Backtrace

WARNING: CPU: 6 PID: 3713 at block/blk-mq.c:3075 blk_mq_release+0x44/0xf0
Modules linked in: nbd(+) vfio_iommu_type1 vfio vhost_vsock vmw_vsock_virtio_transport_common vsock nft_objref vhost_scsi target_core_mod vhost_net tun tap vhost vhost_iotlb nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_tables ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) bnep sunrpc vfat fat squashfs loop elan_i2c iTCO_wdt intel_pmc_bxt iTCO_vendor_support snd_sof_pci_intel_cnl mei_hdcp mei_wdt snd_sof_intel_hda_common soundwire_intel soundwire_generic_allocation soundwire_cadence snd_sof_intel_hda snd_sof_pci intel_rapl_msr snd_sof_xtensa_dsp intel_tcc_cooling snd_sof
 x86_pkg_temp_thermal intel_powerclamp coretemp snd_soc_skl kvm_intel snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match kvm snd_soc_acpi snd_hda_codec_hdmi iwlmvm irqbypass rapl snd_ctl_led snd_soc_core intel_cstate snd_hda_codec_realtek intel_uncore snd_hda_codec_generic snd_compress mac80211 snd_pcm_dmaengine ac97_bus snd_hda_intel intel_wmi_thunderbolt wmi_bmof snd_intel_dspcfg snd_intel_sdw_acpi pcspkr snd_hda_codec snd_usb_audio snd_hda_core thunderbolt i2c_i801 snd_usbmidi_lib btusb i2c_smbus libarc4 snd_hwdep btrtl uvcvideo snd_rawmidi btbcm snd_seq btintel videobuf2_vmalloc joydev videobuf2_memops snd_seq_device bluetooth videobuf2_v4l2 iwlwifi videobuf2_common snd_pcm uas videodev usb_storage snd_timer ecdh_generic mc cfg80211 ecc mei_me processor_thermal_device processor_thermal_rfim mei thinkpad_acpi ucsi_acpi processor_thermal_mbox platform_profile processor_thermal_rapl typec_ucsi intel_rapl_common ledtrig_audio
 intel_soc_dts_iosf typec intel_pch_thermal snd soundcore int3403_thermal rfkill int340x_thermal_zone int3400_thermal acpi_thermal_rel acpi_pad binfmt_misc zram ip_tables dm_crypt trusted asn1_encoder hid_logitech_hidpp hid_logitech_dj i915 i2c_algo_bit drm_kms_helper crct10dif_pclmul sdhci_pci cec cqhci crc32_pclmul drm sdhci crc32c_intel nvme serio_raw e1000e nvme_core mmc_core ghash_clmulni_intel wmi video pinctrl_cannonlake r8152 mii fuse i2c_dev
CPU: 6 PID: 3713 Comm: modprobe Tainted: G           OE     5.13.19-200.fc34.x86_64 #1
Hardware name: LENOVO 20NYS41L0B/20NYS41L0B, BIOS N2JET93W (1.71 ) 11/04/2020
RIP: 0010:blk_mq_release+0x44/0xf0
Code: 48 31 d2 eb 07 83 c2 01 39 f2 74 27 48 63 c2 48 8b 04 c7 48 85 c0 74 ed 48 8b 88 30 02 00 00 48 05 30 02 00 00 48 39 c1 75 db <0f> 0b 83 c2 01 39 f2 75 d9 49 8b ac 24 90 05 00 00 4d 8d b4 24 90
RSP: 0018:ffff9694c27efcd8 EFLAGS: 00010246
RAX: ffff897486130230 RBX: ffff897486178080 RCX: ffff897486130230
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff89747d4e7d00
RBP: 0000000000000001 R08: ffff897482fd2c00 R09: 0000000000000000
R10: 0000000000000291 R11: 000000000000028c R12: ffff897486178000
R13: 0000000000000000 R14: 0000000000000000 R15: ffff9694c27efe80
FS:  00007f775139c680(0000) GS:ffff8977b2580000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffbd5a9aff0 CR3: 000000013ff16006 CR4: 00000000003706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 blk_release_queue+0xb4/0x140
 kobject_put+0x83/0x1d0
 disk_release+0x61/0x80
 device_release+0x31/0x90
 kobject_put+0x83/0x1d0
 nbd_dev_add+0x24f/0x2a0 [nbd]
 ? 0xffffffffc166d000
 nbd_init+0x116/0x1000 [nbd]
 do_one_initcall+0x41/0x1d0
 ? kmem_cache_alloc_trace+0x137/0x220
 do_init_module+0x5c/0x270
 __do_sys_init_module+0x11d/0x180
 do_syscall_64+0x3d/0x80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f77514e8cbe
Code: 48 8b 0d d5 81 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 af 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a2 81 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffe479a3c98 EFLAGS: 00000246 ORIG_RAX: 00000000000000af
RAX: ffffffffffffffda RBX: 00005645931303c0 RCX: 00007f77514e8cbe
RDX: 00005645913ee358 RSI: 0000000000017de6 RDI: 000056459393c9b0
RBP: 000056459393c9b0 R08: 0000000000000001 R09: 00007ffe479a3936
R10: 0000000000000002 R11: 0000000000000246 R12: 00005645913ee358
R13: 0000000000000000 R14: 000056459312ef60 R15: 00005645931303c0