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 26DFD37F8A0; Thu, 20 Aug 2026 15:15:49 +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=1787238950; cv=none; b=BLU43fppCcEx32ljUzW8EKwskTeNrkGVwJVP3tgI62gyv+BMhXnG+nVbc27YUPSpG8vBC9Wb3cjtY57RGomyrxhutApH+ARTD8FoMRkiz5y8WywXTXgxj7k/50auBma+TD2FIx9+zh5sdq7Pf4B+fr/UPZbaGbgV97guVhNKT7g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787238950; c=relaxed/simple; bh=mxHI0Mry7jXTkFqrEymb0hFv5tfdn6rRnhILTwuJZqM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=OblSH4qnNkr1HdxE42CDp8nkAPd6wcZuehJOwIccuYtU5U8wCf1zfNNr4uUa+Fko82kqPDGDYvxQSj9U0zVTlV1w4v/evJkiuZOp5+dM/DtgWMjTwcAG7ECypUTbp3n7Qgahww+6ZSpAfw0mysGvDe6czvknIkLYSI0eDFpkTDY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=hamHNcQ5; 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="hamHNcQ5" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 805E11F000E9; Thu, 20 Aug 2026 15:15:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1787238949; bh=kedS0OasT0YKqdYzi8ooMlG+TSLfAOg95574cNC3inU=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=hamHNcQ5cuawf59amk6hRf6MuTKR9dGCxnTDpxdsJi7VmM1n1Gynjeg9FjDRq0Omf oQ7F3ot7OBvs/WPrDep3egFGTiFrsp3tQIi4uP60oeJhNfdcVyRuUlVkZJoV5zYaFK YVLC4fXSo76fkz4lnIFsX5rknS/UY+381q5xWFsc= 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 6.18 097/217] drm/amdgpu: Reject UVD message with dimensions above 4096 Date: Thu, 20 Aug 2026 16:54:25 +0200 Message-ID: <20260820145240.667622214@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260820145237.531699751@linuxfoundation.org> References: <20260820145237.531699751@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 6.18-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);