From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 41C9131D399; Mon, 27 Oct 2025 19:19:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761592756; cv=none; b=tsSk7e2EuloCovoe74YBLKOkFX3JNzjuO1kLOstmRDB/Sl6ix9oGpsv5+X7zMA2elSbISEwLe55Ts/JXleNQFoPBCp4w1M8uH5Su1DCUXzqc1g5kBDy6YgMKlieIYkqichDnVV0r9PpnmkGB5cug7Ee3AX6HFglK3bd8FrLAkMI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761592756; c=relaxed/simple; bh=xUUkteqWcu9hH5Hn00e9CklNpb08idsw3Y8Z1VsfKoI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UpCmzwC3qfr9IiJn6Y27Ps7xAU81UjmH1ywOAEmhYdsmJ8Dnj8I+wmk4oXh64TNGF4TsNuuOfhU0z0vasNYb+UeF3W/PsiSDlFUUuEk8V1Iq0nFPYeKyvPyZSD/FVY91Z/izgA6o6vsZ3OGDOKcSRcr4Xvbol3H0DA8DrBPkAYU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=iKNZACVB; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="iKNZACVB" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CB17EC4CEF1; Mon, 27 Oct 2025 19:19:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1761592756; bh=xUUkteqWcu9hH5Hn00e9CklNpb08idsw3Y8Z1VsfKoI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iKNZACVBGYbdbv+lR4wrvtRP8rwN0NHJfIxfR1CoifxsZMNPkTA9A0pQjt3wIEdZz C04mMDTaj8Q6solY8nEAStmyM1yhpRY9Pqr0NajnGx62G7IcRdKcBlJ/9yd2TNM3+k SOV9HVau0r9fw2XCIpffd0y8nmULY5UYrJOaXrME= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Haoyu Li , Bartosz Golaszewski Subject: [PATCH 6.6 84/84] gpio: ljca: Initialize num before accessing item in ljca_gpio_config Date: Mon, 27 Oct 2025 19:37:13 +0100 Message-ID: <20251027183441.053437059@linuxfoundation.org> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20251027183438.817309828@linuxfoundation.org> References: <20251027183438.817309828@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Haoyu Li commit 3396995f9fb6bcbe0004a68118a22f98bab6e2b9 upstream. With the new __counted_by annocation in ljca_gpio_packet, the "num" struct member must be set before accessing the "item" array. Failing to do so will trigger a runtime warning when enabling CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE. Fixes: 1034cc423f1b ("gpio: update Intel LJCA USB GPIO driver") Cc: stable@vger.kernel.org Signed-off-by: Haoyu Li Link: https://lore.kernel.org/stable/20241203141451.342316-1-lihaoyu499%40gmail.com Signed-off-by: Bartosz Golaszewski Signed-off-by: Greg Kroah-Hartman --- drivers/gpio/gpio-ljca.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpio/gpio-ljca.c +++ b/drivers/gpio/gpio-ljca.c @@ -82,9 +82,9 @@ static int ljca_gpio_config(struct ljca_ int ret; mutex_lock(&ljca_gpio->trans_lock); + packet->num = 1; packet->item[0].index = gpio_id; packet->item[0].value = config | ljca_gpio->connect_mode[gpio_id]; - packet->num = 1; ret = ljca_transfer(ljca_gpio->ljca, LJCA_GPIO_CONFIG, (u8 *)packet, struct_size(packet, item, packet->num), NULL, 0);