Commit Graph

2564 Commits

Author SHA1 Message Date
Linus Torvalds
aea7c84f28 USB/Thunderbolt fixes for 7.0-rc7
Here are a bunch of USB and Thunderbolt fixes (most all are USB) for
 7.0-rc7.  More than I normally like this late in the release cycle,
 partly due to my recent travels, and partly due to people banging away
 on the USB gadget interfaces and apis more than normal (big shoutout to
 Android for getting the vendors to actually work upstream on this,
 that's a huge win overall for everyone here.)
 
 Included in here are:
   - Small thunderbolt fix
   - new USB serial driver ids added
   - typec driver fixes
   - gadget driver fixes for some disconnect issues
   - other usb gadget driver fixes for reported problems with binding and
     unbinding devices as happens when a gadget device connects /
     disconnects from a system it is plugged into (or it switches device
     mode at a user's request, these things are complex little beasts...)
   - usb offload fixes (where USB audio tunnels through the controller
     while the main CPU is asleep) for when EMP spikes hit the system
     causing disconnects to happen (as often happens with static
     electricity in the winter months).  This has been much reported by
     at least one vendor, and resolves the issues they have been seeing
     with this codepath.  Can't wait for the "formal methods are the
     answer!" people to try to model that one properly...
   - Other small usb driver fixes for issues reported.
 
 All of these have been in linux-next this week, and before, with no
 reported issues, and I've personally been stressing these harder than
 normal on my systems here with no problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/Thunderbolt fixes from Greg KH:
 "Here are a bunch of USB and Thunderbolt fixes (most all are USB) for
  7.0-rc7. More than I normally like this late in the release cycle,
  partly due to my recent travels, and partly due to people banging away
  on the USB gadget interfaces and apis more than normal (big shoutout
  to Android for getting the vendors to actually work upstream on this,
  that's a huge win overall for everyone here)

  Included in here are:
   - Small thunderbolt fix
   - new USB serial driver ids added
   - typec driver fixes
   - gadget driver fixes for some disconnect issues
   - other usb gadget driver fixes for reported problems with binding
     and unbinding devices as happens when a gadget device connects /
     disconnects from a system it is plugged into (or it switches device
     mode at a user's request, these things are complex little
     beasts...)
   - usb offload fixes (where USB audio tunnels through the controller
     while the main CPU is asleep) for when EMP spikes hit the system
     causing disconnects to happen (as often happens with static
     electricity in the winter months). This has been much reported by
     at least one vendor, and resolves the issues they have been seeing
     with this codepath. Can't wait for the "formal methods are the
     answer!" people to try to model that one properly...
   - Other small usb driver fixes for issues reported.

  All of these have been in linux-next this week, and before, with no
  reported issues, and I've personally been stressing these harder than
  normal on my systems here with no problems"

* tag 'usb-7.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (39 commits)
  usb: gadget: f_hid: move list and spinlock inits from bind to alloc
  usb: host: xhci-sideband: delegate offload_usage tracking to class drivers
  usb: core: use dedicated spinlock for offload state
  usb: cdns3: gadget: fix state inconsistency on gadget init failure
  usb: dwc3: imx8mp: fix memory leak on probe failure path
  usb: gadget: f_uac1_legacy: validate control request size
  usb: ulpi: fix double free in ulpi_register_interface() error path
  usb: misc: usbio: Fix URB memory leak on submit failure
  USB: core: add NO_LPM quirk for Razer Kiyo Pro webcam
  usb: cdns3: gadget: fix NULL pointer dereference in ep_queue
  usb: core: phy: avoid double use of 'usb3-phy'
  USB: serial: option: add MeiG Smart SRM825WN
  usb: gadget: f_rndis: Fix net_device lifecycle with device_move
  usb: gadget: f_subset: Fix net_device lifecycle with device_move
  usb: gadget: f_eem: Fix net_device lifecycle with device_move
  usb: gadget: f_ecm: Fix net_device lifecycle with device_move
  usb: gadget: u_ncm: Add kernel-doc comments for struct f_ncm_opts
  usb: gadget: f_rndis: Protect RNDIS options with mutex
  usb: gadget: f_subset: Fix unbalanced refcnt in geth_free
  dt-bindings: connector: add pd-disable dependency
  ...
2026-04-05 10:00:26 -07:00
Guan-Yu Lin
5abbe6ecc6 usb: host: xhci-sideband: delegate offload_usage tracking to class drivers
Remove usb_offload_get() and usb_offload_put() from the xHCI sideband
interrupter creation and removal paths.

The responsibility of manipulating offload_usage now lies entirely with
the USB class drivers. They have the precise context of when an offload
data stream actually starts and stops, ensuring a much more accurate
representation of offload activity for power management.

Cc: stable <stable@kernel.org>
Fixes: ef82a4803a ("xhci: sideband: add api to trace sideband usage")
Signed-off-by: Guan-Yu Lin <guanyulin@google.com>
Tested-by: Hailong Liu <hailong.liu@oppo.com>
Tested-by: hailong.liu@oppo.com
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://patch.msgid.link/20260401123238.3790062-3-guanyulin@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-04-02 09:43:30 +02:00
Geoffrey D. Bennett
a0dafdbd10 ALSA: usb-audio: Exclude Scarlett 2i2 1st Gen (8016) from SKIP_IFACE_SETUP
Same issue as the other 1st Gen Scarletts: QUIRK_FLAG_SKIP_IFACE_SETUP
causes distorted audio on this revision of the Scarlett 2i2 1st Gen
(1235:8016).

Fixes: 38c322068a ("ALSA: usb-audio: Add QUIRK_FLAG_SKIP_IFACE_SETUP")
Reported-by: lukas-reineke [https://github.com/geoffreybennett/linux-fcp/issues/54]
Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Link: https://patch.msgid.link/acytr8aEUba4VXmZ@m.b4.vu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-04-01 09:43:21 +02:00
Dag Smedberg
f025ac8c69 ALSA: usb-audio: Exclude Scarlett Solo 1st Gen from SKIP_IFACE_SETUP
Same issue that the Scarlett 2i2 1st Gen had:
QUIRK_FLAG_SKIP_IFACE_SETUP causes distorted audio on the
Scarlett Solo 1st Gen (1235:801c).

Fixes: 38c322068a ("ALSA: usb-audio: Add QUIRK_FLAG_SKIP_IFACE_SETUP")
Reported-by: Dag Smedberg <dag@dsmedberg.se>
Tested-by: Dag Smedberg <dag@dsmedberg.se>
Signed-off-by: Dag Smedberg <dag@dsmedberg.se>
Link: https://patch.msgid.link/20260329170420.4122-1-dag@dsmedberg.se
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-03-30 09:33:29 +02:00
Berk Cem Goksel
45424e871a ALSA: caiaq: fix stack out-of-bounds read in init_card
The loop creates a whitespace-stripped copy of the card shortname
where `len < sizeof(card->id)` is used for the bounds check. Since
sizeof(card->id) is 16 and the local id buffer is also 16 bytes,
writing 16 non-space characters fills the entire buffer,
overwriting the terminating nullbyte.

When this non-null-terminated string is later passed to
snd_card_set_id() -> copy_valid_id_string(), the function scans
forward with `while (*nid && ...)` and reads past the end of the
stack buffer, reading the contents of the stack.

A USB device with a product name containing many non-ASCII, non-space
characters (e.g. multibyte UTF-8) will reliably trigger this as follows:

  BUG: KASAN: stack-out-of-bounds in copy_valid_id_string
       sound/core/init.c:696 [inline]
  BUG: KASAN: stack-out-of-bounds in snd_card_set_id_no_lock+0x698/0x74c
       sound/core/init.c:718

The off-by-one has been present since commit bafeee5b1f ("ALSA:
snd_usb_caiaq: give better shortname") from June 2009 (v2.6.31-rc1),
which first introduced this whitespace-stripping loop. The original
code never accounted for the null terminator when bounding the copy.

Fix this by changing the loop bound to `sizeof(card->id) - 1`,
ensuring at least one byte remains as the null terminator.

Fixes: bafeee5b1f ("ALSA: snd_usb_caiaq: give better shortname")
Cc: stable@vger.kernel.org
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Reported-by: Berk Cem Goksel <berkcgoksel@gmail.com>
Signed-off-by: Berk Cem Goksel <berkcgoksel@gmail.com>
Link: https://patch.msgid.link/20260329133825.581585-1-berkcgoksel@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-03-30 09:31:35 +02:00
Phil Willoughby
bc5b4e5ae1 ALSA: usb-audio: Fix quirk flags for NeuralDSP Quad Cortex
The NeuralDSP Quad Cortex does not support DSD playback. We need
this product-specific entry with zero quirks because otherwise it
falls through to the vendor-specific entry which marks it as
supporting DSD playback.

Cc: Yue Wang <yuleopen@gmail.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Signed-off-by: Phil Willoughby <willerz@gmail.com>
Link: https://patch.msgid.link/20260328080921.3310-1-willerz@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-03-28 09:58:44 +01:00
Lianqin Hu
ee6c551a7d ALSA: usb-audio: Add iface reset and delay quirk for AB17X USB Audio
Setting up the interface when suspended/resumeing fail on this card.
Adding a reset and delay quirk will eliminate this problem.

usb 1-1: new full-speed USB device number 2 using xhci-hcd
usb 1-1: New USB device found, idVendor=001f, idProduct=0b23
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-1: Product: AB17X USB Audio
usb 1-1: Manufacturer: Generic
usb 1-1: SerialNumber: 20241228172028

Signed-off-by: Lianqin Hu <hulianqin@vivo.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/PUZPR06MB6224CA59AD2B26054120B276D249A@PUZPR06MB6224.apcprd06.prod.outlook.com
2026-03-27 10:50:57 +01:00
Geoffrey D. Bennett
990a8b0732 ALSA: usb-audio: Exclude Scarlett 2i4 1st Gen from SKIP_IFACE_SETUP
Same issue that the Scarlett 2i2 1st Gen had:
QUIRK_FLAG_SKIP_IFACE_SETUP causes distorted/flanging audio on the
Scarlett 2i4 1st Gen (1235:800a).

Fixes: 38c322068a ("ALSA: usb-audio: Add QUIRK_FLAG_SKIP_IFACE_SETUP")
Reported-by: dcferreira [https://github.com/geoffreybennett/linux-fcp/issues/54]
Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Link: https://patch.msgid.link/acEkEbftzyNe8W7C@m.b4.vu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-03-27 10:43:14 +01:00
Daniel Lezcano
8306a78a1c ALSA: usb-audio: qcom: Fix the license marking
The Copyright for Qualcomm changed its format and replaces the old
Qualcomm Innovative Center by Qualcomm Technology Inc.

Signed-off-by: Daniel Lezcano <daniel.lezcano@oss.qualcomm.com>
Link: https://patch.msgid.link/20260317180943.3062085-1-daniel.lezcano@oss.qualcomm.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-03-18 12:37:05 +01:00
Frank Zhang
b8bee48e38 ALSA:usb:qcom: add AUXILIARY_BUS to Kconfig dependencies
The build can fail with:

ERROR: modpost: "__auxiliary_driver_register"
[sound/usb/qcom/snd-usb-audio-qmi.ko] undefined!
ERROR: modpost: "auxiliary_driver_unregister"
[sound/usb/qcom/snd-usb-audio-qmi.ko] undefined!

Select AUXILIARY_BUS when SND_USB_AUDIO_QMI is enabled.

Signed-off-by: Frank Zhang <rmxpzlb@gmail.com>
Link: https://patch.msgid.link/20260317102527.556248-1-rmxpzlb@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-03-18 12:36:39 +01:00
Geoffrey D. Bennett
8780f561f6 ALSA: usb-audio: Exclude Scarlett 2i2 1st Gen from SKIP_IFACE_SETUP
The Focusrite Scarlett 2i2 1st Gen (1235:8006) produces
distorted/silent audio when QUIRK_FLAG_SKIP_IFACE_SETUP is active, as
that flag causes the feedback format to be detected as 17.15 instead
of 16.16.

Add a DEVICE_FLG entry for this device before the Focusrite VENDOR_FLG
entry so that it gets no quirk flags, overriding the vendor-wide
SKIP_IFACE_SETUP. This device doesn't have the internal mixer, Air, or
Safe modes that the quirk was designed to protect.

Fixes: 38c322068a ("ALSA: usb-audio: Add QUIRK_FLAG_SKIP_IFACE_SETUP")
Reported-by: pairomaniac [https://github.com/geoffreybennett/linux-fcp/issues/54]
Tested-by: pairomaniac [https://github.com/geoffreybennett/linux-fcp/issues/54]
Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Link: https://patch.msgid.link/abmsTjKmQMKbhYtK@m.b4.vu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-03-18 08:20:43 +01:00
Lianqin Hu
5182e5ec43 ALSA: usb-audio: Add iface reset and delay quirk for SPACETOUCH USB Audio
Setting up the interface when suspended/resumeing fail on this card.
Adding a reset and delay quirk will eliminate this problem.

usb 1-1: New USB device found, idVendor=0666, idProduct=0880
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-1: Product: USB Audio
usb 1-1: Manufacturer: SPACETOUCH
usb 1-1: SerialNumber: 000000000

Signed-off-by: Lianqin Hu <hulianqin@vivo.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/TYUPR06MB6217ACC80B70BE25D87456B0D247A@TYUPR06MB6217.apcprd06.prod.outlook.com
2026-03-11 09:05:27 +01:00
Takashi Iwai
df1d8abf36 ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces
The Scarlett2 mixer quirk in USB-audio driver may hit a NULL
dereference when a malformed USB descriptor is passed, since it
assumes the presence of an endpoint in the parsed interface in
scarlett2_find_fc_interface(), as reported by fuzzer.

For avoiding the NULL dereference, just add the sanity check of
bNumEndpoints and skip the invalid interface.

Reported-by: syzbot+8f29539ef9a1c8334f42@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/69acbbe1.050a0220.310d8.0001.GAE@google.com
Reported-by: syzbot+ae893a8901067fde2741@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/69acf72a.050a0220.310d8.0004.GAE@google.com
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20260309104632.141895-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-03-10 09:33:57 +01:00
Johan Hovold
3d543d9515 ALSA: us122l: drop redundant interface references
Driver core holds a reference to the USB interface and its parent USB
device while the interface is bound to a driver and there is no need to
take additional references unless the structures are needed after
disconnect.

Similarly, USB core holds a reference to all interfaces in the active
configuration so there is no need for a driver to take a reference to a
sibling interface only to release it at disconnect either.

Drop the redundant references to reduce cargo culting, make it easier to
spot drivers where extra references are needed, and reduce the risk of
memory leaks when drivers fail to release them.

Signed-off-by: Johan Hovold <johan@kernel.org>
Link: https://patch.msgid.link/20260305111810.18688-1-johan@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-03-05 14:00:55 +01:00
Lianqin Hu
bd72a37b21 ALSA: usb-audio: Add iface reset and delay quirk for AB13X USB Audio
Setting up the interface when suspended/resumeing fail on this card.
Adding a reset and delay quirk will eliminate this problem.

usb 1-1: New USB device found, idVendor=0624, idProduct=3d3f
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-1: Product: AB13X USB Audio
usb 1-1: Manufacturer: Generic
usb 1-1: SerialNumber: 20210726905926

Signed-off-by: Lianqin Hu <hulianqin@vivo.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/TYUPR06MB621795D087BF2D594027C235D273A@TYUPR06MB6217.apcprd06.prod.outlook.com
2026-02-28 09:27:02 +01:00
Takashi Iwai
dc9786a06d ALSA: us144mkii: Drop kernel-doc markers
We don't process this driver code for kernel-doc, and the "/**" marker
leads to warnings with W=1 builds.  Drop the superfluous markers, and
also fix the invalid mark up, too.

Link: https://patch.msgid.link/20260226155456.1092186-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-02-26 16:56:36 +01:00
Takashi Iwai
1d6452a0ce ALSA: usb: qcom: Correct parameter comment for uaudio_transfer_buffer_setup()
At fixing the memory leak of xfer buffer, we forgot to update the
corresponding comment, too.  This resulted in a kernel-doc warning
with W=1.  Let's correct it.

Fixes: 5c7ef50012 ("ALSA: qc_audio_offload: avoid leaking xfer_buf allocation")
Link: https://patch.msgid.link/20260226154414.1081568-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-02-26 16:51:32 +01:00
Takashi Iwai
3540cc453f ALSA: usb-audio: Drop superfluous kernel-doc markers
We don't process USB-audio driver code for kernel-doc, and the "/**"
marker leads to warnings with W=1 builds.  Drop the superfluous
markers.

Link: https://patch.msgid.link/20260226154414.1081568-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-02-26 16:51:32 +01:00
Jun Seo
54f9d645a5 ALSA: usb-audio: Use correct version for UAC3 header validation
The entry of the validators table for UAC3 AC header descriptor is
defined with the wrong protocol version UAC_VERSION_2, while it should
have been UAC_VERSION_3.  This results in the validator never matching
for actual UAC3 devices (protocol == UAC_VERSION_3), causing their
header descriptors to bypass validation entirely.  A malicious USB
device presenting a truncated UAC3 header could exploit this to cause
out-of-bounds reads when the driver later accesses unvalidated
descriptor fields.

The bug was introduced in the same commit as the recently fixed UAC3
feature unit sub-type typo, and appears to be from the same copy-paste
error when the UAC3 section was created from the UAC2 section.

Fixes: 57f8770620 ("ALSA: usb-audio: More validations of descriptor units")
Cc: <stable@vger.kernel.org>
Signed-off-by: Jun Seo <jun.seo.93@proton.me>
Link: https://patch.msgid.link/20260226010820.36529-1-jun.seo.93@proton.me
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-02-26 07:37:29 +01:00
Takashi Iwai
4e9113c533 ALSA: usb-audio: Use inclusive terms
Replace the remaining with inclusive terms; it's only this function
name we overlooked at the previous conversion.

Fixes: 53837b4ac2 ("ALSA: usb-audio: Replace slave/master terms")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20260225085233.316306-5-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-02-25 10:17:28 +01:00
Takashi Iwai
c5bf24c8ab ALSA: usb-audio: Avoid implicit feedback mode on DIYINHK USB Audio 2.0
Although DIYINHK USB Audio 2.0 (ID 20b1:2009) shows the implicit
feedback source for the capture stream, this would cause several
problems for the playback.  Namely, the device can get wMaxPackSize
1024 for 24/32 bit format with 6 channels, and when a high sample rate
like 352.8kHz or 384kHz is played, the packet size overflows the max
limit.  Also, the device has another two playback altsets, and those
aren't properly handled with the implicit feedback.

Since the device has been working well even before introducing the
implicit feedback, we can assume that it works fine in the async mode.
This patch adds the explicit skip of the implicit fb detection to make
the playback running in the async mode.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=221076
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20260225085233.316306-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-02-25 10:17:28 +01:00
Takashi Iwai
7cb2a5422f ALSA: usb-audio: Check max frame size for implicit feedback mode, too
When the packet sizes are taken from the capture stream in the
implicit feedback mode, the sizes might be larger than the upper
boundary defined by the descriptor.  As already done for other
transfer modes, we have to cap the sizes accordingly at sending,
otherwise this would lead to an error in USB core at submission of
URBs.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=221076
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20260225085233.316306-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-02-25 10:17:28 +01:00
Takashi Iwai
7fe8dec3f6 ALSA: usb-audio: Cap the packet size pre-calculations
We calculate the possible packet sizes beforehand for adaptive and
synchronous endpoints, but we didn't take care of the max frame size
for those pre-calculated values.  When a device or a bus limits the
packet size, a high sample rate or a high number of channels may lead
to the packet sizes that are larger than the given limit, which
results in an error from the USB core at submitting URBs.

As a simple workaround, just add the sanity checks of pre-calculated
packet sizes to have the upper boundary of ep->maxframesize.

Fixes: f0bd62b640 ("ALSA: usb-audio: Improve frames size computation")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=221076
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20260225085233.316306-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-02-25 10:17:27 +01:00
Geoffrey D. Bennett
0d58273be0 ALSA: usb-audio: Skip clock selector for Focusrite devices
Add QUIRK_FLAG_SKIP_CLOCK_SELECTOR for Focusrite devices.

During interface parsing, snd_usb_clock_find_source() reads the clock
selector value then writes it back unchanged. On Focusrite devices
this redundant write results in a ~300ms delay per altsetting, adding
~1.8s to probe time on a typical device with 6 altsettings.

Enabling SKIP_CLOCK_SELECTOR skips the redundant write-back.

Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/00e53ae0a508b41516b41833daa17823381a649c.1771594828.git.g@b4.vu
2026-02-23 09:57:10 +01:00
Geoffrey D. Bennett
38c322068a ALSA: usb-audio: Add QUIRK_FLAG_SKIP_IFACE_SETUP
Add a quirk flag to skip the usb_set_interface(),
snd_usb_init_pitch(), and snd_usb_init_sample_rate() calls in
__snd_usb_parse_audio_interface(). These are redundant with
snd_usb_endpoint_prepare() at stream-open time.

Enable the quirk for Focusrite devices, as init_sample_rate(rate_max)
sets 192kHz during probing, which disables the internal mixer and Air
and Safe modes.

Fixes: 16f1f83844 ("Revert "ALSA: usb-audio: Drop superfluous interface setup at parsing"")
Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/65a7909b15f9feb76c2a6f4f8814c240ddc50737.1771594828.git.g@b4.vu
2026-02-23 09:57:10 +01:00
Geoffrey D. Bennett
a8cc55bf81 ALSA: usb-audio: Remove VALIDATE_RATES quirk for Focusrite devices
Remove QUIRK_FLAG_VALIDATE_RATES for Focusrite. With the previous
commit, focusrite_valid_sample_rate() produces correct rate tables
without USB probing.

QUIRK_FLAG_VALIDATE_RATES sends SET_CUR requests for each rate (~25ms
each) and leaves the device at 192kHz. This is a problem because that
rate: 1) disables the internal mixer, so outputs are silent until an
application opens the PCM and sets a lower rate, and 2) the Air and
Safe modes get disabled.

Fixes: 5963e52621 ("ALSA: usb-audio: Enable rate validation for Scarlett devices")
Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/09b9c012024c998c4ca14bd876ef0dce0d0b6101.1771594828.git.g@b4.vu
2026-02-23 09:57:09 +01:00
Geoffrey D. Bennett
24d2d3c5f9 ALSA: usb-audio: Improve Focusrite sample rate filtering
Replace the bLength == 10 max_rate check in
focusrite_valid_sample_rate() with filtering that also examines the
bmControls VAL_ALT_SETTINGS bit.

When VAL_ALT_SETTINGS is readable, the device uses strict
per-altsetting rate filtering (only the highest rate pair for that
altsetting is valid). When it is not readable, all rates up to
max_rate are valid.

For devices without the bLength == 10 Format Type descriptor extension
but with VAL_ALT_SETTINGS readable and multiple altsettings (only seen
in Scarlett 18i8 3rd Gen playback), fall back to the Focusrite
convention: alt 1 = 48kHz, alt 2 = 96kHz, alt 3 = 192kHz.

This produces correct rate tables for all tested Focusrite devices
(all Scarlett 2nd, 3rd, and 4th Gen, Clarett+, and Vocaster) using
only USB descriptors, allowing QUIRK_FLAG_VALIDATE_RATES to be removed
for Focusrite in the next commit.

Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/7e18c1f393a6ecb6fc75dd867a2c4dbe135e3e22.1771594828.git.g@b4.vu
2026-02-23 09:57:09 +01:00
Geoffrey D. Bennett
1d24148336 ALSA: scarlett2: Fix DSP filter control array handling
scarlett2_add_dsp_ctls() was incorrectly storing the precomp and PEQ
filter coefficient control pointers into the precomp_flt_switch_ctls
and peq_flt_switch_ctls arrays instead of the intended targets
precomp_flt_ctls and peq_flt_ctls. Pass NULL instead, as the filter
coefficient control pointers are not used, and remove the unused
precomp_flt_ctls and peq_flt_ctls arrays from struct scarlett2_data.

Additionally, scarlett2_update_filter_values() was reading
dsp_input_count * peq_flt_count values for
SCARLETT2_CONFIG_PEQ_FLT_SWITCH, but the peq_flt_switch array is
indexed only by dsp_input_count (one switch per DSP input, not per
filter). Fix the read count.

Fixes: b64678eb4e ("ALSA: scarlett2: Add DSP controls")
Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Link: https://patch.msgid.link/86497b71db060677d97c38a6ce5f89bb3b25361b.1771581197.git.g@b4.vu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-02-23 09:51:55 +01:00
Kees Cook
189f164e57 Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses
Conversion performed via this Coccinelle script:

  // SPDX-License-Identifier: GPL-2.0-only
  // Options: --include-headers-for-types --all-includes --include-headers --keep-comments
  virtual patch

  @gfp depends on patch && !(file in "tools") && !(file in "samples")@
  identifier ALLOC = {kmalloc_obj,kmalloc_objs,kmalloc_flex,
 		    kzalloc_obj,kzalloc_objs,kzalloc_flex,
		    kvmalloc_obj,kvmalloc_objs,kvmalloc_flex,
		    kvzalloc_obj,kvzalloc_objs,kvzalloc_flex};
  @@

  	ALLOC(...
  -		, GFP_KERNEL
  	)

  $ make coccicheck MODE=patch COCCI=gfp.cocci

Build and boot tested x86_64 with Fedora 42's GCC and Clang:

Linux version 6.19.0+ (user@host) (gcc (GCC) 15.2.1 20260123 (Red Hat 15.2.1-7), GNU ld version 2.44-12.fc42) #1 SMP PREEMPT_DYNAMIC 1970-01-01
Linux version 6.19.0+ (user@host) (clang version 20.1.8 (Fedora 20.1.8-4.fc42), LLD 20.1.8) #1 SMP PREEMPT_DYNAMIC 1970-01-01

Signed-off-by: Kees Cook <kees@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-22 08:26:33 -08:00
Linus Torvalds
32a92f8c89 Convert more 'alloc_obj' cases to default GFP_KERNEL arguments
This converts some of the visually simpler cases that have been split
over multiple lines.  I only did the ones that are easy to verify the
resulting diff by having just that final GFP_KERNEL argument on the next
line.

Somebody should probably do a proper coccinelle script for this, but for
me the trivial script actually resulted in an assertion failure in the
middle of the script.  I probably had made it a bit _too_ trivial.

So after fighting that far a while I decided to just do some of the
syntactically simpler cases with variations of the previous 'sed'
scripts.

The more syntactically complex multi-line cases would mostly really want
whitespace cleanup anyway.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-21 20:03:00 -08:00
Linus Torvalds
323bbfcf1e Convert 'alloc_flex' family to use the new default GFP_KERNEL argument
This is the exact same thing as the 'alloc_obj()' version, only much
smaller because there are a lot fewer users of the *alloc_flex()
interface.

As with alloc_obj() version, this was done entirely with mindless brute
force, using the same script, except using 'flex' in the pattern rather
than 'objs*'.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-21 17:09:51 -08:00
Linus Torvalds
bf4afc53b7 Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
This was done entirely with mindless brute force, using

    git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
        xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'

to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.

Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.

For the same reason the 'flex' versions will be done as a separate
conversion.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2026-02-21 17:09:51 -08:00
Kees Cook
69050f8d6d treewide: Replace kmalloc with kmalloc_obj for non-scalar types
This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:

Single allocations:	kmalloc(sizeof(TYPE), ...)
are replaced with:	kmalloc_obj(TYPE, ...)

Array allocations:	kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with:	kmalloc_objs(TYPE, COUNT, ...)

Flex array allocations:	kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with:	kmalloc_flex(*PTR, FAM, COUNT, ...)

(where TYPE may also be *VAR)

The resulting allocations no longer return "void *", instead returning
"TYPE *".

Signed-off-by: Kees Cook <kees@kernel.org>
2026-02-21 01:02:28 -08:00
Linus Torvalds
bc1d4e705f sound fixes for 7.0-rc1
here are a bunch of updates, but there should be no big surprises;
 mostly device-specific quirks and fix-ups or non-code changes.
 
 - Quirks for ASoC AMD, HD-audio and USB-audio
 - Fixes in ASoC fsl, rockchip, renesas, aw codecs
 - Fixes for USB-audio packet handling in the implicit feedback mode
 - Updates of SPDX license IDs in some files
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Merge tag 'sound-fix-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Here are a bunch of updates, but there should be no big surprises;
  mostly device-specific quirks and fix-ups or non-code changes:

   - Quirks for ASoC AMD, HD-audio and USB-audio

   - Fixes in ASoC fsl, rockchip, renesas, aw codecs

   - Fixes for USB-audio packet handling in the implicit feedback mode

   - Updates of SPDX license IDs in some files"

* tag 'sound-fix-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (28 commits)
  ASoC: rockchip: i2s-tdm: Use param rate if not provided by set_sysclk
  ALSA: hda/hdmi: Add quirk for TUXEDO IBS14G6
  ASoC: dt-bindings: asahi-kasei,ak5558: Fix the supply names
  ASoC: dt-bindings: asahi-kasei,ak4458: Fix the supply names
  ASoC: dt-bindings: asahi-kasei,ak4458: set unevaluatedProperties:false
  ASoC: amd: amd_sdw: add machine driver quirk for Lenovo models
  ASoC: amd: acp: Add ACP7.0 match entries for Realtek parts
  ALSA: echoaudio: Add SPDX ids to some files
  ALSA: isa: Add SPDX id lines to some files
  ALSA: core: Add SPDX license id to files
  ASoC: tas2783A: add explicit port prepare handling
  ASoC: renesas: rz-ssi: Fix playback and capture
  ALSA: hda/realtek: Fix headset mic on ASUS Zenbook 14 UX3405MA
  ALSA: hda/conexant: Fix headphone jack handling on Acer Swift SF314
  ASoC: qcom: sm8250: Add quinary MI2S support
  ASoC: amd: yc: Add DMI quirk for ASUS Vivobook Pro 15X M6501RR
  ALSA: usb-audio: Avoid potentially repeated XRUN error messages
  ALSA: usb-audio: Add sanity check for OOB writes at silencing
  ALSA: usb-audio: Optimize the copy of packet sizes for implicit fb handling
  ALSA: usb-audio: Update the number of packets properly at receiving
  ...
2026-02-20 15:47:44 -08:00
Takashi Iwai
e98696edac ALSA: usb-audio: Avoid potentially repeated XRUN error messages
Some XRUN-related error messages may repeat themselves, because there
can be multiple pending packets.  Modify notify_xrun() function to
return whether it's being stopped or not, and show the error message
only once when the XRUN is actually handled.

Along with it, fix a typo of word package to packet in the error
message.

Link: https://patch.msgid.link/20260216141209.1849200-5-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-02-16 15:13:59 +01:00
Takashi Iwai
fba2105a15 ALSA: usb-audio: Add sanity check for OOB writes at silencing
At silencing the playback URB packets in the implicit fb mode before
the actual playback, we blindly assume that the received packets fit
with the buffer size.  But when the setup in the capture stream
differs from the playback stream (e.g. due to the USB core limitation
of max packet size), such an inconsistency may lead to OOB writes to
the buffer, resulting in a crash.

For addressing it, add a sanity check of the transfer buffer size at
prepare_silent_urb(), and stop the data copy if the received data
overflows.  Also, report back the transfer error properly from there,
too.

Note that this doesn't fix the root cause of the playback error
itself, but this merely covers the kernel Oops.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=221076
Link: https://patch.msgid.link/20260216141209.1849200-4-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-02-16 15:13:48 +01:00
Takashi Iwai
36adb51ac0 ALSA: usb-audio: Optimize the copy of packet sizes for implicit fb handling
We did manual copies over loop for the packet data update of the
implicit feedback, but this can be optimized with a simple memcpy().

Along with it, change the data type of snd_usb_packet_info struct to
align with other (from uint32_t to int).

No functional changes but only code optimizations.

Link: https://patch.msgid.link/20260216141209.1849200-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-02-16 15:13:35 +01:00
Takashi Iwai
cf044e4419 ALSA: usb-audio: Update the number of packets properly at receiving
At receiving the packets from the implicit feedback source, we didn't
update ctx->packets field but only the ctx->packet_size[] data.
In exceptional cases, this might lead to unexpectedly superfluous data
transfer (although this won't happen usually due to the nature of USB
isochronous transfer).  Fix it to update the field properly.

Link: https://patch.msgid.link/20260216141209.1849200-2-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-02-16 15:13:17 +01:00
Linus Torvalds
136114e0ab mm.git review status for linus..mm-nonmm-stable
Total patches:       107
 Reviews/patch:       1.07
 Reviewed rate:       67%
 
 - The 2 patch series "ocfs2: give ocfs2 the ability to reclaim
   suballocator free bg" from Heming Zhao saves disk space by teaching
   ocfs2 to reclaim suballocator block group space.
 
 - The 4 patch series "Add ARRAY_END(), and use it to fix off-by-one
   bugs" from Alejandro Colomar adds the ARRAY_END() macro and uses it in
   various places.
 
 - The 2 patch series "vmcoreinfo: support VMCOREINFO_BYTES larger than
   PAGE_SIZE" from Pnina Feder makes the vmcore code future-safe, if
   VMCOREINFO_BYTES ever exceeds the page size.
 
 - The 7 patch series "kallsyms: Prevent invalid access when showing
   module buildid" from Petr Mladek cleans up kallsyms code related to
   module buildid and fixes an invalid access crash when printing
   backtraces.
 
 - The 3 patch series "Address page fault in
   ima_restore_measurement_list()" from Harshit Mogalapalli fixes a
   kexec-related crash that can occur when booting the second-stage kernel
   on x86.
 
 - The 6 patch series "kho: ABI headers and Documentation updates" from
   Mike Rapoport updates the kexec handover ABI documentation.
 
 - The 4 patch series "Align atomic storage" from Finn Thain adds the
   __aligned attribute to atomic_t and atomic64_t definitions to get
   natural alignment of both types on csky, m68k, microblaze, nios2,
   openrisc and sh.
 
 - The 2 patch series "kho: clean up page initialization logic" from
   Pratyush Yadav simplifies the page initialization logic in
   kho_restore_page().
 
 - The 6 patch series "Unload linux/kernel.h" from Yury Norov moves
   several things out of kernel.h and into more appropriate places.
 
 - The 7 patch series "don't abuse task_struct.group_leader" from Oleg
   Nesterov removes the usage of ->group_leader when it is "obviously
   unnecessary".
 
 - The 5 patch series "list private v2 & luo flb" from Pasha Tatashin
   adds some infrastructure improvements to the live update orchestrator.
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Merge tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:

 - "ocfs2: give ocfs2 the ability to reclaim suballocator free bg" saves
   disk space by teaching ocfs2 to reclaim suballocator block group
   space (Heming Zhao)

 - "Add ARRAY_END(), and use it to fix off-by-one bugs" adds the
   ARRAY_END() macro and uses it in various places (Alejandro Colomar)

 - "vmcoreinfo: support VMCOREINFO_BYTES larger than PAGE_SIZE" makes
   the vmcore code future-safe, if VMCOREINFO_BYTES ever exceeds the
   page size (Pnina Feder)

 - "kallsyms: Prevent invalid access when showing module buildid" cleans
   up kallsyms code related to module buildid and fixes an invalid
   access crash when printing backtraces (Petr Mladek)

 - "Address page fault in ima_restore_measurement_list()" fixes a
   kexec-related crash that can occur when booting the second-stage
   kernel on x86 (Harshit Mogalapalli)

 - "kho: ABI headers and Documentation updates" updates the kexec
   handover ABI documentation (Mike Rapoport)

 - "Align atomic storage" adds the __aligned attribute to atomic_t and
   atomic64_t definitions to get natural alignment of both types on
   csky, m68k, microblaze, nios2, openrisc and sh (Finn Thain)

 - "kho: clean up page initialization logic" simplifies the page
   initialization logic in kho_restore_page() (Pratyush Yadav)

 - "Unload linux/kernel.h" moves several things out of kernel.h and into
   more appropriate places (Yury Norov)

 - "don't abuse task_struct.group_leader" removes the usage of
   ->group_leader when it is "obviously unnecessary" (Oleg Nesterov)

 - "list private v2 & luo flb" adds some infrastructure improvements to
   the live update orchestrator (Pasha Tatashin)

* tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (107 commits)
  watchdog/hardlockup: simplify perf event probe and remove per-cpu dependency
  procfs: fix missing RCU protection when reading real_parent in do_task_stat()
  watchdog/softlockup: fix sample ring index wrap in need_counting_irqs()
  kcsan, compiler_types: avoid duplicate type issues in BPF Type Format
  kho: fix doc for kho_restore_pages()
  tests/liveupdate: add in-kernel liveupdate test
  liveupdate: luo_flb: introduce File-Lifecycle-Bound global state
  liveupdate: luo_file: Use private list
  list: add kunit test for private list primitives
  list: add primitives for private list manipulations
  delayacct: fix uapi timespec64 definition
  panic: add panic_force_cpu= parameter to redirect panic to a specific CPU
  netclassid: use thread_group_leader(p) in update_classid_task()
  RDMA/umem: don't abuse current->group_leader
  drm/pan*: don't abuse current->group_leader
  drm/amd: kill the outdated "Only the pthreads threading model is supported" checks
  drm/amdgpu: don't abuse current->group_leader
  android/binder: use same_thread_group(proc->tsk, current) in binder_mmap()
  android/binder: don't abuse current->group_leader
  kho: skip memoryless NUMA nodes when reserving scratch areas
  ...
2026-02-12 12:13:01 -08:00
胡连勤
5a36d2bda9 ALSA: usb-audio: Add iface reset and delay quirk for GHW-123P
Setting up the interface when suspended/resumeing fail on this card.
Adding a reset and delay quirk will eliminate this problem.

usb 1-1: New USB device found, idVendor=0020, idProduct=0b21
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-1: Product: GHW-123P
usb 1-1: Manufacturer: Generic
usb 1-1: SerialNumber: 20210726905926

Signed-off-by: Lianqin Hu <hulianqin@vivo.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/TYUPR06MB62176831E47899AB98902012D260A@TYUPR06MB6217.apcprd06.prod.outlook.com
2026-02-12 08:36:09 +01:00
Qihang Guo
fe7cd89f0e ALSA: usb-audio: Add DSD support for iBasso DC04U
Vendor ID 0x0661 is assigned to Hamamatsu Photonics K.K.,
but is used by iBasso for iBasso DC04U (0x0661:0x0883),
which supports native DSD playback.

This patch adds QUIRK_FLAG_DSD_RAW for iBasso DC04U, enabling
native DSD playback (DSD_U32_BE). The change has been verified
on Arch Linux using mpd and pw-cat.

Signed-off-by: Qihang Guo <v-conet@outlook.com>
Link: https://patch.msgid.link/TYYPR01MB14098529E0BD900921BE6F42CF465A@TYYPR01MB14098.jpnprd01.prod.outlook.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-02-09 16:07:58 +01:00
Lianqin Hu
ac656d7d7c ALSA: usb-audio: Add iface reset and delay quirk for AB13X USB Audio
Setting up the interface when suspended/resumeing fail on this card.
Adding a reset and delay quirk will eliminate this problem.

usb 1-1: New USB device found, idVendor=001f, idProduct=0b21
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-1: Product: AB13X USB Audio
usb 1-1: Manufacturer: Generic
usb 1-1: SerialNumber: 20210926172016

Signed-off-by: Lianqin Hu <hulianqin@vivo.com>
Link: https://patch.msgid.link/TYUPR06MB6217522D0DB6E2C9DF46B56ED265A@TYUPR06MB6217.apcprd06.prod.outlook.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-02-09 10:18:06 +01:00
Takashi Iwai
86f17f37a1 Merge branch 'for-linus' into for-next
Pull 6.19-devel branch.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-02-08 17:38:37 +01:00
Sergey Shtylyov
124bdc6ecc ALSA: usb-audio: fix broken logic in snd_audigy2nx_led_update()
When the support for the Sound Blaster X-Fi Surround 5.1 Pro was added,
the existing logic for the X-Fi Surround 5.1 in snd_audigy2nx_led_put()
was broken due to missing *else* before the added *if*: snd_usb_ctl_msg()
became incorrectly called twice and an error from first snd_usb_ctl_msg()
call ignored.  As the added snd_usb_ctl_msg() call was totally identical
to the existing one for the "plain" X-Fi Surround 5.1, just merge those
two *if* statements while fixing the broken logic...

Found by Linux Verification Center (linuxtesting.org) with the Svace static
analysis tool.

Fixes: 7cdd8d7313 ("ALSA: usb-audio - Add support for USB X-Fi S51 Pro")
Signed-off-by: Sergey Shtylyov <s.shtylyov@auroraos.dev>
Link: https://patch.msgid.link/20260203161558.18680-1-s.shtylyov@auroraos.dev
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-02-03 18:13:46 +01:00
Jegor van Opdorp
7bb0dbf9fc ALSA: usb-audio: add mixer support for Focusrite Forte
Add mixer control support for the Focusrite Forte (USB ID 0x1235:0x8010),
an older USB audio interface that predates the Scarlett 2nd generation.

The Forte uses UAC2_CS_MEM (bRequest=0x03) for its input controls rather
than the standard UAC2_CS_CUR (0x01) used by Scarlett devices. This patch
adds Forte-specific control handlers that use the correct USB protocol.

Features implemented:
- Input source selection (Mic/Line/Inst) for both channels
- High pass filter switch
- 48V phantom power switch
- Phase invert switch
- Pad switch
- Preamp gain control (0-42 range, ~0-75dB)
- Matrix mixer controls (6 inputs x 4 outputs)
- Output volume and mute controls

The device is registered via mixer_quirks.c and uses the existing
mixer_scarlett.c infrastructure with Forte-specific additions.

Credit: This work builds on prior reverse-engineering by alastair-dm.

Link: https://github.com/alastair-dm/forte-mixer/wiki
Link: https://github.com/alastair-dm/forte-mixer
Link: https://github.com/jopdorp/forte-mixer
Signed-off-by: Jegor van Opdorp <jegorvanopdorp@gmail.com>
Link: https://patch.msgid.link/20260127081541.219669-1-jegorvanopdorp@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-01-27 09:58:50 +01:00
Takashi Iwai
70b4db7d25 ALSA: usb-audio: Use the right limit for PCM OOB check
The recent fix commit for addressing the OOB access of PCM URB data
buffer caused a regression on Behringer UMC2020HD device, resulting in
choppy sound.  The fix used ep->max_urb_frames for the upper limit
check, and this is no right value to be referred.

Use the actual buffer size (ctx->buffer_size) as the upper limit
instead, which also avoids the regression on the device above.

Fixes: ef5749ef8b ("ALSA: usb-audio: Prevent excessive number of frames")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=220997
Link: https://patch.msgid.link/20260121082025.718748-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-01-21 09:22:12 +01:00
Randy Dunlap
24c776355f kernel.h: drop hex.h and update all hex.h users
Remove <linux/hex.h> from <linux/kernel.h> and update all users/callers of
hex.h interfaces to directly #include <linux/hex.h> as part of the process
of putting kernel.h on a diet.

Removing hex.h from kernel.h means that 36K C source files don't have to
pay the price of parsing hex.h for the roughly 120 C source files that
need it.

This change has been build-tested with allmodconfig on most ARCHes.  Also,
all users/callers of <linux/hex.h> in the entire source tree have been
updated if needed (if not already #included).

Link: https://lkml.kernel.org/r/20251215005206.2362276-1-rdunlap@infradead.org
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Yury Norov (NVIDIA) <yury.norov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-01-20 19:44:19 -08:00
Berk Cem Goksel
930e69757b ALSA: usb-audio: Fix use-after-free in snd_usb_mixer_free()
When snd_usb_create_mixer() fails, snd_usb_mixer_free() frees
mixer->id_elems but the controls already added to the card still
reference the freed memory. Later when snd_card_register() runs,
the OSS mixer layer calls their callbacks and hits a use-after-free read.

Call trace:
  get_ctl_value+0x63f/0x820 sound/usb/mixer.c:411
  get_min_max_with_quirks.isra.0+0x240/0x1f40 sound/usb/mixer.c:1241
  mixer_ctl_feature_info+0x26b/0x490 sound/usb/mixer.c:1381
  snd_mixer_oss_build_test+0x174/0x3a0 sound/core/oss/mixer_oss.c:887
  ...
  snd_card_register+0x4ed/0x6d0 sound/core/init.c:923
  usb_audio_probe+0x5ef/0x2a90 sound/usb/card.c:1025

Fix by calling snd_ctl_remove() for all mixer controls before freeing
id_elems. We save the next pointer first because snd_ctl_remove()
frees the current element.

Fixes: 6639b6c236 ("[ALSA] usb-audio - add mixer control notifications")
Cc: stable@vger.kernel.org
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Signed-off-by: Berk Cem Goksel <berkcgoksel@gmail.com>
Link: https://patch.msgid.link/20260120102855.7300-1-berkcgoksel@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-01-20 12:43:55 +01:00
Lianqin Hu
49985bc466 ALSA: usb-audio: Add delay quirk for MOONDROP Moonriver2 Ti
Audio control requests that sets sampling frequency sometimes fail on
this card. Adding delay between control messages eliminates that problem.

usb 1-1: New USB device found, idVendor=2fc6, idProduct=f06b
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-1: Product: MOONDROP Moonriver2 Ti
usb 1-1: Manufacturer: MOONDROP
usb 1-1: SerialNumber: MOONDROP Moonriver2 Ti

Signed-off-by: Lianqin Hu <hulianqin@vivo.com>
Reviewed-by: Cryolitia PukNgae <cryolitia@uniontech.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/TYUPR06MB6217911EFC7E9224935FA507D28DA@TYUPR06MB6217.apcprd06.prod.outlook.com
2026-01-19 09:11:43 +01:00
Samasth Norway Ananda
6f5c69f72e ALSA: scarlett2: Fix buffer overflow in config retrieval
The scarlett2_usb_get_config() function has a logic error in the
endianness conversion code that can cause buffer overflows when
count > 1.

The code checks `if (size == 2)` where `size` is the total buffer size in
bytes, then loops `count` times treating each element as u16 (2 bytes).
This causes the loop to access `count * 2` bytes when the buffer only
has `size` bytes allocated.

Fix by checking the element size (config_item->size) instead of the
total buffer size. This ensures the endianness conversion matches the
actual element type.

Fixes: ac34df733d ("ALSA: usb-audio: scarlett2: Update get_config to do endian conversion")
Cc: stable@vger.kernel.org
Signed-off-by: Samasth Norway Ananda <samasth.norway.ananda@oracle.com>
Link: https://patch.msgid.link/20260117012706.1715574-1-samasth.norway.ananda@oracle.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-01-17 09:32:51 +01:00