linux/sound/core/seq
Takashi Iwai 7c32ae35fb ALSA: seq: Cover unsubscribe_port() in list_mutex
The call of unsubscribe_port() which manages the group count and
module refcount from delete_and_unsubscribe_port() looks racy; it's
not covered by the group list lock, and it's likely a cause of the
reported unbalance at port deletion.  Let's move the call inside the
group list_mutex to plug the hole.

Reported-by: syzbot+e4c8abb920efa77bace9@syzkaller.appspotmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-04-12 12:50:10 +02:00
..
oss ALSA: seq: oss: Use the standard fall-through annotation 2018-10-12 09:31:29 +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_clientmgr.c Revert "ALSA: seq: Protect in-kernel ioctl calls with mutex" 2019-04-11 19:58:43 +02:00
seq_clientmgr.h ALSA: seq: Make ioctls race-free 2018-01-11 14:37:51 +01:00
seq_compat.c ALSA: seq: fix passing wrong pointer in function call of compatibility layer 2016-10-12 20:09:36 +02:00
seq_dummy.c ALSA: seq: Drop snd_seq_autoload_lock() and _unlock() 2015-02-12 14:42:31 +01:00
seq_fifo.c ALSA: seq: Remove superfluous irqsave flags 2019-04-09 17:22:46 +02:00
seq_fifo.h
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: Remove superfluous irqsave flags 2019-04-09 17:22:46 +02:00
seq_memory.h ALSA: seq: Remove dead codes 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_midi.c ALSA: seq: Minor cleanup of MIDI event parser helpers 2018-08-01 22:54:35 +02:00
seq_ports.c ALSA: seq: Cover unsubscribe_port() in list_mutex 2019-04-12 12:50:10 +02:00
seq_ports.h ALSA: seq: Fix race of get-subscription call vs port-delete ioctls 2019-04-09 18:54:13 +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: Fix leftovers at probe error path 2018-08-01 22:54:36 +02:00
seq_queue.h ALSA: seq: Drop unused 64bit division macros 2018-08-01 22:54:37 +02:00
seq_system.c ALSA: seq: Do error checks at creating system ports 2018-08-28 12:52:02 +02:00
seq_system.h
seq_timer.c ALSA: seq: Avoid open-code for getting timer resolution 2018-05-18 08:49:13 +02:00
seq_timer.h ALSA: seq: Process queue tempo/ppq change in a shot 2018-01-15 16:48:36 +01:00
seq_virmidi.c ALSA: rawmidi: A lightweight function to discard pending bytes 2018-10-04 20:13:17 +02:00
seq.c ALSA: seq: Fix leftovers at probe error path 2018-08-01 22:54:36 +02:00