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Wed, 11 Nov 2026 22:27:18 -0800 (PST) Received: from andrew.office ([192.145.132.58]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-4982eedfb36sm14820585f8f.0.2026.11.11.22.27.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Nov 2026 22:27:17 -0800 (PST) From: Andrew Gaylard To: Lee Jones Cc: Dvorkin Dmitry , Wells Lu , Linus Walleij , linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH 09/10] pinctrl: sunplus: Validate pin_func index in sppctl_dt_node_to_map() In-Reply-To: <20261111215256.1982044-10-lee@kernel.org> (Lee Jones's message of "Wed, 11 Nov 2026 21:51:54 +0000") References: <20261111215256.1982044-1-lee@kernel.org> <20261111215256.1982044-10-lee@kernel.org> User-Agent: mu4e 1.12.14; emacs 30.2 Date: Thu, 12 Nov 2026 08:27:11 +0200 Message-ID: X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261111_222721_738906_3441D673 X-CRM114-Status: UNSURE ( 8.61 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -1.9 (-) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-8.9 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Lee Jones writes: > In sppctl_dt_node_to_map(), the validation loop checks that pin_num is > within sppctl_pins_all_sz, but does not validate pin_func (bits 15:8) > before indexing sppctl_list_funcs[pin_func] for fully-pinmuxed pins. > Check that pin_func is less than sppctl_list_funcs_sz when pin_type > selects a mux function. > > Fixes: aa74c44be19c ("pinctrl: Add driver for Sunplus SP7021") > Closes: https://sashiko.dev/#/bug/linux-977252d6-b0cc-4d3a-ae2d-59d1e2f8a649 > Cc: stable@vger.kernel.org > Signed-off-by: Lee Jones > --- Reviewed-by: Andrew Gaylard Tested-by: Andrew Gaylard # on a Figment Design HW84 board