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From: Sebastian Ene <sebastianene@google.com>
To: Jens Wiklander <jens.wiklander@linaro.org>
Cc: catalin.marinas@arm.com, oupton@kernel.org,
	sudeep.holla@kernel.org, will@kernel.org, joey.gouly@arm.com,
	kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, android-kvm@google.com,
	maz@kernel.org, mrigendra.chaubey@gmail.com,
	op-tee@lists.trustedfirmware.org, perlarsen@google.com,
	seiden@linux.ibm.com, smostafa@google.com, sumit.garg@kernel.org,
	suzuki.poulose@arm.com, vdonnefort@google.com,
	yuzenghui@huawei.com, Sumit Garg <sumit.garg@oss.qualcomm.com>
Subject: Re: [PATCH v7 1/7] optee: ffa: Add NULL check in optee_ffa_lend_protmem
Date: Tue, 30 Jun 2026 10:13:33 +0000	[thread overview]
Message-ID: <akOWzVB_yw1-u5uN@google.com> (raw)
In-Reply-To: <CAHUa44GST=efeDepEHWs_=ehr7JVnkg+y0ZLebcLAGZXxpNegA@mail.gmail.com>

On Mon, Jun 29, 2026 at 10:53:33AM +0200, Jens Wiklander wrote:
> Hi,
> 
> On Wed, Jun 17, 2026 at 4:51 PM Sebastian Ene <sebastianene@google.com> wrote:
> >
> > From: Mostafa Saleh <smostafa@google.com>
> >
> > From: Mostafa Saleh <smostafa@google.com>
> >
> > Sashiko (locally) reports a possible null dereference under memory
> > pressure due to the lack of validation of the allocated pointer.
> >
> > Fix that by adding the missing check.
> >
> > Fixes: 2b78d79cdf96 ("optee: FF-A: dynamic protected memory allocation")
> > Signed-off-by: Mostafa Saleh <smostafa@google.com>
> > Signed-off-by: Sebastian Ene <sebastianene@google.com>
> > Reviewed-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
> > ---
> >  drivers/tee/optee/ffa_abi.c | 3 +++
> >  1 file changed, 3 insertions(+)
> 
> I'm picking up this isolated patch from the patchset.

Thanks for letting me know, I will spin a v8 but not include this patch
anymore since you picked it.

> 
> Cheers,
> Jens

Sebastian

  reply	other threads:[~2026-06-30 10:13 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-17 14:51 [PATCH v7 0/7] arm_ffa, KVM: Fix FF-A emad offset calculations Sebastian Ene
2026-06-17 14:51 ` [PATCH v7 1/7] optee: ffa: Add NULL check in optee_ffa_lend_protmem Sebastian Ene
2026-06-29  8:53   ` Jens Wiklander
2026-06-30 10:13     ` Sebastian Ene [this message]
2026-06-17 14:51 ` [PATCH v7 2/7] firmware: arm_ffa: Fix out-of-bound writes in ffa_setup_and_transmit() Sebastian Ene
2026-06-17 14:51 ` [PATCH v7 3/7] firmware: arm_ffa: Fix Endpoint Memory Access Descriptor offset calculation Sebastian Ene
2026-06-17 14:51 ` [PATCH v7 4/7] KVM: arm64: Fix bounds checking in do_ffa_mem_reclaim() Sebastian Ene
2026-06-18 16:19   ` Vincent Donnefort
2026-06-17 14:51 ` [PATCH v7 5/7] KVM: arm64: Validate the offset to the mem access descriptor Sebastian Ene
2026-06-18 16:56   ` Vincent Donnefort
2026-06-22  9:23     ` Sebastian Ene
2026-06-22 11:22       ` Sebastian Ene
2026-06-17 14:51 ` [PATCH v7 6/7] KVM: arm64: Ensure FFA ranges are page aligned Sebastian Ene
2026-06-18 17:09   ` Vincent Donnefort
2026-06-30  9:51     ` Sebastian Ene
2026-06-30 10:22       ` Mostafa Saleh
2026-06-17 14:51 ` [PATCH v7 7/7] KVM: arm64: Zero out the stack initialized data in the FFA handler Sebastian Ene
2026-06-18 17:14   ` Vincent Donnefort

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