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linux/sound/usb
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Takashi Iwai a54da4b787 ALSA: line6: Fix racy access to midibuf 
commit 15b7a03205 upstream.

There can be concurrent accesses to line6 midibuf from both the URB
completion callback and the rawmidi API access.  This could be a cause
of KMSAN warning triggered by syzkaller below (so put as reported-by
here).

This patch protects the midibuf call of the former code path with a
spinlock for avoiding the possible races.

Reported-by: syzbot+78eccfb8b3c9a85fc6c5@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/00000000000000949c061df288c5@google.com
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20240805130129.10872-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2024-08-19 05:45:43 +02:00
..
6fire ALSA: 6fire: fix control and bulk message timeouts 2021-11-18 19:15:54 +01:00
bcd2000 ALSA: bcd2000: Fix a UAF bug on the error path of probing 2022-08-17 14:22:46 +02:00
caiaq ALSA: caiaq: input: Add error handling for unsupported input methods in snd_usb_caiaq_input_init 2023-05-17 11:50:19 +02:00
hiface module: remove never implemented MODULE_SUPPORTED_DEVICE 2021-03-17 13:16:18 -07:00
line6 ALSA: line6: Fix racy access to midibuf 2024-08-19 05:45:43 +02:00
misc ALSA: ua101: fix division by zero at probe 2021-11-18 19:15:54 +01:00
usx2y ALSA: usx2y: fix spelling mistakes 2021-07-05 19:30:33 +02:00
card.c ALSA: usb-audio: Refcount multiple accesses on the single clock 2024-03-15 10:48:17 -04:00
card.h ALSA: usb-audio: Add new quirk FIXED_RATE for JBL Quantum810 Wireless 2024-03-15 10:48:19 -04:00
clock.c ALSA: usb-audio: Ignore clock selector errors for single connection 2024-03-01 13:21:45 +01:00
clock.h ALSA: usb-audio: Constify audioformat pointer references 2020-11-23 15:15:36 +01:00
endpoint.c ALSA: usb-audio: Fix wrong kfree issue in snd_usb_endpoint_free_all 2024-03-15 10:48:23 -04:00
endpoint.h ALSA: usb-audio: Add new quirk FIXED_RATE for JBL Quantum810 Wireless 2024-03-15 10:48:19 -04:00
format.c ALSA: usb-audio: Check presence of valid altsetting control 2024-03-01 13:21:45 +01:00
format.h ALSA: usb: initial USB Audio Device Class 3.0 support 2018-03-21 11:46:33 +01:00
helper.c ALSA: usb-audio: Add snd_usb_get_host_interface() helper 2020-11-23 15:13:47 +01:00
helper.h ALSA: usb-audio: Add snd_usb_get_host_interface() helper 2020-11-23 15:13:47 +01:00
implicit.c ALSA: usb-audio: Always initialize fixed_rate in snd_usb_find_implicit_fb_sync_format() 2024-03-15 10:48:23 -04:00
implicit.h ALSA: usb-audio: Add new quirk FIXED_RATE for JBL Quantum810 Wireless 2024-03-15 10:48:19 -04:00
Kconfig sound: Fix Kconfig indentation 2019-10-07 03:53:03 +02:00
Makefile ALSA: usb-audio: Factor out the implicit feedback quirk code 2020-11-23 15:17:00 +01:00
media.c ALSA: usb-audio: fix spelling mistakes 2021-07-05 19:33:54 +02:00
media.h media: sound/usb: Use Media Controller API to share media resources 2019-04-22 11:21:06 -04:00
midi.c ALSA: usb-audio: Drop snd_BUG_ON() from snd_usbmidi_output_open() 2022-11-26 09:24:43 +01:00
midi.h ALSA: usb-audio: generate midi streaming substream names from jack names 2021-03-01 09:21:54 +01:00
mixer.c ALSA: usb-audio: Fix microphone sound on HD webcam. 2024-08-19 05:45:15 +02:00
mixer.h ALSA: usb-audio: Unify mixer resume and reset_resume procedure 2021-09-13 15:00:31 +02:00
mixer_maps.c ALSA: usb-audio: More comprehensive mixer map for ASUS ROG Zenith II 2022-08-25 11:39:58 +02:00
mixer_quirks.c ALSA: usb-audio: Add Pioneer DJM-450 mixer controls 2023-12-13 18:36:42 +01:00
mixer_quirks.h ALSA: usb-audio: Initialize Dell Dock playback volumes 2018-05-02 16:02:32 +02:00
mixer_s1810c.c ALSA: usb-audio: fix spelling mistakes 2021-07-05 19:33:54 +02:00
mixer_s1810c.h ALSA: usb-audio: Add support for Presonus Studio 1810c 2020-02-15 09:46:16 +01:00
mixer_scarlett.c ALSA: usb-audio: fix spelling mistakes 2021-07-05 19:33:54 +02:00
mixer_scarlett.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mixer_scarlett_gen2.c ALSA: scarlett2: Add clamp() in scarlett2_mixer_ctl_put() 2024-01-25 14:52:45 -08:00
mixer_scarlett_gen2.h ALSA: usb-audio: scarlett2: Improve driver startup messages 2021-05-21 16:22:52 +02:00
mixer_us16x08.c ALSA: Convert strlcpy to strscpy when return value is unused 2021-01-08 09:30:05 +01:00
mixer_us16x08.h ALSA: usb: Constify snd_kcontrol_new items 2020-01-03 09:24:34 +01:00
pcm.c ALSA: usb-audio: Always initialize fixed_rate in snd_usb_find_implicit_fb_sync_format() 2024-03-15 10:48:23 -04:00
pcm.h ALSA: usb-audio: Add new quirk FIXED_RATE for JBL Quantum810 Wireless 2024-03-15 10:48:19 -04:00
power.c ALSA: usb-audio: More validations of descriptor units 2019-08-22 10:35:59 +02:00
power.h ALSA: usb-audio: Initial Power Domain support 2018-07-31 15:01:22 +02:00
proc.c ALSA: usb-audio: Show sync endpoint information in proc outputs 2020-11-23 15:16:45 +01:00
proc.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
quirks-table.h ALSA: usb-audio: Re-add ScratchAmp quirk entries 2024-08-19 05:45:43 +02:00
quirks.c ALSA: usb-audio: Add a quirk for Sonix HD USB Camera 2024-08-19 05:45:15 +02:00
quirks.h ALSA: usb-audio: Register card at the last interface 2022-10-26 12:35:39 +02:00
stream.c ALSA: usb-audio: Correct surround channels in UAC1 channel map 2024-08-19 05:45:33 +02:00
stream.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
usbaudio.h ALSA: usb-audio: Add new quirk FIXED_RATE for JBL Quantum810 Wireless 2024-03-15 10:48:19 -04:00
validate.c ALSA: usb-audio: Fix endianess in descriptor validation 2020-02-01 09:06:11 +01:00