From patchwork Sat Dec 21 00:40:46 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Colin King X-Patchwork-Id: 11306545 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A6698109A for ; Sat, 21 Dec 2019 00:40:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 899BB20866 for ; Sat, 21 Dec 2019 00:40:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726603AbfLUAk4 (ORCPT ); Fri, 20 Dec 2019 19:40:56 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:59925 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726346AbfLUAkz (ORCPT ); Fri, 20 Dec 2019 19:40:55 -0500 Received: from 1.general.cking.uk.vpn ([10.172.193.212] helo=localhost) by youngberry.canonical.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1iiSp4-0004SC-JQ; Sat, 21 Dec 2019 00:40:46 +0000 From: Colin King To: Kalle Valo , "David S . Miller" , Anilkumar Kolli , Manikanta Pubbisetty , Sven Eckelmann , Pradeep Kumar Chitrapu , ath11k@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] ath11k: ensure ts.flags is initialized before bit-wise or'ing in values Date: Sat, 21 Dec 2019 00:40:46 +0000 Message-Id: <20191221004046.15859-1-colin.king@canonical.com> X-Mailer: git-send-email 2.24.0 MIME-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Colin Ian King Currently the structure ts is not inititalized and ts.flags contains garbage values from the stack. This is being passed into function ath11k_dp_tx_status_parse that bit-wise or'ing in settings into the ts.flags field. To avoid flags (and other fields) from containing garbage, initialize the structure to zero before use. Addresses-Coverity: ("Uninitialized scalar variable)" Fixes: d5c65159f289 ("ath11k: driver for Qualcomm IEEE 802.11ax devices") Signed-off-by: Colin Ian King --- drivers/net/wireless/ath/ath11k/dp_tx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath11k/dp_tx.c b/drivers/net/wireless/ath/ath11k/dp_tx.c index 918305dda106..04ad1a20e459 100644 --- a/drivers/net/wireless/ath/ath11k/dp_tx.c +++ b/drivers/net/wireless/ath/ath11k/dp_tx.c @@ -461,7 +461,7 @@ void ath11k_dp_tx_completion_handler(struct ath11k_base *ab, int ring_id) int hal_ring_id = dp->tx_ring[ring_id].tcl_comp_ring.ring_id; struct hal_srng *status_ring = &ab->hal.srng_list[hal_ring_id]; struct sk_buff *msdu; - struct hal_tx_status ts; + struct hal_tx_status ts = { 0 }; struct dp_tx_ring *tx_ring = &dp->tx_ring[ring_id]; u32 *desc; u32 msdu_id;