mirror of
https://github.com/torvalds/linux
synced 2024-11-05 18:23:50 +00:00
0665886ad1
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> |
||
|---|---|---|
| .. | ||
| 6fire | ||
| bcd2000 | ||
| caiaq | ||
| hiface | ||
| line6 | ||
| misc | ||
| usx2y | ||
| card.c | ||
| card.h | ||
| clock.c | ||
| clock.h | ||
| endpoint.c | ||
| endpoint.h | ||
| format.c | ||
| format.h | ||
| helper.c | ||
| helper.h | ||
| implicit.c | ||
| implicit.h | ||
| Kconfig | ||
| Makefile | ||
| media.c | ||
| media.h | ||
| midi.c | ||
| midi.h | ||
| mixer.c | ||
| mixer.h | ||
| mixer_maps.c | ||
| mixer_quirks.c | ||
| mixer_quirks.h | ||
| mixer_s1810c.c | ||
| mixer_s1810c.h | ||
| mixer_scarlett.c | ||
| mixer_scarlett.h | ||
| mixer_scarlett_gen2.c | ||
| mixer_scarlett_gen2.h | ||
| mixer_us16x08.c | ||
| mixer_us16x08.h | ||
| pcm.c | ||
| pcm.h | ||
| power.c | ||
| power.h | ||
| proc.c | ||
| proc.h | ||
| quirks-table.h | ||
| quirks.c | ||
| quirks.h | ||
| stream.c | ||
| stream.h | ||
| usbaudio.h | ||
| validate.c | ||