Takashi Iwai 8419b74a43 ALSA: virmidi: Fix too long output trigger loop ... commit 50e9ffb199 upstream. The virmidi output trigger tries to parse the all available bytes and process sequencer events as much as possible. In a normal situation, this is supposed to be relatively short, but a program may give a huge buffer and it'll take a long time in a single spin lock, which may eventually lead to a soft lockup. This patch simply adds a workaround, a cond_resched() call in the loop if applicable. A better solution would be to move the event processor into a work, but let's put a duct-tape quickly at first. Reported-and-tested-by: Dae R. Jeong <threeearcat@gmail.com> Reported-by: syzbot+619d9f40141d826b097e@syzkaller.appspotmail.com Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-08-22 07:48:36 +02:00
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oss	ALSA: seq: oss: Hardening for potential Spectre v1	2018-05-02 07:53:41 -07:00
Kconfig
Makefile
seq_clientmgr.c	ALSA: seq: Clear client entry before deleting else at closing	2018-03-22 09:23:31 +01:00
seq_clientmgr.h	ALSA: seq: Make ioctls race-free	2018-02-03 17:04:25 +01:00
seq_compat.c
seq_device.c	ALSA: seq: Cancel pending autoload work at unbinding device	2017-11-18 11:11:05 +01:00
seq_dummy.c
seq_fifo.c	ALSA: seq: More protection for concurrent write and ioctl races	2018-03-18 11:17:50 +01:00
seq_fifo.h
seq_info.c
seq_info.h
seq_lock.c	ALSA: seq: Enable 'use' locking in all configurations	2017-10-27 10:23:16 +02:00
seq_lock.h	ALSA: seq: Enable 'use' locking in all configurations	2017-10-27 10:23:16 +02:00
seq_memory.c	ALSA: seq: More protection for concurrent write and ioctl races	2018-03-18 11:17:50 +01:00
seq_memory.h	ALSA: seq: More protection for concurrent write and ioctl races	2018-03-18 11:17:50 +01:00
seq_midi_emul.c
seq_midi_event.c
seq_midi.c
seq_ports.c
seq_ports.h
seq_prioq.c	ALSA: seq: Fix possible UAF in snd_seq_check_queue()	2018-03-22 09:23:31 +01:00
seq_prioq.h	ALSA: seq: Fix possible UAF in snd_seq_check_queue()	2018-03-22 09:23:31 +01:00
seq_queue.c	ALSA: seq: Fix possible UAF in snd_seq_check_queue()	2018-03-22 09:23:31 +01:00
seq_queue.h
seq_system.c
seq_system.h
seq_timer.c	ALSA: seq: Remove spurious WARN_ON() at timer check	2017-12-16 10:33:49 +01:00
seq_timer.h
seq_virmidi.c	ALSA: virmidi: Fix too long output trigger loop	2018-08-22 07:48:36 +02:00
seq.c