kernel.git/sound/usb, branch master

ALSA: usb-audio: Add iface reset and delay quirk for SPACETOUCH USB Audio

2026-03-11T08:05:27Z

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 Signed-off-by: Takashi Iwai Link: https://patch.msgid.link/TYUPR06MB6217ACC80B70BE25D87456B0D247A@TYUPR06MB6217.apcprd06.prod.outlook.com

ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces

2026-03-10T08:33:57Z

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: Link: https://patch.msgid.link/20260309104632.141895-1-tiwai@suse.de Signed-off-by: Takashi Iwai

ALSA: us122l: drop redundant interface references

2026-03-05T13:00:55Z

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 Link: https://patch.msgid.link/20260305111810.18688-1-johan@kernel.org Signed-off-by: Takashi Iwai

ALSA: usb-audio: Add iface reset and delay quirk for AB13X USB Audio

2026-02-28T08:27:02Z

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 Signed-off-by: Takashi Iwai Link: https://patch.msgid.link/TYUPR06MB621795D087BF2D594027C235D273A@TYUPR06MB6217.apcprd06.prod.outlook.com

ALSA: us144mkii: Drop kernel-doc markers

2026-02-26T15:56:36Z

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

ALSA: usb: qcom: Correct parameter comment for uaudio_transfer_buffer_setup()

2026-02-26T15:51:32Z

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: 5c7ef5001292 ("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

ALSA: usb-audio: Drop superfluous kernel-doc markers

2026-02-26T15:51:32Z

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

ALSA: usb-audio: Use correct version for UAC3 header validation

2026-02-26T06:37:29Z

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: 57f8770620e9 ("ALSA: usb-audio: More validations of descriptor units") Cc: Signed-off-by: Jun Seo Link: https://patch.msgid.link/20260226010820.36529-1-jun.seo.93@proton.me Signed-off-by: Takashi Iwai

ALSA: usb-audio: Use inclusive terms

2026-02-25T09:17:28Z

Replace the remaining with inclusive terms; it's only this function name we overlooked at the previous conversion. Fixes: 53837b4ac2bd ("ALSA: usb-audio: Replace slave/master terms") Signed-off-by: Takashi Iwai Link: https://patch.msgid.link/20260225085233.316306-5-tiwai@suse.de Signed-off-by: Takashi Iwai

ALSA: usb-audio: Avoid implicit feedback mode on DIYINHK USB Audio 2.0

2026-02-25T09:17:28Z

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 Link: https://patch.msgid.link/20260225085233.316306-4-tiwai@suse.de Signed-off-by: Takashi Iwai