Backtrace

WARNING: CPU: 3 PID: 177401 at block/blk-mq.c:3075 blk_mq_release+0x44/0xf0
Modules linked in: nbd(+) rfcomm snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc tun nft_objref 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 bnep sunrpc vfat fat dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua intel_rapl_msr mei_wdt mei_hdcp ppdev iTCO_wdt intel_pmc_bxt iTCO_vendor_support pktcdvd intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass rapl intel_cstate intel_uncore uvcvideo btusb videobuf2_vmalloc btrtl btbcm btintel videobuf2_memops
 videobuf2_v4l2 bluetooth hp_wmi platform_profile sparse_keymap videobuf2_common snd_hda_codec_hdmi wmi_bmof pcspkr joydev videodev wl(POE) snd_ctl_led snd_hda_codec_idt ecdh_generic snd_hda_codec_generic ecc ledtrig_audio cfg80211 mc snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec snd_hda_core snd_hwdep snd_seq snd_seq_device rfkill snd_pcm snd_timer lpc_ich snd soundcore mei_me mei parport_pc parport tpm_infineon hp_accel lis3lv02d hp_wireless binfmt_misc vhba(OE) zram ip_tables i915 hid_logitech_hidpp crct10dif_pclmul crc32_pclmul crc32c_intel i2c_algo_bit ghash_clmulni_intel sdhci_pci drm_kms_helper cqhci sdhci firewire_ohci mmc_core firewire_core serio_raw cec e1000e drm crc_itu_t hid_logitech_dj wmi video fuse
CPU: 3 PID: 177401 Comm: modprobe Tainted: P          IOE     5.13.19-200.fc34.x86_64 #1
Hardware name: Hewlett-Packard HP EliteBook 8570p/17A7, BIOS 68ICF Ver. F.74 04/11/2019
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:ffffbf5fc14efcd8 EFLAGS: 00010246
RAX: ffff9dff03ed0230 RBX: ffff9e000a567790 RCX: ffff9dff03ed0230
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff9e0002e7a6c8
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000200 R11: 0000000000000001 R12: ffff9e000a567710
R13: 0000000000000000 R14: 0000000000000000 R15: ffffbf5fc14efe80
FS:  00007f1b3b745b80(0000) GS:ffff9e0136ac0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff3312edff0 CR3: 0000000105bfa005 CR4: 00000000001706e0
Call Trace:
 blk_release_queue+0xb4/0x140
 kobject_put+0x86/0x1d0
 disk_release+0x61/0x80
 device_release+0x34/0x90
 kobject_put+0x86/0x1d0
 nbd_dev_add+0x24f/0x2a0 [nbd]
 ? 0xffffffffc141b000
 nbd_init+0x116/0x1000 [nbd]
 do_one_initcall+0x44/0x1d0
 ? kmem_cache_alloc_trace+0x137/0x220
 do_init_module+0x5c/0x270
 __do_sys_init_module+0x11d/0x180
 do_syscall_64+0x40/0x80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f1b3b8720fe
Code: 48 8b 0d 7d 1d 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 4a 1d 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffcd15b8f08 EFLAGS: 00000246 ORIG_RAX: 00000000000000af
RAX: ffffffffffffffda RBX: 000056263a41bb70 RCX: 00007f1b3b8720fe
RDX: 000056263a200a2a RSI: 0000000000017de6 RDI: 000056263a42a900
RBP: 000056263a42a900 R08: 000056263a41bf10 R09: 00007ffcd15b6b96
R10: 000000056263a41b R11: 0000000000000246 R12: 000056263a200a2a
R13: 000056263a41bc80 R14: 000056263a41bb70 R15: 000056263a41bec0