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linux-stable/sound/core/seq
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Takashi Iwai 297224fc09 ALSA: seq: oss: Fix racy open/close of MIDI devices 
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>
 		2023-06-16 09:26:41 +02:00
..
oss ALSA: seq: oss: Fix racy open/close of MIDI devices 2023-06-16 09:26:41 +02:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
seq_clientmgr.c ALSA: seq: Fix data-race at module auto-loading 2022-08-24 07:59:06 +02:00
seq_clientmgr.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
seq_compat.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
seq_dummy.c ALSA: seq: Fix comments of wrong client number for MIDI Passthrough 2021-07-27 12:53:00 +02:00
seq_fifo.c ALSA: seq: Fix assignment in if condition 2021-06-09 17:30:26 +02:00
seq_fifo.h ALSA: seq: Fix potential concurrent access to the deleted pool 2019-08-25 09:31:10 +02:00
seq_info.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
seq_info.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
seq_lock.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
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 2022-11-19 09:20:11 +01:00
seq_memory.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
seq_midi.c ALSA: seq: Fix assignment in if condition 2021-06-09 17:30:26 +02:00
seq_midi_emul.c ALSA: Use fallthrough pseudo-keyword 2020-07-09 13:01:29 +02:00
seq_midi_event.c ALSA: seq: More constifications 2020-01-05 16:14:29 +01:00
seq_ports.c ALSA: seq: replace ternary operator with max() 2022-05-17 08:49:42 +02:00
seq_ports.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
seq_prioq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
seq_prioq.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
seq_queue.c ALSA: seq: Set upper limit of processed events 2021-12-07 17:52:28 +01:00
seq_queue.h ALSA: seq: Use bool for snd_seq_queue internal flags 2020-12-06 09:35:53 +01:00
seq_system.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
seq_system.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
seq_timer.c ALSA: seq: Fix race of snd_seq_timer_open() 2021-06-10 17:21:30 +02:00
seq_timer.h ALSA: seq: Fix concurrent access to queue current tick/time 2020-02-14 15:53:09 +01:00
seq_virmidi.c ALSA: seq: virmidi: Add a drain operation 2022-01-06 16:08:07 +01:00