usbvision_set_audio: can't write iopin register for audio switching
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] SMP KASAN
CPU: 0 PID: 3041 Comm: v4l_id Not tainted 5.3.0-rc7+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:usb_make_path include/linux/usb.h:914 [inline]
RIP: 0010:vidioc_querycap+0x11c/0x320 drivers/media/usb/usbvision/usbvision-video.c:460
Code: 80 3c 02 00 0f 85 03 02 00 00 4c 8b ad f0 17 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7d 48 4d 8d 45 04 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c7 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b
RSP: 0018:ffff8881cd42fa28 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff8881cd42fc18 RCX: 0000000000000000
RDX: 0000000000000009 RSI: 2e4c1f4252534d27 RDI: 0000000000000048
RBP: ffff8881c76e4200 R08: 0000000000000004 R09: fffffbfff0c90220
R10: fffffbfff0c9021f R11: ffffffff864810f8 R12: ffff8881c76e5a9c
R13: 0000000000000000 R14: ffff8881cd42fc48 R15: 0000000080050000
FS:  00007f45b544f700(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc2a61c378 CR3: 00000001cf958000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 v4l_querycap+0x121/0x340 drivers/media/v4l2-core/v4l2-ioctl.c:1058
 __video_do_ioctl+0x969/0xba0 drivers/media/v4l2-core/v4l2-ioctl.c:2878
 video_usercopy+0x446/0xf40 drivers/media/v4l2-core/v4l2-ioctl.c:3060
 v4l2_ioctl+0x1a2/0x220 drivers/media/v4l2-core/v4l2-dev.c:360
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:509 [inline]
 do_vfs_ioctl+0xd2d/0x1330 fs/ioctl.c:696
 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:713
 __do_sys_ioctl fs/ioctl.c:720 [inline]
 __se_sys_ioctl fs/ioctl.c:718 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:718
 do_syscall_64+0xb7/0x580 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f45b4f82347
Code: 90 90 90 48 8b 05 f1 fa 2a 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 90 90 90 90 90 90 90 90 90 90 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c1 fa 2a 00 31 d2 48 29 c2 64
RSP: 002b:00007ffe831e9958 EFLAGS: 00000202 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f45b4f82347
RDX: 00007ffe831e9960 RSI: 0000000080685600 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000400884
R13: 00007ffe831e9ab0 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace ec0768ce09138990 ]---
RIP: 0010:usb_make_path include/linux/usb.h:914 [inline]
RIP: 0010:vidioc_querycap+0x11c/0x320 drivers/media/usb/usbvision/usbvision-video.c:460
Code: 80 3c 02 00 0f 85 03 02 00 00 4c 8b ad f0 17 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7d 48 4d 8d 45 04 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c7 01 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b
RSP: 0018:ffff8881cd42fa28 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff8881cd42fc18 RCX: 0000000000000000
RDX: 0000000000000009 RSI: 2e4c1f4252534d27 RDI: 0000000000000048
RBP: ffff8881c76e4200 R08: 0000000000000004 R09: fffffbfff0c90220
R10: fffffbfff0c9021f R11: ffffffff864810f8 R12: ffff8881c76e5a9c
R13: 0000000000000000 R14: ffff8881cd42fc48 R15: 0000000080050000
FS:  00007f45b544f700(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc2a61c378 CR3: 00000001cf958000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400