From patchwork Thu Feb 24 21:16:46 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Gustavo A. R. Silva" X-Patchwork-Id: 12759239 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 29637C433FE for ; Thu, 24 Feb 2022 21:08:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229542AbiBXVJX (ORCPT ); Thu, 24 Feb 2022 16:09:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37362 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234601AbiBXVJV (ORCPT ); Thu, 24 Feb 2022 16:09:21 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 980B61DED49; Thu, 24 Feb 2022 13:08:50 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 41CD5B829B8; Thu, 24 Feb 2022 21:08:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 226CCC340E9; Thu, 24 Feb 2022 21:08:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1645736928; bh=Vl3ib7xbq47C3BnaPMshuk8tRt16r+WBcMwB0/gWLIo=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=Spsygd9HrvSsJS2wTixxcoZi9fmFnKZ/oQiYY8LJerITprwMV9xeRUNm6WhzcjH1o PaubA55gEG1Q55UDo6dJganqmVjzy4Bmfl7N9rPtxylEeyKzF61CBu6kzzcVRTlYiB pcOhdONjo4a+kXHJRlnzHmINHirTg+FQx2czebFOAfTKWV1nRUbQKhgFM18LzYe2Hj FbvjHrPf2zJ495rHKUlWzap1VXVrRDwZmXwlnw/vRbTx5YaDFlawET6GPxRW8K0/8m qYUyuS2x0QIZbQ25OjOlAMoaMA8idCyqOSq20CMytZEu+akI2xWgmJAkuhgy3BKwwY nhf28eCpvZA2A== Date: Thu, 24 Feb 2022 15:16:46 -0600 From: "Gustavo A. R. Silva" To: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, Jeff Johnson Cc: Kalle Valo , "David S. Miller" , Jakub Kicinski , netdev@vger.kernel.org, linux-hardening@vger.kernel.org, "Gustavo A. R. Silva" Subject: [PATCH v2 3/6][next] ath6kl: wmi: Replace one-element array with flexible-array member in struct wmi_channel_list_reply Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Replace one-element array with flexible-array member in struct wmi_channel_list_reply. This issue was found with the help of Coccinelle and audited and fixed, manually. Link: https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays Link: https://github.com/KSPP/linux/issues/79 Reviewed-by: Jeff Johnson Signed-off-by: Gustavo A. R. Silva --- Changes in v2: - Revert changes in if-statement logic: if (len < sizeof(struct wmi_channel_list_reply)) Link: https://lore.kernel.org/linux-hardening/3abb0846-a26f-3d76-8936-cd23cf4387f1@quicinc.com/ - Update changelog text. - Add Reviewed-by: Jeff Johnson tag. drivers/net/wireless/ath/ath6kl/wmi.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath6kl/wmi.h b/drivers/net/wireless/ath/ath6kl/wmi.h index 9e168752bec2..432e4f428a4a 100644 --- a/drivers/net/wireless/ath/ath6kl/wmi.h +++ b/drivers/net/wireless/ath/ath6kl/wmi.h @@ -1373,7 +1373,7 @@ struct wmi_channel_list_reply { u8 num_ch; /* channel in Mhz */ - __le16 ch_list[1]; + __le16 ch_list[]; } __packed; /* List of Events (target to host) */