Hillf Danton 5d78e1c2b7 ALSA: usb-audio: Fix gpf in snd_usb_pipe_sanity_check ... syzbot found the following crash on: general protection fault: 0000 [#1] SMP KASAN RIP: 0010:snd_usb_pipe_sanity_check+0x80/0x130 sound/usb/helper.c:75 Call Trace: snd_usb_motu_microbookii_communicate.constprop.0+0xa0/0x2fb sound/usb/quirks.c:1007 snd_usb_motu_microbookii_boot_quirk sound/usb/quirks.c:1051 [inline] snd_usb_apply_boot_quirk.cold+0x163/0x370 sound/usb/quirks.c:1280 usb_audio_probe+0x2ec/0x2010 sound/usb/card.c:576 usb_probe_interface+0x305/0x7a0 drivers/usb/core/driver.c:361 really_probe+0x281/0x650 drivers/base/dd.c:548 .... It was introduced in commit 801ebf1043 for checking pipe and endpoint types. It is fixed by adding a check of the ep pointer in question. BugLink: https://syzkaller.appspot.com/bug?extid=d59c4387bfb6eced94e2 Reported-by: syzbot <syzbot+d59c4387bfb6eced94e2@syzkaller.appspotmail.com> Fixes: 801ebf1043 ("ALSA: usb-audio: Sanity checks for each pipe and EP types") Cc: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Hillf Danton <hdanton@sina.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>		2019-07-30 12:32:21 +02:00
..
6fire
bcd2000
caiaq
hiface
line6	ALSA: line6: Fix a typo	2019-07-22 09:10:54 +02:00
misc
usx2y
card.c
card.h
clock.c
clock.h
debug.h
endpoint.c
endpoint.h
format.c	ASoC: Updates for v5.3	2019-07-08 14:45:34 +02:00
format.h
helper.c	ALSA: usb-audio: Fix gpf in snd_usb_pipe_sanity_check	2019-07-30 12:32:21 +02:00
helper.h
Kconfig
Makefile
media.c
media.h
midi.c
midi.h
mixer_maps.c
mixer_quirks.c	ASoC: Updates for v5.3	2019-07-08 14:45:34 +02:00
mixer_quirks.h
mixer_scarlett.c
mixer_scarlett.h
mixer_us16x08.c
mixer_us16x08.h
mixer.c	ASoC: Updates for v5.3	2019-07-08 14:45:34 +02:00
mixer.h
pcm.c
pcm.h
power.c
power.h
proc.c
proc.h
quirks-table.h	ASoC: Updates for v5.3	2019-07-08 14:45:34 +02:00
quirks.c	ASoC: Updates for v5.3	2019-07-08 14:45:34 +02:00
quirks.h
stream.c
stream.h
usbaudio.h