From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754867AbbAZPjf (ORCPT ); Mon, 26 Jan 2015 10:39:35 -0500 Received: from mail-wi0-f174.google.com ([209.85.212.174]:41374 "EHLO mail-wi0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752698AbbAZPjd (ORCPT ); Mon, 26 Jan 2015 10:39:33 -0500 From: Kumar Amit Mehta To: gregkh@linuxfoundation.org Cc: navin.patidar@gmail.com, Larry.Finger@lwfinger.net, dan.carpenter@oracle.com, tapaswenipathak@gmail.com, abelmoyo.ab@gmail.com, devel@driverdev.osuosl.org, kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] staging: rtl8188eu: core: rtw_wlan_util.c: Fix for NULL dereference Date: Mon, 26 Jan 2015 16:39:14 +0100 Message-Id: <1422286754-3039-1-git-send-email-gmate.amit@gmail.com> X-Mailer: git-send-email 2.1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In rtw_check_bcn_info(), check the return value of kzalloc() before dereferencing it, to avoid NULL pointer dereference. Signed-off-by: Kumar Amit Mehta --- drivers/staging/rtl8188eu/core/rtw_wlan_util.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c index 3e9b6e9..a3ffc69 100644 --- a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c +++ b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c @@ -931,6 +931,8 @@ int rtw_check_bcn_info(struct adapter *Adapter, u8 *pframe, u32 packet_len) } bssid = kzalloc(sizeof(struct wlan_bssid_ex), GFP_ATOMIC); + if (!bssid) + return _FAIL; subtype = GetFrameSubType(pframe) >> 4; -- 2.1.0