Backtrace

WARNING: CPU: 0 PID: 6006 at fs/sysfs/group.c:279 sysfs_remove_group+0x6f/0x80
Modules linked in: vfat fat usblp uinput cmac rfcomm hid_logitech_hidpp hid_logitech_dj 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 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 nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter bnep sunrpc rt2800pci rt2800mmio rt2800lib rt2x00pci iTCO_wdt rt2x00mmio intel_pmc_bxt iTCO_vendor_support rt2x00lib coretemp kvm_intel mac80211 kvm hp_wmi sparse_keymap joydev irqbypass wmi_bmof btusb btrtl btbcm btintel cfg80211 bluetooth pcspkr ecdh_generic eeprom_93cx6 ecc rfkill libarc4 snd_hda_codec_idt snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_seq snd_seq_device snd_pcm snd_timer snd
 soundcore lpc_ich acpi_cpufreq zram ip_tables i2c_algo_bit drm_kms_helper serio_raw cec ttm drm r8169 wmi video fuse
CPU: 0 PID: 6006 Comm: kbnepd bnep1 Tainted: G        W         5.8.15-301.fc33.x86_64 #1
Hardware name: Hewlett-Packard Compaq 321 (00000000)/1476, BIOS 68PVI Ver. F.20 12/12/2011
RIP: 0010:sysfs_remove_group+0x6f/0x80
Code: ff 5b 48 89 ef 5d 41 5c e9 8e c3 ff ff 48 89 ef e8 d6 bc ff ff eb d1 49 8b 14 24 48 8b 33 48 c7 c7 40 cc 3c a5 e8 17 62 d0 ff <0f> 0b 5b 5d 41 5c c3 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90
RSP: 0018:ffffb1d5c100bd18 EFLAGS: 00010296
RAX: 0000000000000036 RBX: ffffffffa515fd80 RCX: ffff9a24ff818d18
RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffff9a24ff818d10
RBP: 0000000000000000 R08: 0000000000000715 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000001 R12: ffff9a246b3e2510
R13: ffff9a246b3e2590 R14: dead000000000100 R15: ffff9a249308a1c0
FS:  0000000000000000(0000) GS:ffff9a24ff800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055febe8cc0a0 CR3: 000000009e466000 CR4: 00000000000406f0
Call Trace:
 sysfs_remove_groups+0x29/0x40
 device_remove_attrs+0x39/0x70
 device_del+0x167/0x3f0
 rollback_registered_many+0x393/0x490
 unregister_netdevice_queue+0xab/0x160
 unregister_netdev+0x18/0x20
 bnep_session+0x465/0x900 [bnep]
 ? init_wait_entry+0x30/0x30
 ? bnep_rx_control+0x420/0x420 [bnep]
 kthread+0x11b/0x140
 ? __kthread_bind_mask+0x60/0x60
 ret_from_fork+0x22/0x30