VFIO kernel oops

Jun  2 17:43:16 livingroom kernel: [  138.202500] vfio-pci 0000:01:00.0: vgaarb: changed VGA decodes: olddecodes=none,decodes=none:owns=io+mem
Jun  2 17:43:17 livingroom kernel: [  138.519329] BUG: unable to handle kernel NULL pointer dereference at 0000000000000501
Jun  2 17:43:17 livingroom kernel: [  138.519332] #PF error: [normal kernel read fault]
Jun  2 17:43:17 livingroom kernel: [  138.519333] PGD 0 P4D 0
Jun  2 17:43:17 livingroom kernel: [  138.519335] Oops: 0000 [#1] PREEMPT SMP NOPTI
Jun  2 17:43:17 livingroom kernel: [  138.519336] CPU: 11 PID: 1499 Comm: kworker/11:3 Tainted: P           OE     5.0.0-15-lowlatency #16-Ubuntu
Jun  2 17:43:17 livingroom kernel: [  138.519338] Hardware name: Gigabyte Technology Co., Ltd. Z390 AORUS ULTRA/Z390 AORUS ULTRA-CF, BIOS F7 03/14/2019
Jun  2 17:43:17 livingroom kernel: [  138.519342] Workqueue: events snd_hdac_bus_process_unsol_events [snd_hda_core]
Jun  2 17:43:17 livingroom kernel: [  138.519345] RIP: 0010:update_eld+0x31/0x4f0 [snd_hda_codec_hdmi]
Jun  2 17:43:17 livingroom kernel: [  138.519346] Code: 89 e5 41 57 49 89 ff 41 56 41 55 41 54 49 89 d4 53 48 89 f3 48 83 ec 28 4c 8b b7 28 04 00 00 0f b6 46 61 4c 63 ae b0 03 00 00 <41> 80 be 01 05 00 00 00 88 45 d7 0f b6 42 01 0f 84 15 01 00 00 84
Jun  2 17:43:17 livingroom kernel: [  138.519348] RSP: 0018:ffffa598082efd50 EFLAGS: 00010286
Jun  2 17:43:17 livingroom kernel: [  138.519349] RAX: 0000000000000000 RBX: ffff9106319523d8 RCX: 0000000000080000
Jun  2 17:43:17 livingroom kernel: [  138.519350] RDX: ffff91063ea35208 RSI: ffff9106319523d8 RDI: ffff91063ade4800
Jun  2 17:43:17 livingroom kernel: [  138.519352] RBP: ffffa598082efda0 R08: 0000000000000000 R09: 0000000000000027
Jun  2 17:43:17 livingroom kernel: [  138.519353] R10: 0000000000000000 R11: 0000000000000001 R12: ffff91063ea35208
Jun  2 17:43:17 livingroom kernel: [  138.519354] R13: 0000000000000001 R14: 0000000000000000 R15: ffff91063ade4800
Jun  2 17:43:17 livingroom kernel: [  138.519355] FS:  0000000000000000(0000) GS:ffff91064e2c0000(0000) knlGS:0000000000000000
Jun  2 17:43:17 livingroom kernel: [  138.519356] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jun  2 17:43:17 livingroom kernel: [  138.519357] CR2: 0000000000000501 CR3: 000000070580e001 CR4: 00000000003606e0
Jun  2 17:43:17 livingroom kernel: [  138.519359] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Jun  2 17:43:17 livingroom kernel: [  138.519360] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Jun  2 17:43:17 livingroom kernel: [  138.519361] Call Trace:
Jun  2 17:43:17 livingroom kernel: [  138.519364]  ? snd_hdmi_parse_eld+0x129/0x370 [snd_hda_codec_hdmi]
Jun  2 17:43:17 livingroom kernel: [  138.519366]  hdmi_present_sense+0x2a1/0x380 [snd_hda_codec_hdmi]
Jun  2 17:43:17 livingroom kernel: [  138.519368]  check_presence_and_report+0x88/0xc0 [snd_hda_codec_hdmi]
Jun  2 17:43:17 livingroom kernel: [  138.519370]  hdmi_unsol_event+0x68/0x120 [snd_hda_codec_hdmi]
Jun  2 17:43:17 livingroom kernel: [  138.519373]  hda_codec_unsol_event+0x1a/0x20 [snd_hda_codec]
Jun  2 17:43:17 livingroom kernel: [  138.519375]  snd_hdac_bus_process_unsol_events+0x66/0x80 [snd_hda_core]
Jun  2 17:43:17 livingroom kernel: [  138.519378]  process_one_work+0x206/0x440
Jun  2 17:43:17 livingroom kernel: [  138.519380]  worker_thread+0x34/0x3f0
Jun  2 17:43:17 livingroom kernel: [  138.519381]  kthread+0x120/0x140
Jun  2 17:43:17 livingroom kernel: [  138.519383]  ? process_one_work+0x440/0x440
Jun  2 17:43:17 livingroom kernel: [  138.519384]  ? kthread_create_on_node+0x60/0x60
Jun  2 17:43:17 livingroom kernel: [  138.519386]  ret_from_fork+0x35/0x40
Jun  2 17:43:17 livingroom kernel: [  138.519388] Modules linked in: xt_nat veth vxlan ip6_udp_tunnel udp_tunnel xt_mark nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype br_netfilter xt_CHECKSUM ipt_MASQUERADE xt_conntrack bridge stp llc devlink ip6table_mangle ip6table_nat nf_nat_ipv6 iptable_mangle iptable_nat nf_nat_ipv4 nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c ebtable_filter ebtables ip6t_REJECT nf_reject_ipv6 ipt_REJECT nf_reject_ipv4 xt_tcpudp xt_owner aufs ip6table_filter ip6_tables iptable_filter bpfilter overlay cmac bnep binfmt_misc nls_iso8859_1 snd_hda_codec_hdmi snd_soc_skl snd_hda_codec_realtek snd_soc_hdac_hda snd_hda_codec_generic snd_hda_ext_core ledtrig_audio snd_soc_skl_ipc snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core snd_compress ac97_bus snd_pcm_dmaengine snd_hda_intel snd_hda_codec arc4 snd_hda_core snd_hwdep snd_pcm snd_seq_midi intel_rapl snd_seq_midi_event x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel snd_rawmidi wl(POE)
Jun  2 17:43:17 livingroom kernel: [  138.519403]  ath9k crct10dif_pclmul ucsi_ccg snd_seq ath9k_common crc32_pclmul ath9k_hw snd_seq_device typec_ucsi wmi_bmof iwlmvm typec snd_timer ghash_clmulni_intel joydev input_leds ath btusb btrtl mac80211 aesni_intel btbcm btintel iwlwifi snd bluetooth aes_x86_64 crypto_simd cryptd glue_helper intel_cstate mei_me intel_wmi_thunderbolt mxm_wmi intel_rapl_perf ecdh_generic soundcore mei cfg80211 intel_pch_thermal mac_hid acpi_pad nvidia_uvm(OE) sch_fq_codel vfio_pci vfio_virqfd parport_pc ppdev lp parport ip_tables x_tables autofs4 hid_generic usbhid hid nvidia_drm(POE) nvidia_modeset(POE) nvidia(POE) i915 kvmgt vfio_mdev mdev vfio_iommu_type1 vfio kvm irqbypass i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ipmi_devintf hpsa ahci e1000e drm i2c_i801 scsi_transport_sas libahci ipmi_msghandler i2c_nvidia_gpu wmi video pinctrl_cannonlake pinctrl_intel
Jun  2 17:43:17 livingroom kernel: [  138.519434] CR2: 0000000000000501
Jun  2 17:43:17 livingroom kernel: [  138.519435] ---[ end trace e9dbe8a4cd0d6f01 ]---