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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 C6C36C433ED for ; Wed, 12 May 2021 11:57:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8F15B61182 for ; Wed, 12 May 2021 11:57:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230246AbhELL6V (ORCPT ); Wed, 12 May 2021 07:58:21 -0400 Received: from lucky1.263xmail.com ([211.157.147.135]:50242 "EHLO lucky1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230224AbhELL6U (ORCPT ); Wed, 12 May 2021 07:58:20 -0400 Received: from localhost (unknown [192.168.167.13]) by lucky1.263xmail.com (Postfix) with ESMTP id 89558AC626; Wed, 12 May 2021 19:56:59 +0800 (CST) X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-ADDR-CHECKED4: 1 X-ANTISPAM-LEVEL: 2 X-ABS-CHECKED: 0 Received: from localhost.localdomain (unknown [124.126.19.250]) by smtp.263.net (postfix) whith ESMTP id P1748T140588825409280S1620820610980711_; Wed, 12 May 2021 19:57:01 +0800 (CST) X-IP-DOMAINF: 1 X-UNIQUE-TAG: <794a1de435a0a63d4553be8fcf03f0c0> X-RL-SENDER: penghaob@uniontech.com X-SENDER: penghaob@uniontech.com X-LOGIN-NAME: penghaob@uniontech.com X-FST-TO: rodrigosiqueiramelo@gmail.com X-RCPT-COUNT: 8 X-SENDER-IP: 124.126.19.250 X-ATTACHMENT-NUM: 0 X-System-Flag: 0 From: Hao Peng To: rodrigosiqueiramelo@gmail.com, melissa.srw@gmail.com, hamohammed.sa@gmail.com, daniel@ffwll.ch, airlied@linux.ie Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Hao Peng Subject: [PATCH] drm:vkms: Add NULL value after free function In function vkms_exit, after kfree(default_config), give specific NULL value to pointer default_config to avoid wild pointer. Date: Wed, 12 May 2021 19:55:54 +0800 Message-Id: <20210512115554.10431-1-penghaob@uniontech.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Hao Peng --- drivers/gpu/drm/vkms/vkms_drv.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/vkms/vkms_drv.c b/drivers/gpu/drm/vkms/vkms_drv.c index 2173b82606f6..6c63201db5d0 100644 --- a/drivers/gpu/drm/vkms/vkms_drv.c +++ b/drivers/gpu/drm/vkms/vkms_drv.c @@ -227,6 +227,7 @@ static void __exit vkms_exit(void) vkms_destroy(default_config); kfree(default_config); + default_config = NULL; } module_init(vkms_init); -- 2.20.1