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[71.126.255.178]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-91203ca1063sm2439906d6.5.2026.09.09.14.48.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Sep 2026 14:48:35 -0700 (PDT) Date: Wed, 09 Sep 2026 17:48:34 -0400 Message-ID: <5b09aa12a73fa955c49a4499dea6866d@paul-moore.com> Precedence: bulk X-Mailing-List: linux-hardening@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Mailer: pstg-pwork:20260909_1743/pstg-lib:20260909_1550/pstg-pwork:20260909_1743 From: Paul Moore To: Mohammed EL Kadiri Cc: Serge Hallyn , Vlastimil Babka , Kees Cook , linux-security-module@vger.kernel.org, linux-hardening@vger.kernel.org, linux-kernel@vger.kernel.org, Mohammed EL Kadiri Subject: Re: [PATCH v2] cred: prevent slab cache merging for cred_jar References: <20260611070054.6550-1-med08elkadiri@gmail.com> In-Reply-To: <20260611070054.6550-1-med08elkadiri@gmail.com> On Jun 11, 2026 Mohammed EL Kadiri 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 > Signed-off-by: Mohammed EL Kadiri > --- > 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