linux-kernel - [PATCH v2 0/2] ALSA: hda: Widget memory fixes

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20190626212220.239897-1-evgreen@chromium.org>
Date:   Wed, 26 Jun 2019 14:22:18 -0700
From:   Evan Green <evgreen@...omium.org>
To:     Takashi Iwai <tiwai@...e.com>
Cc:     Evan Green <evgreen@...omium.org>,
        Jaroslav Kysela <perex@...ex.cz>, alsa-devel@...a-project.org,
        Amadeusz Sławiński 
        <amadeuszx.slawinski@...ux.intel.com>,
        linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH v2 0/2] ALSA: hda: Widget memory fixes


This series fixes concurrency issues with the sysfs widget array. The first
function patches up the locking that was introduced recently to protect more
of the data structure. The second patch fixes a race between a reinit and the
initial population of the array which could result in a length and array
getting out of sync.


Changes in v2:
- Introduced widget_mutex relocation

Evan Green (2):
  ALSA: hda: Fix widget_mutex incomplete protection
  ALSA: hda: Use correct start/count for sysfs init

 sound/hda/hdac_device.c | 21 ++++++++++++++-------
 sound/hda/hdac_sysfs.c  | 18 ++++++++++--------
 sound/hda/local.h       |  3 ++-
 3 files changed, 26 insertions(+), 16 deletions(-)

-- 
2.20.1