From patchwork Mon Mar 1 16:07:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 389463 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=-18.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 B55ABC43381 for ; Mon, 1 Mar 2021 19:16:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8A43F64E05 for ; Mon, 1 Mar 2021 19:16:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240989AbhCATQQ (ORCPT ); Mon, 1 Mar 2021 14:16:16 -0500 Received: from mail.kernel.org ([198.145.29.99]:38012 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239556AbhCATKS (ORCPT ); Mon, 1 Mar 2021 14:10:18 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id D87F365198; Mon, 1 Mar 2021 17:11:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1614618680; bh=Xdp7RkbAmR5eSRDTFJg/JPFqPfFBtL/+DLixpAY9Mpg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MDdJ5UTBm/BSzpuZv7CTPI6acKvr5D7erU2v+8viXa5noKMSZNiYEAwxl5sfLHFNJ qCa5lAPGbFbnFOVZW0MVTmRBh8SeT8xPw0Xa7HbnrZa14JG3CbYKlrItPv8iAwegZc 9sFz7QSqpjYiL7ywyI0mBa0+V/e/P3UuqGVnByJo= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Tomi Valkeinen , Hans Verkuil , Mauro Carvalho Chehab , Sasha Levin Subject: [PATCH 5.10 178/663] media: ti-vpe: cal: fix write to unallocated memory Date: Mon, 1 Mar 2021 17:07:06 +0100 Message-Id: <20210301161150.593841931@linuxfoundation.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210301161141.760350206@linuxfoundation.org> References: <20210301161141.760350206@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Tomi Valkeinen [ Upstream commit 5a402af5e19f215689e8bf3cc244c21d94eba3c4 ] The asd allocated with v4l2_async_notifier_add_fwnode_subdev() must be of size cal_v4l2_async_subdev, otherwise access to cal_v4l2_async_subdev->phy will go to unallocated memory. Fixes: 8fcb7576ad19 ("media: ti-vpe: cal: Allow multiple contexts per subdev notifier") Signed-off-by: Tomi Valkeinen Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/platform/ti-vpe/cal.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/ti-vpe/cal.c b/drivers/media/platform/ti-vpe/cal.c index 59a0266b1f399..2eef245c31a17 100644 --- a/drivers/media/platform/ti-vpe/cal.c +++ b/drivers/media/platform/ti-vpe/cal.c @@ -406,7 +406,7 @@ static irqreturn_t cal_irq(int irq_cal, void *data) */ struct cal_v4l2_async_subdev { - struct v4l2_async_subdev asd; + struct v4l2_async_subdev asd; /* Must be first */ struct cal_camerarx *phy; }; @@ -472,7 +472,7 @@ static int cal_async_notifier_register(struct cal_dev *cal) fwnode = of_fwnode_handle(phy->sensor_node); asd = v4l2_async_notifier_add_fwnode_subdev(&cal->notifier, fwnode, - sizeof(*asd)); + sizeof(*casd)); if (IS_ERR(asd)) { phy_err(phy, "Failed to add subdev to notifier\n"); ret = PTR_ERR(asd);