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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2F654C77B73 for ; Mon, 1 May 2023 03:00:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=IUgHS2utNXJ/9C9Jix45ZA9gev1QCzGfaG7Ae4y0HUo=; b=CrZtlTHLTa4v5S WitZuhMZoU1Q/GU8K8zkCpFlSZqSvHOgwxuc7Fclnp2azKDKYPewp1Vg9ksS/hDyE0vMPOePcTrI7 Lcx+OeFYVfcWe7Vt6EQCtWWDYZGBbprAWLLBmaCaP9eJZ85ppPtyX97DF5SuxRzuqYE8DAMZm9oFw 55UcZQo+6xk+5ixxFaNyBdKXh9CVvQrXrO1DQ6foACFX6MtacW3tppvaKJGXtH4hMwMbv/f2lrYDW q7B9KE/ih3Kr0w1mbJTQX9kuiNnkbE2bAPYEmD7lMVaYmrNDT5sxLIcLMz8U1ijsoTrmTqdSXg+jW KMl50Xr7Y7QJVI3St5pg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1ptJlQ-00F55R-19; Mon, 01 May 2023 02:59:44 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1ptJlO-00F545-15; Mon, 01 May 2023 02:59:43 +0000 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 dfw.source.kernel.org (Postfix) with ESMTPS id E41E561717; Mon, 1 May 2023 02:59:41 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 70184C433EF; Mon, 1 May 2023 02:59:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1682909980; bh=YKojEJiiV1QvwHI5f0ezVGrRBJg+sS7nU5ba/bX9Vb8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=p9AzbP/kx+wSby7ytTnMivAm3jk1V+SGZZXz941qqCeaVX9eCs+7ZYNfAiDa/v+iJ ThW+a+ZicUbSPKwJ5lWDqFIrytV1nZbsaktsHB8dSFAsOOidhwUoYo8RRSXr/xtLCg npqYgTaCz5kS32kTyZe1s5mmErZHrztaoXsIZvPEbt8WlC+L8LZ0xMuBla+UUVx4IV 34NQQAGU7ZG4GRT4dLDIt5vb/JohOqqbgaMhz/4O2oV8j+HFjzysaPpCyPPnR03w43 EHsSUa/0J5X0mqRagA/PpqpgFG5M2UeIeqqLSKmcUZu30dFnq6ls7z/NbryxePF58T hlQ3fAX5fzhPA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Wei Chen , Hans Verkuil , Mauro Carvalho Chehab , Sasha Levin , tiffany.lin@mediatek.com, andrew-ct.chen@mediatek.com, yunfei.dong@mediatek.com, matthias.bgg@gmail.com, linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org Subject: [PATCH AUTOSEL 6.3 42/44] media: mediatek: vcodec: Fix potential array out-of-bounds in decoder queue_setup Date: Sun, 30 Apr 2023 22:56:30 -0400 Message-Id: <20230501025632.3253067-42-sashal@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230501025632.3253067-1-sashal@kernel.org> References: <20230501025632.3253067-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230430_195942_412721_65DF09AA X-CRM114-Status: GOOD ( 13.13 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Wei Chen [ Upstream commit 8fbcf730cb89c3647f3365226fe7014118fa93c7 ] variable *nplanes is provided by user via system call argument. The possible value of q_data->fmt->num_planes is 1-3, while the value of *nplanes can be 1-8. The array access by index i can cause array out-of-bounds. Fix this bug by checking *nplanes against the array size. Signed-off-by: Wei Chen Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c index 641f533c417fd..173407664cf42 100644 --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_dec.c @@ -753,6 +753,13 @@ int vb2ops_vdec_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, } if (*nplanes) { + if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) { + if (*nplanes != q_data->fmt->num_planes) + return -EINVAL; + } else { + if (*nplanes != 1) + return -EINVAL; + } for (i = 0; i < *nplanes; i++) { if (sizes[i] < q_data->sizeimage[i]) return -EINVAL; -- 2.39.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel