I rebuilt the snd-usb-audio module with the linked patch and it does indeed fix the problem for me. The patch addresses bugs that make all USB audio devices totally unusable, and is a definite regression in 5.10.0-1017.18:
1. For devices with no quirks, you get a null pointer dereference when you connect it. 2. For devices with quirks, you get a use-after-free when you disconnect it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1920648 Title: usb_audio_probe null ptr deref To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-oem-5.10/+bug/1920648/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
