
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