Takashi Iwai 4e7655fd4f ALSA: seq: Don't break snd_use_lock_sync() loop by timeout ... The snd_use_lock_sync() (thus its implementation snd_use_lock_sync_helper()) has the 5 seconds timeout to break out of the sync loop. It was introduced from the beginning, just to be "safer", in terms of avoiding the stupid bugs. However, as Ben Hutchings suggested, this timeout rather introduces a potential leak or use-after-free that was apparently fixed by the commit 2d7d54002e ("ALSA: seq: Fix race during FIFO resize"): for example, snd_seq_fifo_event_in() -> snd_seq_event_dup() -> copy_from_user() could block for a long time, and snd_use_lock_sync() goes timeout and still leaves the cell at releasing the pool. For fixing such a problem, we remove the break by the timeout while still keeping the warning. Suggested-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>		2017-04-13 14:13:25 +02:00
..
oss	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
seq	ALSA: seq: Don't break snd_use_lock_sync() loop by timeout	2017-04-13 14:13:25 +02:00
compress_offload.c	ALSA: compress: fix some missing and misplaced \n in messages	2016-09-16 19:24:13 +02:00
control_compat.c	ALSA: ctl: change return value in compatibility layer so that it's the same value in core implementation	2016-03-17 14:11:36 +01:00
control.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
ctljack.c	ALSA: jack: Fix endless loop at unique index detection	2015-06-26 06:59:57 +02:00
device.c	Merge branch 'topic/hda-unbind' into for-next	2015-03-16 14:48:20 +01:00
hrtimer.c	ktime: Get rid of the union	2016-12-25 17:21:22 +01:00
hwdep_compat.c	[PATCH] hwdep_compat missed __user annotations	2006-10-10 15:37:21 -07:00
hwdep.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
info_oss.c	ALSA: core: Clean up OSS proc file management	2015-04-24 17:31:08 +02:00
info.c	ALSA: info: Return error for invalid read/write	2016-11-08 14:37:26 +01:00
init.c	ALSA: hda_intel: add card number to irq description	2016-01-12 21:05:16 +01:00
isadma.c	ALSA: core: Use standard printk helpers	2014-02-14 08:14:15 +01:00
jack.c	ALSA: jack: Allow building the jack layer without input device	2016-02-23 09:03:07 +01:00
Kconfig	ALSA: timer: remove legacy rtctimer	2016-04-25 10:41:46 +02:00
Makefile	ALSA: timer: remove legacy rtctimer	2016-04-25 10:41:46 +02:00
memalloc.c	genalloc: rename of_get_named_gen_pool() to of_gen_pool_get()	2015-06-30 19:45:01 -07:00
memory.c	ALSA: Include linux/uaccess.h and linux/bitopts.h instead of asm/*	2015-01-28 17:25:07 +01:00
misc.c	printk/sound: handle more message headers	2016-12-12 18:55:09 -08:00
pcm_compat.c	ALSA: pcm: Fix ioctls for X32 ABI	2016-02-28 17:44:35 +01:00
pcm_dmaengine.c	ASoC: dmaengine_pcm: Add support for packed transfers	2016-04-27 17:34:11 +01:00
pcm_drm_eld.c	ALSA: pcm: add DRM ELD helper	2015-05-22 16:01:44 +02:00
pcm_iec958.c	ALSA: pcm: Allow 32 bit sample format in IEC958 channel status helper	2016-04-06 14:33:38 -07:00
pcm_lib.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
pcm_memory.c	ALSA: Include linux/io.h instead of asm/io.h	2015-01-28 16:49:33 +01:00
pcm_misc.c	ALSA: pcm: Add snd_pcm_rate_range_to_bits()	2016-02-05 18:49:00 +00:00
pcm_native.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
pcm_timer.c	ALSA: pcm: Use standard printk helpers	2014-02-14 08:14:15 +01:00
pcm_trace.h	ALSA: pcm: Replace PCM hwptr tracking with tracepoints	2014-11-04 14:09:14 +01:00
pcm.c	ALSA: pcm: Free chmap at PCM free callback, too	2016-07-08 09:15:44 +02:00
rawmidi_compat.c	ALSA: rawmidi: Fix ioctls X32 ABI	2016-02-28 17:44:51 +01:00
rawmidi.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
sgbuf.c	ALSA: core: Deletion of unnecessary checks before two function calls	2014-11-21 20:06:57 +01:00
sound_oss.c	ALSA: replace CONFIG_PROC_FS with CONFIG_SND_PROC_FS	2015-05-27 21:25:19 +02:00
sound.c	ALSA: replace CONFIG_PROC_FS with CONFIG_SND_PROC_FS	2015-05-27 21:25:19 +02:00
timer_compat.c	ALSA: timer: fix gparams ioctl compatibility for different architectures	2016-03-23 08:06:16 +01:00
timer.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
vmaster.c	ALSA: core: Use standard printk helpers	2014-02-14 08:14:15 +01:00