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linux-st/sound/usb
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Takashi Iwai 0665886ad1 ALSA: usb-audio: Clear MIDI port active flag after draining 
When a rawmidi output stream is closed, it calls the drain at first,
then does trigger-off only when the drain returns -ERESTARTSYS as a
fallback.  It implies that each driver should turn off the stream
properly after the drain.  Meanwhile, USB-audio MIDI interface didn't
change the port->active flag after the drain.  This may leave the
output work picking up the port that is closed right now, which
eventually leads to a use-after-free for the already released rawmidi
object.

This patch fixes the bug by properly clearing the port->active flag
after the output drain.

Reported-by: syzbot+70e777a39907d6d5fd0a@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/00000000000011555605dceaff03@google.com
Link: https://lore.kernel.org/r/20220420130247.22062-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2022-04-20 15:13:45 +02:00
..
6fire
ALSA: 6fire: fix control and bulk message timeouts
2021-10-26 08:12:02 +02:00
bcd2000
…
caiaq
…
hiface
…
line6
ALSA: line6: fix control and interrupt message timeouts
2021-10-26 08:12:14 +02:00
misc
ALSA: ua101: fix division by zero at probe
2021-10-27 08:23:30 +02:00
usx2y
ALSA: Fix some typo
2021-12-06 10:04:05 +01:00
card.c
ALSA: usb-audio: Drop CONFIG_PM ifdefs
2021-12-06 10:19:40 +01:00
card.h
ALSA: usb-audio: Improved lowlatency playback support
2021-09-30 13:55:24 +02:00
clock.c
ALSA: usb-audio: fix null pointer dereference on pointer cs_desc
2021-10-26 08:05:23 +02:00
clock.h
…
endpoint.c
ALSA: usb-audio: Fix packet size calculation regression
2021-10-01 12:54:56 +02:00
endpoint.h
ALSA: usb-audio: Avoid killing in-flight URBs during draining
2021-09-30 13:55:26 +02:00
format.c
ALSA: usb-audio: Drop superfluous '0' in Presonus Studio 1810c's ID
2021-12-02 09:39:04 +01:00
format.h
…
helper.c
…
helper.h
…
implicit.c
ALSA: usb-audio: revert to IMPLICIT_FB_FIXED_DEV for M-Audio FastTrack Ultra
2022-02-14 09:45:02 +01:00
implicit.h
…
Kconfig
…
Makefile
…
media.c
ALSA: usb-audio: fix spelling mistakes
2021-07-05 19:33:54 +02:00
media.h
…
midi.c
ALSA: usb-audio: Clear MIDI port active flag after draining
2022-04-20 15:13:45 +02:00
midi.h
…
mixer_maps.c
ALSA: usb-audio: add mapping for MSI MAG X570S Torpedo MAX.
2022-04-19 09:02:33 +02:00
mixer_quirks.c
ALSA: usb-audio: Add mute TLV for playback volumes on RODE NT-USB
2022-03-12 08:50:43 +01:00
mixer_quirks.h
ALSA: usb-audio: Drop CONFIG_PM ifdefs
2021-12-06 10:19:40 +01:00
mixer_s1810c.c
ALSA: usb-audio: remove redundant assignment to variable c
2022-02-08 08:21:32 +01:00
mixer_s1810c.h
…
mixer_scarlett_gen2.c
ALSA: scarlett2: Add support for the internal "standalone" switch
2022-03-08 10:05:48 +01:00
mixer_scarlett_gen2.h
…
mixer_scarlett.c
ALSA: usb-audio: fix spelling mistakes
2021-07-05 19:33:54 +02:00
mixer_scarlett.h
…
mixer_us16x08.c
…
mixer_us16x08.h
…
mixer.c
ALSA: usb-audio: Don't abort resume upon errors
2022-02-14 13:57:51 +01:00
mixer.h
ALSA: usb-audio: Drop CONFIG_PM ifdefs
2021-12-06 10:19:40 +01:00
pcm.c
ALSA: usb-audio: Limit max buffer and period sizes per time
2022-04-13 09:10:56 +02:00
pcm.h
…
power.c
…
power.h
ALSA: usb-audio: Drop CONFIG_PM ifdefs
2021-12-06 10:19:40 +01:00
proc.c
…
proc.h
…
quirks-table.h
ALSA: usb-audio: Correct quirk for VF0770
2022-02-01 08:11:50 +01:00
quirks.c
ALSA: usb-audio: Drop superfluous '0' in Presonus Studio 1810c's ID
2021-12-02 09:39:04 +01:00
quirks.h
ALSA: usb-audio: Move interface setup delay into quirk_flags
2021-08-02 09:06:02 +02:00
stream.c
ALSA: usb-audio: Move tx_length quirk handling to quirk_flags
2021-08-02 09:05:57 +02:00
stream.h
…
usbaudio.h
ALSA: usb-audio: Fix undefined behavior due to shift overflowing the constant
2022-04-05 18:22:13 +02:00
validate.c
…