From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7B6B523313D for ; Mon, 9 Dec 2024 14:35:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733754922; cv=none; b=ZnznTXER3Myfrc+arigayXW/h3GZYLbiA3gNyTOLF1mT3+hZFM2heTgqpUmYoYPEmye3NJKHWi5mPSa2WZXGzWArRdXrmW13wZbmGFA4HMAkI7evXf0p7Br6YJMYgfjVpSfkfiCDmzEPeDevhtX5VKPcdsqWXfuxSRGxB/hDwbM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733754922; c=relaxed/simple; bh=9STTZG8Ajz7+VWo8MTPg2Jac7j5x5ITAICmgmDc5vG0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=QiUON5NEJTpWHMHsdVOHcHBV2woITHEBIyIilM6ZhwRYEL7SZUQvzYd1T8X9qFbu+C7FaYvdKWdzqn+6ew6Phw3Um7gVurGniHeGn0xTI6+7JyvcC65PlVVmqq8f9bN3EFzv7a/u/PizQmqwgq1Cp+HYFqlEEp5dPgunJ1UoqPg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=XzikjFic; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="XzikjFic" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 79BC2C4CED1; Mon, 9 Dec 2024 14:35:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1733754922; bh=9STTZG8Ajz7+VWo8MTPg2Jac7j5x5ITAICmgmDc5vG0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XzikjFic6QhJDHbA/iBoN5N4BxLujuWXc+LOUafHrqvqATK04q8VZ5t6cfCLBdnEU pUn+G8BGt6FfaJ4aI5fT2JSE2MCfv8pTHudHP6yg6Dv+dA57Y3oweQV0nkqTvx+QgY V718GF7Ld1SZ1PBkx+G16jC5BfpxBHDMRkQ6efsh+62FtjduZWA/jJ1UuYob6myFqP 5W2LpyONO2gHuiTOKRS2MWXjskgr3Pv9ZcfG2f13V5w+jtGJrDZpTDw7KNSdlcdbsB YN8ny2S9abWvxVZQSt0cpIsKSUQgCaJ8pDck6tstnSf1KtdwLQvPo0JvAzg7L/U51Z f4Z30mo5gxB+w== From: Sasha Levin To: stable@vger.kernel.org Cc: jianqi.ren.cn@windriver.com, Sasha Levin Subject: Re: [PATCH 6.1.y] media: mtk-vcodec: potential null pointer deference in SCP Date: Mon, 9 Dec 2024 09:35:20 -0500 Message-ID: <20241209081319-fba532978a5cf17d@stable.kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241209065413.3427435-1-jianqi.ren.cn@windriver.com> References: Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit [ Sasha's backport helper bot ] Hi, The upstream commit SHA1 provided is correct: 53dbe08504442dc7ba4865c09b3bbf5fe849681b WARNING: Author mismatch between patch and upstream commit: Backport author: Commit author: Fullway Wang Status in newer kernel trees: 6.12.y | Present (exact SHA1) 6.6.y | Present (different SHA1: f066882293b5) 6.1.y | Not found Note: The patch differs from the upstream commit: --- 1: 53dbe08504442 ! 1: a7928268320f3 media: mtk-vcodec: potential null pointer deference in SCP @@ Metadata ## Commit message ## media: mtk-vcodec: potential null pointer deference in SCP + [ Upstream commit 53dbe08504442dc7ba4865c09b3bbf5fe849681b ] + The return value of devm_kzalloc() needs to be checked to avoid NULL pointer deference. This is similar to CVE-2022-3113. Link: https://lore.kernel.org/linux-media/PH7PR20MB5925094DAE3FD750C7E39E01BF712@PH7PR20MB5925.namprd20.prod.outlook.com Signed-off-by: Fullway Wang Signed-off-by: Mauro Carvalho Chehab + Signed-off-by: Jianqi Ren - ## drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_scp.c ## -@@ drivers/media/platform/mediatek/vcodec/common/mtk_vcodec_fw_scp.c: struct mtk_vcodec_fw *mtk_vcodec_fw_scp_init(void *priv, enum mtk_vcodec_fw_use + ## drivers/media/platform/mediatek/vcodec/mtk_vcodec_fw_scp.c ## +@@ drivers/media/platform/mediatek/vcodec/mtk_vcodec_fw_scp.c: struct mtk_vcodec_fw *mtk_vcodec_fw_scp_init(struct mtk_vcodec_dev *dev) } - fw = devm_kzalloc(&plat_dev->dev, sizeof(*fw), GFP_KERNEL); + fw = devm_kzalloc(&dev->plat_dev->dev, sizeof(*fw), GFP_KERNEL); + if (!fw) + return ERR_PTR(-ENOMEM); fw->type = SCP; --- Results of testing on various branches: | Branch | Patch Apply | Build Test | |---------------------------|-------------|------------| | stable/linux-6.1.y | Success | Success |