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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 0A2F2C43603 for ; Tue, 10 Dec 2019 22:11:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D3C16207FF for ; Tue, 10 Dec 2019 22:11:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576015889; bh=SGz8r9eKX9gBJ68+HikN3ji8vq9hVDcvAiYpnhVEZjQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=aw5OSlmRV+4TYGqi4Y+EdSId6qYp+5i033zUsnugiq/9gbnx1UPJKLsu3w+MwZTOj AO0M2NsVodIHRrXLC6wehVWdSYAvPj4HGsJCa8dEKLU84e4QsOxa6/EzmmqawUur/d 0cLBfz/SAHB2ZN4Xs3WzbNTguQiAAyo9jEFamDUQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728365AbfLJWD7 (ORCPT ); Tue, 10 Dec 2019 17:03:59 -0500 Received: from mail.kernel.org ([198.145.29.99]:34226 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728165AbfLJWDu (ORCPT ); Tue, 10 Dec 2019 17:03:50 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 9E3AF214AF; Tue, 10 Dec 2019 22:03:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576015429; bh=SGz8r9eKX9gBJ68+HikN3ji8vq9hVDcvAiYpnhVEZjQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=yIY4Xr4IKiZFaO8AYc7dyPYIOSM4IYM599z7OCBRJCPGhmXKN4lXsMuJplOpYnHAd PRigRA90Q5r/oqMpdCY6OPkAIrL2RsKz0X0jmvACeU9BGodaj04C1PiPp9FELrLwY9 1nq1iZbtC4KCuUgIUqCng9xbpxlmP1sWQ7VPKmzI= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Benoit Parrot , Tomi Valkeinen , Hans Verkuil , Mauro Carvalho Chehab , Sasha Levin , linux-media@vger.kernel.org Subject: [PATCH AUTOSEL 4.14 040/130] media: ti-vpe: vpe: fix a v4l2-compliance failure about invalid sizeimage Date: Tue, 10 Dec 2019 17:01:31 -0500 Message-Id: <20191210220301.13262-40-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191210220301.13262-1-sashal@kernel.org> References: <20191210220301.13262-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Benoit Parrot [ Upstream commit 0bac73adea4df8d34048b38f6ff24dc3e73e90b6 ] v4l2-compliance fails with this message: fail: v4l2-test-formats.cpp(463): !pfmt.sizeimage fail: v4l2-test-formats.cpp(736): \ Video Capture Multiplanar is valid, \ but TRY_FMT failed to return a format test VIDIOC_TRY_FMT: FAIL This failure is causd by the driver failing to handle out range 'bytesperline' values from user space applications. VPDMA hardware is limited to 64k line stride (16 bytes aligned, so 65520 bytes). So make sure the provided or calculated 'bytesperline' is smaller than the maximum value. Signed-off-by: Benoit Parrot Reviewed-by: Tomi Valkeinen Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/platform/ti-vpe/vpdma.h | 1 + drivers/media/platform/ti-vpe/vpe.c | 4 ++++ 2 files changed, 5 insertions(+) diff --git a/drivers/media/platform/ti-vpe/vpdma.h b/drivers/media/platform/ti-vpe/vpdma.h index 7e611501c2916..f29074c849155 100644 --- a/drivers/media/platform/ti-vpe/vpdma.h +++ b/drivers/media/platform/ti-vpe/vpdma.h @@ -60,6 +60,7 @@ struct vpdma_data_format { * line stride of source and dest * buffers should be 16 byte aligned */ +#define VPDMA_MAX_STRIDE 65520 /* Max line stride 16 byte aligned */ #define VPDMA_DTD_DESC_SIZE 32 /* 8 words */ #define VPDMA_CFD_CTD_DESC_SIZE 16 /* 4 words */ diff --git a/drivers/media/platform/ti-vpe/vpe.c b/drivers/media/platform/ti-vpe/vpe.c index 7af66fe95a542..2e8970c7e22da 100644 --- a/drivers/media/platform/ti-vpe/vpe.c +++ b/drivers/media/platform/ti-vpe/vpe.c @@ -1702,6 +1702,10 @@ static int __vpe_try_fmt(struct vpe_ctx *ctx, struct v4l2_format *f, if (stride > plane_fmt->bytesperline) plane_fmt->bytesperline = stride; + plane_fmt->bytesperline = clamp_t(u32, plane_fmt->bytesperline, + stride, + VPDMA_MAX_STRIDE); + plane_fmt->bytesperline = ALIGN(plane_fmt->bytesperline, VPDMA_STRIDE_ALIGN); -- 2.20.1