From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:54522 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751240AbdH1HBa (ORCPT ); Mon, 28 Aug 2017 03:01:30 -0400 Subject: Patch "ASoC: rsnd: Add missing initialization of ADG req_rate" has been added to the 4.4-stable tree To: geert+renesas@glider.be Cc: , From: Date: Mon, 28 Aug 2017 09:01:35 +0200 Message-ID: <1503903695216226@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled ASoC: rsnd: Add missing initialization of ADG req_rate to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: asoc-rsnd-add-missing-initialization-of-adg-req_rate.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 8b27418f300cafbdbbb8cfa9c29d398ed34d6723 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 28 Oct 2015 16:03:48 +0100 Subject: ASoC: rsnd: Add missing initialization of ADG req_rate From: Geert Uytterhoeven commit 8b27418f300cafbdbbb8cfa9c29d398ed34d6723 upstream. If the "clock-frequency" DT property is not found, req_rate is used uninitialized, and the "audio_clkout" clock will be created with an arbitrary clock rate. This uninitialized kernel stack data may leak to userspace through /sys/kernel/debug/clk/clk_summary, cfr. the value in the "rate" column: clock enable_cnt prepare_cnt rate accuracy phase -------------------------------------------------------------------- audio_clkout 0 0 4001836240 0 0 Signed-off-by: Geert Uytterhoeven Acked-by: Kuninori Morimoto Signed-off-by: Mark Brown Signed-off-by: Thong Ho Signed-off-by: Nhan Nguyen Signed-off-by: Greg Kroah-Hartman --- sound/soc/sh/rcar/adg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/sound/soc/sh/rcar/adg.c +++ b/sound/soc/sh/rcar/adg.c @@ -437,7 +437,7 @@ static void rsnd_adg_get_clkout(struct r struct device *dev = rsnd_priv_to_dev(priv); struct device_node *np = dev->of_node; u32 ckr, rbgx, rbga, rbgb; - u32 rate, req_rate, div; + u32 rate, req_rate = 0, div; uint32_t count = 0; unsigned long req_48kHz_rate, req_441kHz_rate; int i; Patches currently in stable-queue which might be from geert+renesas@glider.be are queue-4.4/asoc-rsnd-add-missing-initialization-of-adg-req_rate.patch