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[198.0.35.241]) by smtp.gmail.com with ESMTPSA id ji5-20020a170903324500b001bc445e249asm1128036plb.124.2023.08.04.01.13.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Aug 2023 01:13:29 -0700 (PDT) Date: Fri, 4 Aug 2023 01:13:29 -0700 From: Kees Cook To: Arnd Bergmann , Lecopzer Chen Cc: Russell King , Arnd Bergmann , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, Alexander Viro , Linus Walleij , yj.chiang@mediatek.com, linux-hardening@vger.kernel.org Subject: Re: [PATCH v5 04/10] ARM: syscall: always store thread_info->abi_syscall Message-ID: <202308040113.5A35E32B4B@keescook> References: <20210726141141.2839385-1-arnd@kernel.org> <20210726141141.2839385-5-arnd@kernel.org> <202308031551.034F346@keescook> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <202308031551.034F346@keescook> X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 5DE43C0018 X-Stat-Signature: 395rm9rrkcest3qpxapyzagf8wsprefy X-Rspam-User: X-HE-Tag: 1691136811-528135 X-HE-Meta: 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 6ga0Tf5S ul48O+pToJBC99jcBswTn2AA/+LuMlcThuEB3mt8KwSLRST5DKxDACQXmraFekaYlSOPs2zPfhYCOcPJI+43BvxHvvclOpZzhp2hWRf+0XenldDrS4H+71NQVuhbgCE6nVPTVXStbvwMcEkYcDSdTg7SJEhqp3h8GH6UOYtaCeIsmoO6UQtVZXE9CWK16bDc4WwJHz/bfAIX1rSlkW1SqoM/+KM2snDZCiCXH7jp125MbdEpi6/3xtY/Fye6WsFTUmiZiGmJ1WFXGQ783xM4XmMNu+hhhIxWLwf3JkyCfywlE5L4wwPalxjjs4wG2RLZzTwVh4509DWozTgfTl/JkArHGrLnA2HQo/+xBREZSgCmHBzFi3ZVQYohxh7iphz51AkXnYkMFKTvrBvHXJGYHY+lUqgugDI77e9cGvyOgNYho9Jt1l7C6vsHw7kW+L5zSdkr5anDBcVYUx9w= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000050, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, Aug 03, 2023 at 04:17:24PM -0700, Kees Cook wrote: > Anyway, I'll keep debugging this, but figured I'd mention it in case > anyone else had been seeing issues in here. Okay, I think I have a working patch now. Sent here: https://lore.kernel.org/lkml/20230804071045.never.134-kees@kernel.org/ -- Kees Cook