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 2F06337F31A; Thu, 20 Aug 2026 15:25:47 +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=1787239549; cv=none; b=nSg9QBMOnwxRr4syw2ZmRdHSvkFs4PGH+/bTV699vTBsUjXRcvocxJj3zpYa9MjYyWk4kjqDhec7yEMElU2ubSeNIcxPCwhR4gNIVSYNL1peXVDT47Q+7t7EdEVSaKP0NE2NNKmzJBJoukoq4Zu3XF/3fhcFq667XvliiZsy69s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787239549; c=relaxed/simple; bh=nKW8Z3h41/QyxX2AnLQBK3HWt5bsQEpL68pVv66o6h4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=DU7L6fq9tjfjnlG8d1H2aLCHsZVcSTgbcDp48yTweLmlNoWrcPHzahJhChv3q5lfhLfDQyoiCh1mpCPfguzg3ZqtsyMoaaz8O2jrFxMnPrO4iOzqM5tGmpQCvzIX9DBKUZLPVtuJNnFSPgLUbnj6QOLCwIYaOT8RSu+UiqvJiJM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=sXU1/kfZ; 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="sXU1/kfZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 53A1C1F000E9; Thu, 20 Aug 2026 15:25:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1787239547; bh=mnXP5e0H8IVi+8smDaW38J+a/rHPrXoCmgu10kyuQAg=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=sXU1/kfZNULSUEGZ0jZv94L5UsufNXVmu6ea9KVdMdmtHZ19SxwmTdh3NqRBrvqEQ A1e7KGSve7ed+nACKbPLlso/5E18zaP3q//oO4ipcEPfJDlpdw9Q6Nv6ge7hFXw+5D SCjJNQ3lqMVPJAlLfQOcP0xOqE6QpLE7ivIVoUpU= 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 6.12 086/220] drm/amdgpu: Reject UVD message with dimensions above 4096 Date: Thu, 20 Aug 2026 16:54:36 +0200 Message-ID: <20260820145226.066595203@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260820145223.480031205@linuxfoundation.org> References: <20260820145223.480031205@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 6.12-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 @@ -654,8 +654,8 @@ static int amdgpu_uvd_cs_msg_decode(stru unsigned int image_size, tmp, min_dpb_size, num_dpb_buffer; unsigned int 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);