From patchwork Wed Jun 19 21:13:21 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Javier Carrasco X-Patchwork-Id: 13704603 Received: from mail-ej1-f54.google.com (mail-ej1-f54.google.com [209.85.218.54]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D8FE315A863; Wed, 19 Jun 2024 21:13:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.54 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718831607; cv=none; b=b2rRL41Y7qRr2jCPLhBefynZtMZo3uBXjuuWR8Of/JZhtg16ZanGsT/JO5/JjMBqJ4K1pOKnFy6FoibL/4N+eue2MyuRcOzD+zKPHJbeoD0dFHAs7wr3wvZxfJjFPvz9AATbQjux0t5rHkjCwsyZUNJcwe54bkzAfSfyHhkUVFs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718831607; c=relaxed/simple; bh=zvTtbeaAyONgICOPzhezw+GO8rpkhjCZ3SdmJfMy49E=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=JXRRv/Dj4WC7UU8mizQp+SOwwVvn5UwRwoHZWUE+0GdikKCtS82rJtAGuYZyGhvhRPmv0I0p5tQcWxw2x8O09yMg/NuVgsWtWJKPbcc1fUKsLuDMz9eo51tDi2R/UZQV+UvH8tLj6lUYdZn1KAP8FKPTxkmidpz92uimT7783Vc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=cO4AMjON; arc=none smtp.client-ip=209.85.218.54 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="cO4AMjON" Received: by mail-ej1-f54.google.com with SMTP id a640c23a62f3a-a6265d3ba8fso18286466b.0; Wed, 19 Jun 2024 14:13:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1718831604; x=1719436404; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=QsQDbQzQVBu7+yQP1ySDnZ1NqGcFTqbtsAzjQXiybgw=; b=cO4AMjONRCF6w62hRSj6vcoK4SNmOZjwvvXswxSXmLPnCKjb047mgaLg2f97kgfVg/ /CZPsE/DBe3JvNdOwWV3ixUlMfptkJa5kJl2siybQ67ajWdlOVE3oL7gw/LgnESfMysA Aasafm5J04RziCYZfwuNU4fJu0f+Owg5G9IA3/WpEhkd9NlTYRIosae+KfygvsARGalT hCAAfSXygv6eZywcn9NoR9jS34M7dOlwDTKYzd0UaW6kXsZHAIeb2D29UW9YHCmjhBC/ wCMIptr/t89tKKHUfQNAazOeIRxGpQFWt6hzCCs2tek4U69DkACbfNZfmRRX2aA4KtXc 91fg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718831604; x=1719436404; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=QsQDbQzQVBu7+yQP1ySDnZ1NqGcFTqbtsAzjQXiybgw=; b=kRl1Gzfj7DBfjgqeu3nQs5IK1j2Xpen0P9MQEihHQKpDcJq1Z8YHIs8GYkdbZG6Ooz EqfrsyFBb7L1vjxpdTxCH+sQkmUalH2kouRhKyTG+D/ffpIMy1b0h1GW3HBGB61MLVV1 WFF31B3hO3uyPeyZrD5oqgU1/wbTfDTXDj48Vn4QXpOlBxOPXEbRQKhLdVf0NuGSZ6zq GjZlZ//9mzoW6fbnjf+2j4ebWL9azdhvfpwNULMUWiZxRwua6QdY4bKKjupLbeduDEGW dgBcg1sEh8lZo+tbo7nXucw0A7y5UVBmezfyQ8Bhy9+y4aW6Uzk3WrG/JRXXWaV77c20 BH9g== X-Forwarded-Encrypted: i=1; AJvYcCWgxXk+6i71xypRAtaGiLJ+OsaFrSoYW8qhIiJp7Z/2KqtE367tcDQu8wC5rQOhjntEielke6VlE7WQxovT9cOXJW1FJQv/UJJdZUyvfDWMCqllTEcP0nJIhKivvroMpO0WZb26Qd47gKjBZgiF X-Gm-Message-State: AOJu0Yy+pUBF6gkWe0pBhktd0MYg6FIh1nH204dpykmcPTS5IdIi+LQh GXEaSpTOWxUB4x6VnZ3LPU3kLqw41pBH0/qTsfBXgh+kdE9Whn2A X-Google-Smtp-Source: AGHT+IFsGyT80zKlFXeDTsC6mIPMCTO0pmYzrxX6T59rsL1s9bXHizDcqb4V2aVcc6q/GiCAjeS+Gg== X-Received: by 2002:a17:906:cb1:b0:a6f:f7c:5c7a with SMTP id a640c23a62f3a-a6fab7cd635mr172253966b.67.1718831604071; Wed, 19 Jun 2024 14:13:24 -0700 (PDT) Received: from [127.0.1.1] (84-115-213-103.cable.dynamic.surfer.at. [84.115.213.103]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a6f56f41700sm698738166b.152.2024.06.19.14.13.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 19 Jun 2024 14:13:23 -0700 (PDT) From: Javier Carrasco Date: Wed, 19 Jun 2024 23:13:21 +0200 Subject: [PATCH 1/2] Input: ims-pcu - annotate struct ims_pcu_flash_fmt with __counted_by Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240619-ims-pcu-counted_by-v1-1-3ee0ead2e57d@gmail.com> References: <20240619-ims-pcu-counted_by-v1-0-3ee0ead2e57d@gmail.com> In-Reply-To: <20240619-ims-pcu-counted_by-v1-0-3ee0ead2e57d@gmail.com> To: Dmitry Torokhov , Kees Cook , "Gustavo A. R. Silva" Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org, Javier Carrasco X-Mailer: b4 0.14-dev X-Developer-Signature: v=1; a=ed25519-sha256; t=1718831601; l=757; i=javier.carrasco.cruz@gmail.com; s=20240312; h=from:subject:message-id; bh=zvTtbeaAyONgICOPzhezw+GO8rpkhjCZ3SdmJfMy49E=; b=kFuza/zoEoIO74C+BCQ7VtOJbFXGxshUt1ziVKZMi1EvyVlZ0fRwlYgZfwAckwthnOu8lyyAD rFVqANSLdYbA8rnnuKYpezJN9Csxfl3KRkxFlJQMpfC/Bl2ylyYkJrH X-Developer-Key: i=javier.carrasco.cruz@gmail.com; a=ed25519; pk=lzSIvIzMz0JhJrzLXI0HAdPwsNPSSmEn6RbS+PTS9aQ= Use the __counted_by compiler attribute for the data[] flexible array member to improve the results of array bound sanitizers. Signed-off-by: Javier Carrasco Reviewed-by: Kees Cook Reviewed-by: Gustavo A. R. Silva --- drivers/input/misc/ims-pcu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/misc/ims-pcu.c b/drivers/input/misc/ims-pcu.c index 408a586f8c36..91f8ad826238 100644 --- a/drivers/input/misc/ims-pcu.c +++ b/drivers/input/misc/ims-pcu.c @@ -761,7 +761,7 @@ static int ims_pcu_switch_to_bootloader(struct ims_pcu *pcu) struct ims_pcu_flash_fmt { __le32 addr; u8 len; - u8 data[]; + u8 data[] __counted_by(len); }; static unsigned int ims_pcu_count_fw_records(const struct firmware *fw)