From patchwork Thu Feb 24 21:15:57 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: 12759236 X-Patchwork-Delegate: kvalo@adurom.com 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 8C775C433EF for ; Thu, 24 Feb 2022 21:08:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234553AbiBXVId (ORCPT ); Thu, 24 Feb 2022 16:08:33 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33360 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229542AbiBXVIa (ORCPT ); Thu, 24 Feb 2022 16:08:30 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B791E17E34F; Thu, 24 Feb 2022 13:07:59 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 5220F61977; Thu, 24 Feb 2022 21:07:59 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id E6103C340E9; Thu, 24 Feb 2022 21:07:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1645736878; bh=a4XhS+Pis5tThTTp0Tl8ZRPRZOit2eEN0Ha7YDcM7So=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=JxdgEIrYXWWucg2uqo7stZ06TKHXbbX/8LjmA4yjpk/eBJCzNr4Eg5dkTibnFI4IE Xlq9peNTRhop9+WYvuaI2BXsDGcvYtSFcCppOw5vvcFQbYnWxAAKunjlfZHk9CkV71 VMUlBcojt1DSzj02iwOeyUFaU0CUp5AZ9EEOKYYj3HVWAc+ffEUE30vfs2IDLE/37/ eI0uYVw1Lm6rzDtGawYy/I0Q0IxrcPNr7f2CC652HqzqDWXOaCURYWE8/VIFsFDAIy k0ocmmlHrO+y793OFt9NUySOJDGBJxPx59zgRpCk1GbW5PRfRuGJxSsg3rgXVWWjfz Hn2j1J/HE3ccg== Date: Thu, 24 Feb 2022 15:15:57 -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 1/6][next] ath6kl: wmi: Replace one-element array with flexible-array member in struct wmi_begin_scan_cmd Message-ID: <1ef801ea24475501fa0f296cb5435a440135206e.1645736204.git.gustavoars@kernel.org> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Replace one-element array with flexible-array member in struct wmi_begin_scan_cmd. Also, make use of the struct_size() helper. 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: - Add Reviewed-by: Jeff Johnson tag. drivers/net/wireless/ath/ath6kl/wmi.c | 9 ++------- drivers/net/wireless/ath/ath6kl/wmi.h | 2 +- 2 files changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/net/wireless/ath/ath6kl/wmi.c b/drivers/net/wireless/ath/ath6kl/wmi.c index bd1ef6334997..e1c950014f3e 100644 --- a/drivers/net/wireless/ath/ath6kl/wmi.c +++ b/drivers/net/wireless/ath/ath6kl/wmi.c @@ -2008,7 +2008,7 @@ int ath6kl_wmi_beginscan_cmd(struct wmi *wmi, u8 if_idx, struct ieee80211_supported_band *sband; struct sk_buff *skb; struct wmi_begin_scan_cmd *sc; - s8 size, *supp_rates; + s8 *supp_rates; int i, band, ret; struct ath6kl *ar = wmi->parent_dev; int num_rates; @@ -2023,18 +2023,13 @@ int ath6kl_wmi_beginscan_cmd(struct wmi *wmi, u8 if_idx, num_chan, ch_list); } - size = sizeof(struct wmi_begin_scan_cmd); - if ((scan_type != WMI_LONG_SCAN) && (scan_type != WMI_SHORT_SCAN)) return -EINVAL; if (num_chan > WMI_MAX_CHANNELS) return -EINVAL; - if (num_chan) - size += sizeof(u16) * (num_chan - 1); - - skb = ath6kl_wmi_get_new_buf(size); + skb = ath6kl_wmi_get_new_buf(struct_size(sc, ch_list, num_chan)); if (!skb) return -ENOMEM; diff --git a/drivers/net/wireless/ath/ath6kl/wmi.h b/drivers/net/wireless/ath/ath6kl/wmi.h index 784940ba4c90..322539ed9c12 100644 --- a/drivers/net/wireless/ath/ath6kl/wmi.h +++ b/drivers/net/wireless/ath/ath6kl/wmi.h @@ -863,7 +863,7 @@ struct wmi_begin_scan_cmd { u8 num_ch; /* channels in Mhz */ - __le16 ch_list[1]; + __le16 ch_list[]; } __packed; /* wmi_start_scan_cmd is to be deprecated. Use From patchwork Thu Feb 24 21:16:16 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: 12759237 X-Patchwork-Delegate: kvalo@adurom.com 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 22650C4332F for ; Thu, 24 Feb 2022 21:08:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234574AbiBXVIx (ORCPT ); Thu, 24 Feb 2022 16:08:53 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34992 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229542AbiBXVIv (ORCPT ); Thu, 24 Feb 2022 16:08:51 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DE38718FACE; Thu, 24 Feb 2022 13:08:20 -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 99F15B829BA; Thu, 24 Feb 2022 21:08:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 70918C340E9; Thu, 24 Feb 2022 21:08:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1645736898; bh=GgSxQ7JcNCf7iXwHIZ1kVpdtf4ZgVxohv71Xw6IqHns=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=IejOzqjiR5HQke6tO+7QmVutkvmvKXRNIZk+kSQ80ASJxP9o2jxzeu60GvJVtB75f kNZ56dombH4QOB3ZzCraSNKn4zwNuAlMdhojH4Tv8AJDvDlgsidZmeCF/DHetnP7yf 2FBl2bu2EbHe2HVRPoAtTzHo/Aar7HR4v89HyN8iBSba6HpYWwRPHqsgduv3e/TWpV 30WWT1z9GiALFLb64H4gucWKjXxd3ue7CCkm9cKELJgRNnsuindPvuVLEgLEPffECM 0FKOjTN2s5q7koIj7BHm1CljI5y5SZkARJMRdJWlNNxau+FzWkrXXWk2RZv/Pz2xy1 Jb78G42uj2Rng== Date: Thu, 24 Feb 2022 15:16:16 -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 2/6][next] ath6kl: wmi: Replace one-element array with flexible-array member in struct wmi_start_scan_cmd Message-ID: <8b33c6d86a6bd40b5688cf118b4b35850db8d8c7.1645736204.git.gustavoars@kernel.org> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Replace one-element array with flexible-array member in struct wmi_start_scan_cmd. Also, make use of the struct_size() helper. 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 Signed-off-by: Gustavo A. R. Silva Reviewed-by: Jeff Johnson --- Changes in v2: - None. drivers/net/wireless/ath/ath6kl/wmi.c | 8 +------- drivers/net/wireless/ath/ath6kl/wmi.h | 2 +- 2 files changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/net/wireless/ath/ath6kl/wmi.c b/drivers/net/wireless/ath/ath6kl/wmi.c index e1c950014f3e..bdfc057c5a82 100644 --- a/drivers/net/wireless/ath/ath6kl/wmi.c +++ b/drivers/net/wireless/ath/ath6kl/wmi.c @@ -1959,21 +1959,15 @@ static int ath6kl_wmi_startscan_cmd(struct wmi *wmi, u8 if_idx, { struct sk_buff *skb; struct wmi_start_scan_cmd *sc; - s8 size; int i, ret; - size = sizeof(struct wmi_start_scan_cmd); - if ((scan_type != WMI_LONG_SCAN) && (scan_type != WMI_SHORT_SCAN)) return -EINVAL; if (num_chan > WMI_MAX_CHANNELS) return -EINVAL; - if (num_chan) - size += sizeof(u16) * (num_chan - 1); - - skb = ath6kl_wmi_get_new_buf(size); + skb = ath6kl_wmi_get_new_buf(struct_size(sc, ch_list, num_chan)); if (!skb) return -ENOMEM; diff --git a/drivers/net/wireless/ath/ath6kl/wmi.h b/drivers/net/wireless/ath/ath6kl/wmi.h index 322539ed9c12..9e168752bec2 100644 --- a/drivers/net/wireless/ath/ath6kl/wmi.h +++ b/drivers/net/wireless/ath/ath6kl/wmi.h @@ -889,7 +889,7 @@ struct wmi_start_scan_cmd { u8 num_ch; /* channels in Mhz */ - __le16 ch_list[1]; + __le16 ch_list[]; } __packed; /* 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: 12759238 X-Patchwork-Delegate: kvalo@adurom.com 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 1824CC433EF for ; Thu, 24 Feb 2022 21:08:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234602AbiBXVJX (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: linux-wireless@vger.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) */ From patchwork Thu Feb 24 21:17:15 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: 12759247 X-Patchwork-Delegate: kvalo@adurom.com 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 BACA1C433F5 for ; Thu, 24 Feb 2022 21:09:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234612AbiBXVJv (ORCPT ); Thu, 24 Feb 2022 16:09:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38416 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230496AbiBXVJt (ORCPT ); Thu, 24 Feb 2022 16:09:49 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 50C4228ADB1; Thu, 24 Feb 2022 13:09:19 -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 F0AA0B824F5; Thu, 24 Feb 2022 21:09:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C40EEC340E9; Thu, 24 Feb 2022 21:09:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1645736956; bh=cZBJxU1epNW3z8QizvNd22wtWv1wIJN5kVmUoG10Rj0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=YSMzWLZZruovBLcZtvzebIuy3tnllYaXluyE1kZdc/lemw4ts6GeQ+iYqukkB7TuM OUvygpcL60eVYnzOgKsDJ/SWBW2z8KXvH2nWLSMRi9fBIBufnF8lNSk493eDKioues gqoQuGdk+X8lwimOu3obQCZhdSlH4uPMZp+fE32pjIH27vlmDidqv4qWRNVQO2ATVB vG6ajtxMgY8lvO9V7cLjAeF26WT/p7aO2XlWunNNe0a9Z5DrX/zSZthFkKP1Je07F6 0ItKxloHzRnRMDXniOz3i1RYCz7wj+Tv5UOUEzGFu2mHv3ub3RRP0pD+rc53KehyIr b2y5UsvTPq9og== Date: Thu, 24 Feb 2022 15:17:15 -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 4/6][next] ath6kl: wmi: Replace one-element array with flexible-array member in struct wmi_connect_event Message-ID: <290a0cb7bddd813a6a96a59853880e66917aa03d.1645736204.git.gustavoars@kernel.org> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Replace one-element array with flexible-array member in struct wmi_connect_event. 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_connect_event)) Link: https://lore.kernel.org/linux-hardening/6106494b-a1b3-6b57-8b44-b9528127533b@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 432e4f428a4a..6b064e669d87 100644 --- a/drivers/net/wireless/ath/ath6kl/wmi.h +++ b/drivers/net/wireless/ath/ath6kl/wmi.h @@ -1545,7 +1545,7 @@ struct wmi_connect_event { u8 beacon_ie_len; u8 assoc_req_len; u8 assoc_resp_len; - u8 assoc_info[1]; + u8 assoc_info[]; } __packed; /* Disconnect Event */ From patchwork Thu Feb 24 21:17:32 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: 12759248 X-Patchwork-Delegate: kvalo@adurom.com 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 A6A43C433FE for ; Thu, 24 Feb 2022 21:09:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234620AbiBXVKH (ORCPT ); Thu, 24 Feb 2022 16:10:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38818 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231749AbiBXVKG (ORCPT ); Thu, 24 Feb 2022 16:10:06 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2CCDB18FAE0; Thu, 24 Feb 2022 13:09:36 -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 CEC6BB824F5; Thu, 24 Feb 2022 21:09:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A1537C340E9; Thu, 24 Feb 2022 21:09:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1645736973; bh=DcAufs9Hrmo8JESsKyMlW7GHd+f4ZhKBuP43hQIXIFU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=B+BhV6pvi/ih5l34RdQQ+65B4ws/9rDkE6x4Bpf5tr7381ZEopE+yMRmHwVn9N4XR n5VyVGyCIXX0sJCtXZI7QD5MUwbW3RwK/zBdyAn6iqRgNX9+CALlk2gZkninIIZfaO C4wYnsm7I4XZ7JvdtmD/yikkC9ioOxIX/UQQNtzdYDk07cJ876LOaFK3+32oM3a51g pTTxbXmaCVlJc8YBLRIrcQkWkIqp42tYTv9aowU1DTJ+UoqExz1GUscSwb8nyMl3fU RDDvspL0Lb94pvdqopi/+2k2Pj/12jnsO4dNSEeOzuCBupVKP7mcHDzSY9UjAr/1tQ P9/xgrzPyqrZg== Date: Thu, 24 Feb 2022 15:17:32 -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 5/6][next] ath6kl: wmi: Replace one-element array with flexible-array member in struct wmi_disconnect_event Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Replace one-element array with flexible-array member in struct wmi_disconnect_event. 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_disconnect_event)) Link: https://lore.kernel.org/linux-hardening/03cee2a7-1455-b788-e1f0-5fb48db3478c@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 6b064e669d87..6a7fc07cd9aa 100644 --- a/drivers/net/wireless/ath/ath6kl/wmi.h +++ b/drivers/net/wireless/ath/ath6kl/wmi.h @@ -1596,7 +1596,7 @@ struct wmi_disconnect_event { u8 disconn_reason; u8 assoc_resp_len; - u8 assoc_info[1]; + u8 assoc_info[]; } __packed; /* From patchwork Thu Feb 24 21:17:51 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: 12759249 X-Patchwork-Delegate: kvalo@adurom.com 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 E34C2C433FE for ; Thu, 24 Feb 2022 21:10:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234658AbiBXVKi (ORCPT ); Thu, 24 Feb 2022 16:10:38 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39016 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234634AbiBXVK3 (ORCPT ); Thu, 24 Feb 2022 16:10:29 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B53B428D396; Thu, 24 Feb 2022 13:09:55 -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 74E9BB829B3; Thu, 24 Feb 2022 21:09:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5B672C340E9; Thu, 24 Feb 2022 21:09:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1645736993; bh=6IApdu4M+sjJDandvKx6K/9PvnrmBluI9K7FQQLLGW0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=j9KEW7lCO//9VFNx8CNNClk840VX7fW2bvpH3lUk0LAKuLf5OID86bAkMP5HAD1at wVJbn5CRNz86xwmSIjEcFCGop1vz42TxX+0DbhvQkDGQ026GS4V9WCDvno61uWJFyi lMywvmQbxrnhMA7Uzqr4OiW0OE6SA4NRArb4v3ktFPE8/GD6MnKPSS/y4Sa+2pLFZx yYEAT2+r9F/FTLRyFKzmKBO2WlnEc7Dvv7uhypvH3S66DvD0WGfdvLvmjeJ+t9CA38 0mkgANMPlYEJr5paRSTbmb9tHUgUxFVazt50P8rq+nEc1RRyRuXXGeY9XLZ2P3mfME dBjl+xQLeaDFg== Date: Thu, 24 Feb 2022 15:17:51 -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 6/6][next] ath6kl: wmi: Replace one-element array with flexible-array member in struct wmi_aplist_event Message-ID: <1b7889828f23763c034c1558cbab9c8e2066053e.1645736204.git.gustavoars@kernel.org> References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Replace one-element array with flexible-array member in struct wmi_aplist_event. Also, make use of the struct_size() helper and remove unneeded variable ap_info_entry_size. 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_aplist_event)) Link: https://lore.kernel.org/linux-hardening/3f408c80-cabf-5ba2-2014-2eb0550b73f9@quicinc.com/ - Update changelog text. - Add Reviewed-by: Jeff Johnson tag. drivers/net/wireless/ath/ath6kl/wmi.c | 5 +---- drivers/net/wireless/ath/ath6kl/wmi.h | 2 +- 2 files changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/ath/ath6kl/wmi.c b/drivers/net/wireless/ath/ath6kl/wmi.c index bdfc057c5a82..3787b9fb0075 100644 --- a/drivers/net/wireless/ath/ath6kl/wmi.c +++ b/drivers/net/wireless/ath/ath6kl/wmi.c @@ -1750,7 +1750,6 @@ static int ath6kl_wmi_snr_threshold_event_rx(struct wmi *wmi, u8 *datap, static int ath6kl_wmi_aplist_event_rx(struct wmi *wmi, u8 *datap, int len) { - u16 ap_info_entry_size; struct wmi_aplist_event *ev = (struct wmi_aplist_event *) datap; struct wmi_ap_info_v1 *ap_info_v1; u8 index; @@ -1759,14 +1758,12 @@ static int ath6kl_wmi_aplist_event_rx(struct wmi *wmi, u8 *datap, int len) ev->ap_list_ver != APLIST_VER1) return -EINVAL; - ap_info_entry_size = sizeof(struct wmi_ap_info_v1); ap_info_v1 = (struct wmi_ap_info_v1 *) ev->ap_list; ath6kl_dbg(ATH6KL_DBG_WMI, "number of APs in aplist event: %d\n", ev->num_ap); - if (len < (int) (sizeof(struct wmi_aplist_event) + - (ev->num_ap - 1) * ap_info_entry_size)) + if (len < struct_size(ev, ap_list, ev->num_ap)) return -EINVAL; /* AP list version 1 contents */ diff --git a/drivers/net/wireless/ath/ath6kl/wmi.h b/drivers/net/wireless/ath/ath6kl/wmi.h index 6a7fc07cd9aa..a9732660192a 100644 --- a/drivers/net/wireless/ath/ath6kl/wmi.h +++ b/drivers/net/wireless/ath/ath6kl/wmi.h @@ -1957,7 +1957,7 @@ union wmi_ap_info { struct wmi_aplist_event { u8 ap_list_ver; u8 num_ap; - union wmi_ap_info ap_list[1]; + union wmi_ap_info ap_list[]; } __packed; /* Developer Commands */