Takashi Iwai dc7497795e ALSA: seq: Fix concurrent access to queue current tick/time ... snd_seq_check_queue() passes the current tick and time of the given queue as a pointer to snd_seq_prioq_cell_out(), but those might be updated concurrently by the seq timer update. Fix it by retrieving the current tick and time via the proper helper functions at first, and pass those values to snd_seq_prioq_cell_out() later in the loops. snd_seq_timer_get_cur_time() takes a new argument and adjusts with the current system time only when it's requested so; this update isn't needed for snd_seq_check_queue(), as it's called either from the interrupt handler or right after queuing. Also, snd_seq_timer_get_cur_tick() is changed to read the value in the spinlock for the concurrency, too. Reported-by: syzbot+fd5e0eaa1a32999173b2@syzkaller.appspotmail.com Link: https://lore.kernel.org/r/20200214111316.26939-3-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>		2020-02-14 15:53:09 +01:00
..
oss	ALSA: oss: More constifications	2020-01-05 16:14:58 +01:00
seq	ALSA: seq: Fix concurrent access to queue current tick/time	2020-02-14 15:53:09 +01:00
compress_offload.c	ALSA: core: Constify snd_device_ops definitions	2020-01-03 09:23:51 +01:00
control_compat.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
control.c	ALSA: control: potential uninitialized return value	2020-01-08 07:20:28 +01:00
ctljack.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
device.c	ALSA: core: Treat snd_device_ops as const	2020-01-03 09:23:50 +01:00
hrtimer.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
hwdep_compat.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
hwdep.c	ALSA: core: Constify snd_device_ops definitions	2020-01-03 09:23:51 +01:00
info_oss.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
info.c	proc: convert everything to "struct proc_ops"	2020-02-04 03:05:26 +00:00
init.c	ALSA: pcm: Set per-card upper limit of PCM buffer allocations	2020-01-21 07:11:55 +01:00
isadma.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
jack.c	ALSA: jack: More constification	2020-01-05 16:14:57 +01:00
Kconfig	ALSA: control: Add verification for kctl accesses	2020-01-04 09:37:59 +01:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
memalloc.c	ALSA: memalloc: Add vmalloc buffer allocation support	2019-11-06 15:43:33 +01:00
memory.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
misc.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
pcm_compat.c	ALSA: pcm: Fix sparse warnings wrt snd_pcm_state_t	2020-01-31 16:23:13 +01:00
pcm_dmaengine.c	ASoC: pcm_dmaengine: Extract snd_dmaengine_pcm_refine_runtime_hwparams	2019-10-01 12:18:25 +01:00
pcm_drm_eld.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
pcm_iec958.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
pcm_lib.c	ALSA: pcm: More constifications	2020-01-05 16:14:29 +01:00
pcm_local.h	ALSA: pcm: Make snd_pcm_hw_constraints_init() and _complete() static	2020-01-16 17:29:33 +01:00
pcm_memory.c	ALSA: pcm: Set per-card upper limit of PCM buffer allocations	2020-01-21 07:11:55 +01:00
pcm_misc.c	ALSA: pcm: More constifications	2020-01-05 16:14:29 +01:00
pcm_native.c	ALSA: pcm: Fix double hw_free calls	2020-02-13 16:30:22 +01:00
pcm_param_trace.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
pcm_timer.c	ALSA: timer: Constify snd_timer_hardware definitions	2020-01-03 09:24:07 +01:00
pcm_trace.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
pcm.c	ALSA: pcm: More constifications	2020-01-05 16:14:29 +01:00
rawmidi_compat.c	ALSA: Avoid using timespec for struct snd_rawmidi_status	2019-12-11 22:06:16 +01:00
rawmidi.c	ALSA: rawmidi: More constification	2020-01-05 16:14:58 +01:00
seq_device.c	ALSA: core: Constify snd_device_ops definitions	2020-01-03 09:23:51 +01:00
sgbuf.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
sound_oss.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
sound.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156	2019-05-30 11:26:35 -07:00
timer_compat.c	ALSA: Avoid using timespec for struct snd_timer_tread	2019-12-13 11:25:57 +01:00
timer.c	ALSA: timer: fix nsec/sec initialization confusion	2020-01-12 09:08:22 +01:00
vmaster.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 372	2019-06-05 17:37:10 +02:00