From patchwork Thu Mar 10 12:28:42 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Szyprowski X-Patchwork-Id: 624441 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p2ACTR7E003623 for ; Thu, 10 Mar 2011 12:29:28 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752801Ab1CJM30 (ORCPT ); Thu, 10 Mar 2011 07:29:26 -0500 Received: from mailout4.w1.samsung.com ([210.118.77.14]:37666 "EHLO mailout4.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752759Ab1CJM3W (ORCPT ); Thu, 10 Mar 2011 07:29:22 -0500 MIME-version: 1.0 Content-transfer-encoding: 7BIT Content-type: TEXT/PLAIN Received: from eu_spt1 ([210.118.77.14]) by mailout4.w1.samsung.com (Sun Java(tm) System Messaging Server 6.3-8.04 (built Jul 29 2009; 32bit)) with ESMTP id <0LHU008CWDCVKP80@mailout4.w1.samsung.com> for linux-media@vger.kernel.org; Thu, 10 Mar 2011 12:29:19 +0000 (GMT) Received: from linux.samsung.com ([106.116.38.10]) by spt1.w1.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTPA id <0LHU00COIDCUQZ@spt1.w1.samsung.com> for linux-media@vger.kernel.org; Thu, 10 Mar 2011 12:29:18 +0000 (GMT) Received: from localhost.localdomain (smtp.w1.samsung.com [106.116.38.10]) by linux.samsung.com (Postfix) with ESMTP id 1735C27007A; Thu, 10 Mar 2011 13:30:15 +0100 (CET) Date: Thu, 10 Mar 2011 13:28:42 +0100 From: Marek Szyprowski Subject: [PATCH 3/3] v4l2: vb2-dma-sg: fix potential security hole In-reply-to: <1299760122-29493-1-git-send-email-m.szyprowski@samsung.com> To: linux-media@vger.kernel.org Cc: m.szyprowski@samsung.com, kyungmin.park@samsung.com, andrzej.p@samsung.com, pawel@osciak.com Message-id: <1299760122-29493-4-git-send-email-m.szyprowski@samsung.com> X-Mailer: git-send-email 1.7.2.3 References: <1299760122-29493-1-git-send-email-m.szyprowski@samsung.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Thu, 10 Mar 2011 12:29:28 +0000 (UTC) diff --git a/drivers/media/video/videobuf2-dma-sg.c b/drivers/media/video/videobuf2-dma-sg.c index d5311ff..b2d9485 100644 --- a/drivers/media/video/videobuf2-dma-sg.c +++ b/drivers/media/video/videobuf2-dma-sg.c @@ -62,7 +62,7 @@ static void *vb2_dma_sg_alloc(void *alloc_ctx, unsigned long size) goto fail_pages_array_alloc; for (i = 0; i < buf->sg_desc.num_pages; ++i) { - buf->pages[i] = alloc_page(GFP_KERNEL); + buf->pages[i] = alloc_page(GFP_KERNEL | __GFP_ZERO); if (NULL == buf->pages[i]) goto fail_pages_alloc; sg_set_page(&buf->sg_desc.sglist[i],