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linux-stable/sound/core/seq
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Takashi Iwai 97d3472b43 ALSA: seq: oss: Fix racy open/close of MIDI devices 
[ Upstream commit 297224fc09 ]

Although snd_seq_oss_midi_open() and snd_seq_oss_midi_close() can be
called concurrently from different code paths, we have no proper data
protection against races.  Introduce open_mutex to each seq_oss_midi
object for avoiding the races.

Reported-by: "Gong, Sishuai" <sishuai@purdue.edu>
Closes: https://lore.kernel.org/r/7DC9AF71-F481-4ABA-955F-76C535661E33@purdue.edu
Link: https://lore.kernel.org/r/20230612125533.27461-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2023-09-23 10:47:58 +02:00
..
oss ALSA: seq: oss: Fix racy open/close of MIDI devices 2023-09-23 10:47:58 +02:00
Kconfig ALSA: seq: Fix CONFIG_SND_SEQ_MIDI dependency 2017-08-11 09:51:41 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
seq.c ALSA: seq: Fix leftovers at probe error path 2018-08-01 22:54:36 +02:00
seq_clientmgr.c ALSA: seq: Fix data-race at module auto-loading 2022-09-15 12:17:04 +02:00
seq_clientmgr.h ALSA: seq: Make ioctls race-free 2018-01-11 14:37:51 +01:00
seq_compat.c
…
seq_dummy.c
…
seq_fifo.c ALSA: seq: Fix potential concurrent access to the deleted pool 2019-09-06 10:22:09 +02:00
seq_fifo.h ALSA: seq: Fix potential concurrent access to the deleted pool 2019-09-06 10:22:09 +02:00
seq_info.c ALSA: seq: Fix leftovers at probe error path 2018-08-01 22:54:36 +02:00
seq_info.h ALSA: seq: Fix leftovers at probe error path 2018-08-01 22:54:36 +02:00
seq_lock.c ALSA: seq: Enable 'use' locking in all configurations 2017-10-18 08:01:46 +02:00
seq_lock.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
seq_memory.c ALSA: seq: Fix function prototype mismatch in snd_seq_expand_var_event 2022-12-14 11:28:26 +01:00
seq_memory.h ALSA: seq: Remove dead codes 2018-08-01 22:54:35 +02:00
seq_midi.c ALSA: seq: Minor cleanup of MIDI event parser helpers 2018-08-01 22:54:35 +02:00
seq_midi_emul.c ALSA: seq: Mark expected switch fall-through 2018-08-04 08:30:36 +02:00
seq_midi_event.c ALSA: seq: Remove dead codes 2018-08-01 22:54:35 +02:00
seq_ports.c ALSA: seq: Fix racy deletion of subscriber 2021-08-12 13:19:38 +02:00
seq_ports.h ALSA: seq: Fix race of get-subscription call vs port-delete ioctls 2019-06-19 08:18:01 +02:00
seq_prioq.c ALSA: seq: Fix possible UAF in snd_seq_check_queue() 2018-03-10 17:29:49 +01:00
seq_prioq.h ALSA: seq: Fix possible UAF in snd_seq_check_queue() 2018-03-10 17:29:49 +01:00
seq_queue.c ALSA: seq: Set upper limit of processed events 2022-01-27 09:04:29 +01:00
seq_queue.h ALSA: seq: Use bool for snd_seq_queue internal flags 2021-01-06 14:45:00 +01:00
seq_system.c ALSA: seq: Do error checks at creating system ports 2019-11-20 18:45:27 +01:00
seq_system.h
…
seq_timer.c ALSA: seq: Fix concurrent access to queue current tick/time 2020-02-28 16:39:00 +01:00
seq_timer.h ALSA: seq: Fix concurrent access to queue current tick/time 2020-02-28 16:39:00 +01:00
seq_virmidi.c ALSA: seq: virmidi: Fix running status after receiving sysex 2020-03-25 08:06:09 +01:00