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linux-stable/sound/core
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Takashi Iwai b2ce0027d7 ALSA: rawmidi: Fix NULL dereference at proc read 
At the implementation of the optional proc fs in rawmidi, I forgot
that rmidi->ops itself is optional and can be NULL.
Add the proper NULL check for avoiding the Oops.

Fixes: fa030f666d ("ALSA: ump: Additional proc output")
Reported-and-tested-by: Mark Hills <mark@xwax.org>
Closes: https://lore.kernel.org/r/ef9118c3-a2eb-d0ff-1efa-cc5fb6416bde@xwax.org
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230916060725.11726-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
 		2023-09-16 08:08:05 +02:00
..
oss ALSA: control: Introduce unlocked version for snd_ctl_find_*() helpers 2023-07-20 10:03:00 +02:00
seq ALSA: seq: midi: Fix -Wformat-truncation warning 2023-09-15 13:21:30 +02:00
Kconfig ALSA: ump: Add legacy raw MIDI support 2023-05-23 12:11:09 +02:00
Makefile ALSA: ump: Add legacy raw MIDI support 2023-05-23 12:11:09 +02:00
compress_offload.c ALSA: compress: Don't embed device 2023-08-17 09:24:15 +02:00
control.c ALSA: control: Don't embed ctl_dev 2023-08-17 09:23:30 +02:00
control_compat.c ALSA: control: Introduce unlocked version for snd_ctl_find_*() helpers 2023-07-20 10:03:00 +02:00
control_led.c ALSA: control: Don't embed ctl_dev 2023-08-17 09:23:30 +02:00
ctljack.c ALSA: Convert strlcpy to strscpy when return value is unused 2021-01-08 09:30:05 +01:00
device.c ALSA: core: Fix missing return value comments for kernel docs 2022-07-13 13:42:38 +02:00
hrtimer.c ALSA: timer: Replace tasklet with work 2020-09-09 18:32:52 +02:00
hwdep.c ALSA: hwdep: Don't embed device 2023-08-17 09:24:01 +02:00
hwdep_compat.c ALSA: compat_ioctl: avoid compat_alloc_user_space 2020-09-21 10:37:07 +02:00
info.c ALSA: info: Fix llseek return value when using callback 2022-08-17 15:13:30 +02:00
info_oss.c ALSA: oss: remove useless NULL check before kfree 2021-12-06 10:08:13 +01:00
init.c ALSA: core: Use dev_name of card_dev as debugfs directory name 2023-09-12 15:30:37 +02:00
isadma.c sound updates for 6.0-rc1 2022-08-06 10:19:51 -07:00
jack.c ALSA: control: Take controls_rwsem lock in snd_ctl_remove() 2023-07-20 10:01:27 +02:00
memalloc.c ALSA: memalloc: Workaround for Xen PV 2023-01-27 09:16:24 +01:00
memalloc_local.h ALSA: memalloc: remove snd_dma_sg_ops declaration 2022-09-09 09:09:40 +02:00
memory.c ALSA: core: Add memory copy helpers between iov_iter and iomem 2023-08-18 12:18:16 +02:00
misc.c ALSA: core: Add async signal helpers 2022-07-29 12:57:10 +02:00
pcm.c ALSA: pcm: Don't embed device 2023-08-17 09:23:45 +02:00
pcm_compat.c ALSA: pcm: Fix missing fixup call in compat hw_refine ioctl 2023-08-29 16:03:11 +02:00
pcm_dmaengine.c ALSA: dmaengine: increment buffer pointer atomically 2022-09-27 08:55:05 +02:00
pcm_drm_eld.c ALSA: pcm: fix ELD constraints for (E)AC3, DTS(-HD) and MLP formats 2023-06-25 08:42:53 +02:00
pcm_iec958.c ALSA: iec958: Split status creation and fill 2021-06-08 17:05:41 +02:00
pcm_lib.c ALSA: pcm: Fix error checks of default read/write copy ops 2023-09-02 08:11:48 +02:00
pcm_local.h ALSA: pcm: Revert "ALSA: pcm: rewrite snd_pcm_playback_silence()" 2023-05-05 18:23:48 +02:00
pcm_memory.c ALSA: pcm: Fix potential data race at PCM memory allocation helpers 2023-07-03 14:52:27 +02:00
pcm_misc.c ALSA: pcm: Test for "silence" field in struct "pcm_format_data" 2022-04-11 09:27:56 +02:00
pcm_native.c ALSA: pcm: Drop obsoleted PCM copy_user and copy_kernel ops 2023-08-18 12:19:19 +02:00
pcm_param_trace.h
…
pcm_timer.c ALSA: timer: Constify snd_timer_hardware definitions 2020-01-03 09:24:07 +01:00
pcm_trace.h ALSA: pcm: fix tracing reason in hw_ptr_error 2022-11-28 14:55:41 +01:00
rawmidi.c ALSA: rawmidi: Fix NULL dereference at proc read 2023-09-16 08:08:05 +02:00
rawmidi_compat.c ALSA: rawmidi: UMP support 2023-05-23 12:10:54 +02:00
seq_device.c ALSA: seq: Fix a potential UAF by wrong private_free call order 2021-09-30 14:13:22 +02:00
sound.c ALSA: core: Fix assignment in if condition 2021-06-09 17:30:22 +02:00
sound_oss.c ALSA: oss: Fix potential deadlock at unregistration 2022-10-11 09:02:43 +02:00
timer.c ALSA: timer: Create device with snd_device_alloc() 2023-08-17 09:24:21 +02:00
timer_compat.c ALSA: Convert strlcpy to strscpy when return value is unused 2021-01-08 09:30:05 +01:00
ump.c ALSA: ump: Fix -Wformat-truncation warnings 2023-08-26 09:22:18 +02:00
ump_convert.c ALSA: ump: Correct wrong byte size at converting a UMP System message 2023-06-28 11:44:30 +02:00
vmaster.c ALSA: vmaster: Add snd_ctl_add_followers() helper 2023-07-21 09:37:47 +02:00