Received: by 2002:a05:6a10:206:0:0:0:0 with SMTP id 6csp4397964pxj; Wed, 12 May 2021 04:58:14 -0700 (PDT) X-Google-Smtp-Source: ABdhPJycbuiwsl31R2Y53NFwrd1AoZ0L8ikR0rRj4/9x0ZaXyAKBs+i62e8j6FcXM4N7UZnqrND4 X-Received: by 2002:a05:6e02:1291:: with SMTP id y17mr30162882ilq.112.1620820694335; Wed, 12 May 2021 04:58:14 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1620820694; cv=none; d=google.com; s=arc-20160816; b=OTw0CJGUxYNGvZ2Gnp0pSY8Qs3BzrcLAhn2n8ys8IZL/nwviD0WS3nLhJNYFGEcJ5j IIHRlm4NVAs1FGOgxEFVZbrm5BodSXPDGX7mF0eINz0GYNK62GvEE+ebbCx0UiINPKY1 6DvQs4jy4CnbxaNPHhh6UXRK+SIjiIwHwL2Q1j6xiJbnTXqsZvVjAYfkWUtffmsO5Rr3 Ghj52BruS5hvjHrWiXMrZRWY9SlbOGqofnyVNOJMHbvh/oHbIY24wjIBvBvkFk43ves1 6phVJYK2tyx1ss8cTCNYuo+KmixCjwVo2Cp6AS3U+t8J7vSkOC7wfMHVTB3ojjWFtUJJ RnFw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from; bh=WkhwmyYVbYkRWRrG4RZ67m002GpYQi+R90NXglQBaS0=; b=Rg9uzrz2lnfqls8M+0Mo8btVxcFBKRE7JAK2MWKxaMAsUWhflWMHrIVg/cYnpIja1e saSsg91nIBTtk02QFhJCkiO8vvHLtEb5mMkmfrwcjlAxEtxEu+svogdqM0LBfmW5x7bl Noa5bXLPnyLmFQV6bRqZmmA2q6AELY8+vUqSf1PmSkVxrSTHXLcKUzaUUTOVsqJboL/S y7XN0yp9I3Eeci5xwgW4xhDehd6Inr0/0765FSeBTA4r8MLpIikkORrNwEDYvtMMS3m4 SIFp5eGBK5HQXyfmt0qulUxrFS03SKdQKfpKcX3ie9s5BSut0LnRkAi+3c9z4mkB1r31 IcOA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id f4si24154128ilq.1.2021.05.12.04.58.00; Wed, 12 May 2021 04:58:14 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230218AbhELL6V (ORCPT + 99 others); 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