Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 BE00B47CC9E; Thu, 20 Aug 2026 16:28:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787243282; cv=none; b=kF2Av4YKn9EyTM5HklZeD20pCuL4IcboTh+f/+/Sg/GkOfjjBvkCfkblP2+G5Yghwu/zktcs0Q34Ag1W1ddFdF9mKec3kTvhDF+9aBN/vo21tf6rgKHooDIjY6uF+GYwhtfy5N2vCb3fTU1zCfEot4e4mQXPARdabBuUB1GxuyU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787243282; c=relaxed/simple; bh=tl50s2HSt44SNxNpuf0QHniQNhHa8S9SGI+O+GKZaF8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=gKdV7g7ov6WlVqYdjS+h6mf9AwYmEcxa9MWFXf1kv+V3ivkOlEBJKZdU4Y4nZ/+bQnD6O+SSQtlN211tHOdwu2qOnskM14tWqPWcjIPrUigkJJP6EOjQEQAQyXAD1n0t1KwLT6wT6zSQB4fL4KsdTmnKEF6FfR+4qYW1+MSF0qo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=JWOqLnSc; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="JWOqLnSc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EAB841F000E9; Thu, 20 Aug 2026 16:27:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1787243280; bh=7T9gh0JSvfTgcJS1jr5+UTo2vZNZcfESEWesL0IBtNI=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=JWOqLnScKiC042xucNd1KQqf1E5zWSoplExrLxeRgAYjgKJUxboEvyARfzbrwPc5n PNDpyxNh3p+MThy7pezYrcKTCi0N/0thKCRvYQyGApqiSDr/bHzDNm/3hsXX5pORsO kX3IKMKJjoGmwwekfFwkA4TeQh9KXDj92n4F9ZXI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, David Rosca , Leo Liu , Ruijing Dong , Alex Deucher Subject: [PATCH 5.15 041/272] drm/amdgpu: Reject UVD message with dimensions above 4096 Date: Thu, 20 Aug 2026 16:53:45 +0200 Message-ID: <20260820145232.456463311@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260820145231.229664293@linuxfoundation.org> References: <20260820145231.229664293@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: David Rosca commit 8c9aebcdd9f46f7a14b98d6ab18574b7a48fbb08 upstream. Fixes potential overflow in DPB size calculations. Signed-off-by: David Rosca Acked-by: Leo Liu Reviewed-by: Ruijing Dong Signed-off-by: Alex Deucher (cherry picked from commit 05e1387d151f71569fbe122d2c89f9db0c21dc10) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c @@ -578,8 +578,8 @@ static int amdgpu_uvd_cs_msg_decode(stru unsigned image_size, tmp, min_dpb_size, num_dpb_buffer; unsigned min_ctx_size = ~0; - /* Reject invalid dimensions to prevent division by zero */ - if (width < 16 || height < 16) { + /* Reject invalid dimensions */ + if (width < 16 || height < 16 || width > 4096 || height > 4096) { dev_WARN_ONCE(adev->dev, 1, "Invalid UVD decoding dimensions (%dx%d)!\n", width, height);