From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-20.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 10548C433F5 for ; Mon, 20 Sep 2021 16:46:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EF74A6127B for ; Mon, 20 Sep 2021 16:46:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243130AbhITQsF (ORCPT ); Mon, 20 Sep 2021 12:48:05 -0400 Received: from mail.kernel.org ([198.145.29.99]:35916 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232023AbhITQrf (ORCPT ); Mon, 20 Sep 2021 12:47:35 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 059FC6124A; Mon, 20 Sep 2021 16:46:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1632156367; bh=2jJz1KLIvvL3Bgi0Ak3ad2MPjouSKyBs23J1FA16MlU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=o22W7GvpNJ6fA0hCFgE2EdGhlClaau5DS+hkojBIe5Pyzw2XFnvM0KiSHyAfa6MW2 wE66d5qPAtYJHVBDaMMqTYVPK/aRxeUfsP+h5RAylPfJPm7kBj22/+35fAymeYock4 /r/JgA1WjprTyDt0UxpBOqpnyUxzXhXtsMf+ImcI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jouni Malinen , Kalle Valo Subject: [PATCH 4.4 009/133] ath9k: Clear key cache explicitly on disabling hardware Date: Mon, 20 Sep 2021 18:41:27 +0200 Message-Id: <20210920163912.907746005@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210920163912.603434365@linuxfoundation.org> References: <20210920163912.603434365@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jouni Malinen commit 73488cb2fa3bb1ef9f6cf0d757f76958bd4deaca upstream. Now that ath/key.c may not be explicitly clearing keys from the key cache, clear all key cache entries when disabling hardware to make sure no keys are left behind beyond this point. Signed-off-by: Jouni Malinen Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20201214172118.18100-3-jouni@codeaurora.org Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireless/ath/ath9k/main.c | 5 +++++ 1 file changed, 5 insertions(+) --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -890,6 +890,11 @@ static void ath9k_stop(struct ieee80211_ spin_unlock_bh(&sc->sc_pcu_lock); + /* Clear key cache entries explicitly to get rid of any potentially + * remaining keys. + */ + ath9k_cmn_init_crypto(sc->sc_ah); + ath9k_ps_restore(sc); sc->ps_idle = prev_idle;