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linux/include/sound
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Takashi Iwai 33061d0fba ALSA: pcm: Fix races among concurrent hw_params and hw_free calls 
commit 92ee3c60ec9fe64404dc035e7c41277d74aa26cb upstream.

Currently we have neither proper check nor protection against the
concurrent calls of PCM hw_params and hw_free ioctls, which may result
in a UAF.  Since the existing PCM stream lock can't be used for
protecting the whole ioctl operations, we need a new mutex to protect
those racy calls.

This patch introduced a new mutex, runtime->buffer_mutex, and applies
it to both hw_params and hw_free ioctl code paths.  Along with it, the
both functions are slightly modified (the mmap_count check is moved
into the state-check block) for code simplicity.

Reported-by: Hu Jiahui <kirin.say@gmail.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20220322170720.3529-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-03-28 09:58:43 +02:00
..
ac97
ASoC: ac97: convert to SPDX identifiers
2018-07-02 10:56:09 +01:00
sof
ASoC: SOF: ext_manifest: use explicit number for elem_type
2021-02-10 17:17:13 +00:00
ac97_codec.h
ALSA: ac97: Treat snd_ac97_bus_ops as const
2020-01-03 09:24:08 +01:00
aci.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
ad1816a.h
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adau1373.h
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ak4641.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
alc5623.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
asequencer.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
asound.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
asoundef.h
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2019-05-30 11:26:35 -07:00
compress_driver.h
ALSA: compress: Drop unused functions
2021-07-15 10:22:30 +02:00
control.h
ALSA: control - add generic LED trigger module as the new control layer
2021-03-30 15:33:58 +02:00
core.h
ALSA: core: Add device-managed request_dma()
2021-07-19 16:16:34 +02:00
cs35l33.h
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cs35l34.h
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cs35l35.h
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cs35l36.h
ASoC: cs35l36: Add support for Cirrus CS35L36 Amplifier
2019-02-08 13:00:28 +00:00
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designware_i2s.h
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2019-05-30 11:26:35 -07:00
dmaengine_pcm.h
ASoC: dmaengine_pcm: add peripheral configuration
2021-02-05 17:16:41 +00:00
emu10k1_synth.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
emu10k1.h
ALSA: emu10k1: Allocate resources with device-managed APIs
2021-07-19 16:16:56 +02:00
emu8000_reg.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
emu8000.h
ALSA: sb: Allocate resources with device-managed APIs
2021-07-19 16:17:14 +02:00
emux_legacy.h
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emux_synth.h
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2019-05-30 11:26:35 -07:00
es1688.h
ALSA: es1688: Avoid devres management for es1688 object creation
2021-08-05 08:24:17 +02:00
graph_card.h
ASoC: audio-graph: move audio_graph_remove() to simple-card-utils.c
2021-04-20 17:25:45 +01:00
gus.h
ALSA: isa/gus: remove -Wmissing-prototypes warnings
2020-07-07 11:59:59 +02:00
hda_chmap.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
hda_codec.h
ALSA: hda: Fix potential deadlock at codec unbinding
2022-01-27 11:04:05 +01:00
hda_component.h
i915/snd_hdac: I915 subcomponent for the snd_hdac
2019-02-08 16:58:59 +01:00
hda_hwdep.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 32
2019-05-24 17:27:10 +02:00
hda_i915.h
ALSA: hda: Make audio component support more generic
2018-07-17 22:25:48 +02:00
hda_register.h
ALSA: hda: Change AZX_MAX_BUF_SIZE from 1GB to 4MB
2021-03-19 16:54:58 +01:00
hda_regmap.h
ALSA: hda: Manage concurrent reg access more properly
2020-01-13 13:40:41 +01:00
hda_verbs.h
ALSA: hda: add verbs for stripe control
2019-01-14 19:52:23 +01:00
hdaudio_ext.h
ALSA: hda: hdac_ext_stream: fix potential locking issues
2021-11-25 09:49:08 +01:00
hdaudio.h
ALSA: hda: add link_power op to hdac_bus_ops
2021-02-08 15:56:35 +01:00
hdmi-codec.h
ASoC: hdmi-codec: Add a prepare hook
2021-06-10 11:48:56 +02:00
hwdep.h
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i2c.h
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2019-05-30 11:26:35 -07:00
info.h
ALSA: info: Make snd_info_entry_ops as const
2020-01-03 09:24:18 +01:00
initval.h
ALSA: Allow const arrays for legacy resource management helpers
2020-01-05 16:14:26 +01:00
intel-dsp-config.h
ALSA: hda: intel-dsp-config: add helper for ACPI DSP driver selection
2020-11-19 18:24:35 +00:00
intel-nhlt.h
ALSA: hda: intel-nhlt: verify config type
2021-03-02 10:22:47 +01:00
jack.h
ALSA: jack: implement software jack injection via debugfs
2021-02-02 10:37:07 +01:00
l3.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
madera-pdata.h
ASoC: madera: Update SPDX headers
2019-06-26 12:27:50 +01:00
max9768.h
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max98088.h
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max98095.h
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memalloc.h
ALSA: memalloc: Correctly name as WC
2021-08-04 08:07:58 +02:00
minors.h
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mixer_oss.h
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mpu401.h
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omap-hdmi-audio.h
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opl3.h
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opl4.h
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pcm_drm_eld.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
pcm_iec958.h
ALSA: iec958: Split status creation and fill
2021-06-08 17:05:41 +02:00
pcm_oss.h
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2019-05-30 11:26:35 -07:00
pcm_params.h
ALSA: pcm: Remove unused inline function snd_mask_sizeof
2020-09-09 18:43:07 +02:00
pcm-indirect.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61
2019-05-24 17:36:45 +02:00
pcm.h
ALSA: pcm: Fix races among concurrent hw_params and hw_free calls
2022-03-28 09:58:43 +02:00
pt2258.h
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2019-05-30 11:26:35 -07:00
pxa2xx-lib.h
ALSA: pxa2xx: Use managed PCM buffer allocation
2021-08-04 08:08:21 +02:00
rawmidi.h
ALSA: rawmidi: introduce SNDRV_RAWMIDI_IOCTL_USER_PVERSION
2021-09-23 09:26:40 +02:00
rt286.h
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rt298.h
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rt1015.h
ASoC: rt1015: add delay to fix pop noise from speaker
2020-11-05 17:25:17 +00:00
rt5514.h
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rt5668.h
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rt5682.h
ASoC: rt5682: Add a new property for the DMIC clock driving
2020-11-13 14:22:09 +00:00
s3c24xx_uda134x.h
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
sb16_csp.h
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sb.h
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seq_device.h
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seq_kernel.h
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seq_midi_emul.h
ALSA: seq: Constify struct snd_midi_op
2020-01-03 09:24:19 +01:00
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sh_dac_audio.h
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sh_fsi.h
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2018-08-02 10:56:59 +01:00
simple_card_utils.h
ASoC: audio-graph: move audio_graph_remove() to simple-card-utils.c
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simple_card.h
ASoC: simple-card: convert to SPDX identifiers
2018-07-02 10:52:47 +01:00
snd_wavefront.h
ASoC: Updates for v4.15
2017-11-13 15:45:57 +01:00
soc-acpi-intel-match.h
ASoC: Intel: common: add ACPI matching tables for Alder Lake
2020-12-09 16:52:04 +00:00
soc-acpi.h
ASoC: soc-acpi: add new fields for mach_params
2021-04-12 17:05:51 +01:00
soc-card.h
ASoC: soc-card: add snd_soc_card_remove_dai_link()
2020-05-30 02:11:42 +01:00
soc-component.h
ASoC: soc-utils: add snd_soc_component_is_dummy()
2021-04-16 14:34:12 +01:00
soc-dai.h
ASoC: soc-core: add snd_soc_runtime_get_dai_fmt()
2021-06-07 15:55:12 +01:00
soc-dapm.h
ASoC: dapm: declare missing structure prototypes
2020-06-25 19:21:01 +01:00
soc-dpcm.h
ASoC: Revert PCM trigger changes
2021-08-30 12:15:15 +01:00
soc-jack.h
ASoC: add soc-jack.h
2020-11-30 12:54:02 +00:00
soc-link.h
ASoC: soc-pcm: care trigger rollback
2020-12-09 12:13:38 +00:00
soc-topology.h
ASoC: topology: Fix stub for snd_soc_tplg_component_remove()
2021-11-18 19:16:55 +01:00
soc.h
ASoC: soc-pcm: add a flag to reverse the stop sequence
2021-07-16 13:54:58 +01:00
sof.h
ASoC: SOF: add a helper to get topology configured bclk
2021-07-11 23:48:30 +01:00
soundfont.h
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spear_dma.h
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spear_spdif.h
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tas5086.h
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tea6330t.h
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timer.h
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util_mem.h
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vx_core.h
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wavefront.h
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wm0010.h
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wm1250-ev1.h
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wm2000.h
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wm8903.h
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wm8904.h
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wm8955.h
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wm8960.h
ASoC: wm8960: Support headphone jack detection function
2020-06-15 20:58:33 +01:00
wm8962.h
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wm9090.h
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wss.h
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