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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C6B25C41535 for ; Tue, 5 Apr 2022 13:41:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1390461AbiDENi7 (ORCPT ); Tue, 5 Apr 2022 09:38:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38908 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344457AbiDEJT7 (ORCPT ); Tue, 5 Apr 2022 05:19:59 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B717912778; Tue, 5 Apr 2022 02:08:24 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 2BE3AB81B75; Tue, 5 Apr 2022 09:08:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 776FDC385A3; Tue, 5 Apr 2022 09:08:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649149701; bh=ADEi5SU0fkm1OasEUzfXS5XLxdWFJrLpnS+LEgj9ZRA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Fcx4D34r2CRsYHaeUuJsXjl/qeSsEvK6hBKO/uA9A2TIwSDY2pv/QZ4pTfJICeOKU ciUOoa8U9pnMVKUi6KhwpvSxMH+leTVJChBpcHNy66GpO8O1kMDAQwLAsjcJCxRYj5 sMr2epJVZZtIIqbXYxUk0OllEexwFEYbcbR0Ez18= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Mirela Rabulea , Hans Verkuil , Mauro Carvalho Chehab , Sasha Levin Subject: [PATCH 5.16 0811/1017] media: imx-jpeg: Prevent decoding NV12M jpegs into single-planar buffers Date: Tue, 5 Apr 2022 09:28:44 +0200 Message-Id: <20220405070418.320684033@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220405070354.155796697@linuxfoundation.org> References: <20220405070354.155796697@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Mirela Rabulea [ Upstream commit 417591a766b3c040c346044541ff949c0b2bb7b2 ] If the application queues an NV12M jpeg as output buffer, but then queues a single planar capture buffer, the kernel will crash with "Unable to handle kernel NULL pointer dereference" in mxc_jpeg_addrs, prevent this by finishing the job with error. Signed-off-by: Mirela Rabulea Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/platform/imx-jpeg/mxc-jpeg.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/media/platform/imx-jpeg/mxc-jpeg.c b/drivers/media/platform/imx-jpeg/mxc-jpeg.c index 4ca96cf9def7..b249c1bbfac8 100644 --- a/drivers/media/platform/imx-jpeg/mxc-jpeg.c +++ b/drivers/media/platform/imx-jpeg/mxc-jpeg.c @@ -947,6 +947,12 @@ static void mxc_jpeg_device_run(void *priv) v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, true); jpeg_src_buf = vb2_to_mxc_buf(&src_buf->vb2_buf); + if (q_data_cap->fmt->colplanes != dst_buf->vb2_buf.num_planes) { + dev_err(dev, "Capture format %s has %d planes, but capture buffer has %d planes\n", + q_data_cap->fmt->name, q_data_cap->fmt->colplanes, + dst_buf->vb2_buf.num_planes); + jpeg_src_buf->jpeg_parse_error = true; + } if (jpeg_src_buf->jpeg_parse_error) { jpeg->slot_data[ctx->slot].used = false; v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); -- 2.34.1