From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:51210 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754415AbbLGMVh (ORCPT ); Mon, 7 Dec 2015 07:21:37 -0500 Subject: Patch "mwifiex: fix NULL pointer dereference during hidden SSID scan" has been added to the 4.3-stable tree To: aniketn@marvell.com, akarwar@marvell.com, gregkh@linuxfoundation.org, kvalo@codeaurora.org Cc: , From: Date: Mon, 07 Dec 2015 00:31:23 -0800 Message-ID: <144947708335229@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled mwifiex: fix NULL pointer dereference during hidden SSID scan to the 4.3-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: mwifiex-fix-null-pointer-dereference-during-hidden-ssid-scan.patch and it can be found in the queue-4.3 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 17e524b1b60f4390d24a51d9524d1648cf5d1447 Mon Sep 17 00:00:00 2001 From: Aniket Nagarnaik Date: Fri, 18 Sep 2015 06:32:09 -0700 Subject: mwifiex: fix NULL pointer dereference during hidden SSID scan From: Aniket Nagarnaik commit 17e524b1b60f4390d24a51d9524d1648cf5d1447 upstream. This NULL pointer dereference is observed during suspend resume stress test. All pending commands are cancelled when system goes into suspend state. There a corner case in which host may receive response for last scan command after this and try to trigger extra active scan for hidden SSIDs. The issue is fixed by adding a NULL check to skip that extra scan. Fixes: 2375fa2b36feaf34 (mwifiex: fix unable to connect hidden SSID..) Signed-off-by: Aniket Nagarnaik Signed-off-by: Amitkumar Karwar Signed-off-by: Kalle Valo Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireless/mwifiex/scan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/wireless/mwifiex/scan.c +++ b/drivers/net/wireless/mwifiex/scan.c @@ -1889,7 +1889,7 @@ mwifiex_active_scan_req_for_passive_chan u8 id = 0; struct mwifiex_user_scan_cfg *user_scan_cfg; - if (adapter->active_scan_triggered) { + if (adapter->active_scan_triggered || !priv->scan_request) { adapter->active_scan_triggered = false; return 0; } Patches currently in stable-queue which might be from aniketn@marvell.com are queue-4.3/mwifiex-fix-null-pointer-dereference-during-hidden-ssid-scan.patch