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 826301F75BE; Tue, 17 Dec 2024 17:25:26 +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=1734456326; cv=none; b=VCsqmnpa/5CLjC6LCiS4Vr7YUwiYcUNdrbZLssbU8yGMvR0xmkZzVpFk6rtPSCz4ByXqgavYcsBYHHhU99mFSTRw4Cz+KIYVHZUKz1Y3CD7USDzZe3rma00R/bLKZrkYNkj/nAkg9c4ZBSIDRDXehZ3FGRs4hWQocPN9nMXnkD0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734456326; c=relaxed/simple; bh=Nrn7N4lvfgaJUKjj+XdD47HdYkAtJdwM7zY1mu3UI7k=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=E9Sjx5Y7w+UirgW+IseKJz82sXjKr7ERvdbaQFn+RLL6PlNmWdDjQaqDd1QLUc6rpteCqtdpXD/1lywsgA37O1HEUts57Ok/PNnf8k3+TCauFpI+7E4A2DHVGDUO8z0VpLG68r36hqRnCta53DeRYUTpn79a1Jl5vjyIJM8SwoQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=WoMwC41Z; 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="WoMwC41Z" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D50FAC4CED3; Tue, 17 Dec 2024 17:25:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1734456326; bh=Nrn7N4lvfgaJUKjj+XdD47HdYkAtJdwM7zY1mu3UI7k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WoMwC41ZmVeELb2VpfEFZVpE36OVa1GgShNp0oeZL4NUp0YnITieaKWVbCnO9eIDA tzeP1Xtggu2a7Q0HM8hjy7peiVGQm8o8pJjre+aHbBY2uXf5rIxRRmEzcJgsCJwwH6 qQR2htUokyUDiR38ABThPulXsJkvIpszI08YoMi8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Haoyu Li , Bartosz Golaszewski Subject: [PATCH 6.12 024/172] gpio: ljca: Initialize num before accessing item in ljca_gpio_config Date: Tue, 17 Dec 2024 18:06:20 +0100 Message-ID: <20241217170547.264018454@linuxfoundation.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241217170546.209657098@linuxfoundation.org> References: <20241217170546.209657098@linuxfoundation.org> User-Agent: quilt/0.67 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 6.12-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(-) diff --git a/drivers/gpio/gpio-ljca.c b/drivers/gpio/gpio-ljca.c index d67b912d884d..c6c31e6146c7 100644 --- a/drivers/gpio/gpio-ljca.c +++ b/drivers/gpio/gpio-ljca.c @@ -82,9 +82,9 @@ static int ljca_gpio_config(struct ljca_gpio_dev *ljca_gpio, u8 gpio_id, 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); -- 2.47.1