linux

iv/linux

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Pierre-Louis Bossart 46a8e16fcf ALSA: hda: hdac_stream: fix potential locking issue in snd_hdac_stream_assign()

commit 1465d06a6d8580e73ae65f8590392df58c5ed2fd upstream.

The fields 'opened', 'running', 'assigned_key' are all protected by a
spinlock, but the spinlock is not taken when looking for a
stream. This can result in a possible race between assign() and
release().

Fix by taking the spinlock before walking through the bus stream list.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210924192417.169243-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cc: Scott Bruce <smbruce@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2021-11-26 10:47:23 +01:00

ext

ALSA: hda: hdac_ext_stream: fix potential locking issues

2021-11-26 10:47:23 +01:00

array.c

treewide: Add SPDX license identifier for missed files

2019-05-21 10:50:45 +02:00

hda_bus_type.c

treewide: Add SPDX license identifier for more missed files

2019-05-21 10:50:45 +02:00

hdac_bus.c

ALSA: hda: Fix potential race in unsol event handler