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[146.148.11.143]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-475671d02f5sm6914506f8f.28.2026.06.30.03.13.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Jun 2026 03:13:37 -0700 (PDT) Date: Tue, 30 Jun 2026 10:13:33 +0000 From: Sebastian Ene To: Jens Wiklander 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 Subject: Re: [PATCH v7 1/7] optee: ffa: Add NULL check in optee_ffa_lend_protmem Message-ID: References: <20260617145130.3729015-1-sebastianene@google.com> <20260617145130.3729015-2-sebastianene@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: 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 wrote: > > > > From: Mostafa Saleh > > > > From: Mostafa Saleh > > > > 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 > > Signed-off-by: Sebastian Ene > > Reviewed-by: Sumit Garg > > --- > > 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