Lars-Peter Clausen be3bae536e ALSA: control: Protect user controls against concurrent access ... commit 07f4d9d74a04aa7c72c5dae0ef97565f28f17b92 upstream. The user-control put and get handlers as well as the tlv do not protect against concurrent access from multiple threads. Since the state of the control is not updated atomically it is possible that either two write operations or a write and a read operation race against each other. Both can lead to arbitrary memory disclosure. This patch introduces a new lock that protects user-controls from concurrent access. Since applications typically access controls sequentially than in parallel a single lock per card should be fine. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Jaroslav Kysela <perex@perex.cz> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2014-06-26 15:12:43 -04:00
..
ac97_codec.h	Sound updates for 3.7-rc1	2012-10-09 07:07:14 +09:00
aci.h
ad1816a.h	Sound updates for 3.7-rc1	2012-10-09 07:07:14 +09:00
ad1843.h
adau1373.h
aess.h	ASoC: TI AESS: add autogating-enable function, callable from architecture code	2013-02-10 11:22:23 -07:00
ak4xxx-adda.h
ak4113.h
ak4114.h
ak4117.h
ak4531_codec.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
ak4641.h
alc5623.h
asequencer.h	UAPI: (Scripted) Disintegrate include/sound	2012-10-09 09:49:13 +01:00
asound.h	UAPI: (Scripted) Disintegrate include/sound	2012-10-09 09:49:13 +01:00
asoundef.h
atmel-abdac.h
atmel-ac97c.h
compress_driver.h	ALSA: compress: fix drain calls blocking other compress functions (v6)	2013-11-29 11:11:45 -08:00
control.h	ALSA: add/change some comments describing function return values	2013-03-12 08:32:53 +01:00
core.h	ALSA: control: Protect user controls against concurrent access	2014-06-26 15:12:43 -04:00
cs42l52.h
cs4231-regs.h
cs4271.h	ALSA: ASoC: cs4271: add optional soft reset workaround	2012-12-24 15:53:28 +00:00
cs8403.h
cs8427.h
da7213.h	ASoC: codecs: Add da7213 codec	2013-02-14 17:27:17 +00:00
da9055.h	ASoC: codecs: Add DA9055 codec driver	2012-09-28 14:21:54 +01:00
designware_i2s.h
dmaengine_pcm.h	ASoC: generic-dmaengine-pcm: Add support for half-duplex	2013-04-22 11:27:04 +01:00
emu10k1.h	ALSA: emu10k1: Fix dock firmware loading	2013-04-24 08:11:49 +02:00
emu10k1_synth.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
emu8000.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
emu8000_reg.h
emux_legacy.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
emux_synth.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
es1688.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
gus.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
hda_hwdep.h
hwdep.h
i2c.h
info.h
initval.h
jack.h
l3.h
max9768.h
max98088.h
max98090.h	ASoC:: max98090: Remove executable bit	2013-03-20 10:54:12 +01:00
max98095.h
memalloc.h	ALSA: memalloc.h - fix wrong truncation of dma_addr_t	2013-12-20 07:45:06 -08:00
minors.h
mixer_oss.h
mpu401.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
opl3.h
opl4.h
pcm-indirect.h
pcm.h	sound updates for v3.10-rc1	2013-05-03 09:10:23 -07:00
pcm_oss.h
pcm_params.h
pt2258.h
pxa2xx-lib.h
rawmidi.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
s3c24xx_uda134x.h
sb.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
sb16_csp.h	UAPI: (Scripted) Disintegrate include/sound	2012-10-09 09:49:13 +01:00
seq_device.h
seq_kernel.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
seq_midi_emul.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
seq_midi_event.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
seq_oss.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
seq_oss_legacy.h
seq_virmidi.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
sh_dac_audio.h
sh_fsi.h	ASoC: fsi: cleanup sh_fsi.h	2012-12-24 15:57:20 +00:00
simple_card.h	ASoC: simple-card: add asoc_simple_dai for initializing	2013-01-14 06:55:43 +09:00
snd_wavefront.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
soc-dai.h	ASoC: snd_soc_[un]register_dai[s]() become non global function	2013-03-26 21:57:54 +00:00
soc-dapm.h	ASoC: dapm: Treat DAI widgets like AIF widgets for power	2013-06-07 15:54:50 +01:00
soc-dpcm.h
soc.h	Merge remote-tracking branch 'asoc/topic/dma' into asoc-next	2013-04-23 19:26:00 +01:00
soundfont.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
spear_dma.h
spear_spdif.h
sta32x.h
tas5086.h	ALSA: ASoC: add codec driver for TI TAS5086	2013-03-08 21:06:09 +08:00
tea575x-tuner.h
tea6330t.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00
timer.h
tlv.h	ALSA: Add comment for control TLV API	2013-05-08 15:43:56 +02:00
tlv320aic3x.h	ASoC: tlv320aic3x: Convert mic bias to a supply widget	2013-02-04 18:35:19 +00:00
tlv320aic32x4.h	ASoC: tlv320aic32x4: Add rstn gpio to platform data.	2012-11-01 14:35:56 +00:00
tlv320dac33-plat.h
tpa6130a2-plat.h
uda134x.h
uda1380.h
util_mem.h
vx_core.h	ALSA: vx: hard dependency on the standard fw loader	2012-11-22 17:48:01 +01:00
wavefront.h
wm0010.h
wm1250-ev1.h
wm2000.h	ASoC: wm2000: Use clock API integration to configure MCLK divisor	2012-12-24 15:42:35 +00:00
wm2200.h	ASoC: wm2200: Provide platform data for MICBIAS configuration	2013-02-05 15:53:07 +00:00
wm5100.h
wm8903.h
wm8904.h
wm8955.h
wm8960.h	ASoC: wm8960: remove 'dres' field from platform data structure	2012-09-21 08:35:06 -04:00
wm8962.h
wm8993.h
wm8996.h
wm9081.h
wm9090.h
wss.h	UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers	2012-10-02 18:01:25 +01:00