Backtrace

WARNING: CPU: 0 PID: 1816 at kernel/rcu/tree_plugin.h:316 rcu_note_context_switch+0x594/0x5d0
Modules linked in: tun uinput rfcomm snd_seq_dummy snd_hrtimer 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 vboxnetadp(OE) vboxnetflt(OE) qrtr vboxdrv(OE) bnep sunrpc vfat fat btusb btrtl btbcm btintel bluetooth uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc ecdh_generic rmi_smbus rmi_core snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core intel_rapl_msr snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match intel_rapl_common snd_soc_acpi snd_hda_codec_hdmi snd_soc_core iTCO_wdt iwlmvm mei_pxp mei_hdcp intel_pmc_bxt
 ee1004 snd_ctl_led snd_compress intel_tcc_cooling snd_hda_codec_conexant iTCO_vendor_support snd_hda_codec_generic ac97_bus snd_pcm_dmaengine x86_pkg_temp_thermal mac80211 intel_powerclamp coretemp snd_hda_intel snd_intel_dspcfg kvm_intel libarc4 snd_intel_sdw_acpi snd_hda_codec kvm iwlwifi irqbypass snd_hda_core rapl intel_cstate snd_hwdep snd_seq intel_uncore joydev cfg80211 snd_seq_device pcspkr thinkpad_acpi snd_pcm think_lmi intel_wmi_thunderbolt wmi_bmof i2c_i801 ledtrig_audio firmware_attributes_class snd_timer i2c_smbus mei_me platform_profile mei intel_xhci_usb_role_switch intel_pch_thermal rfkill snd soundcore acpi_pad zram ip_tables dm_crypt i915 i2c_algo_bit ttm sdhci_pci cqhci nvme drm_kms_helper crct10dif_pclmul sdhci crc32_pclmul crc32c_intel r8169 mmc_core cec ucsi_acpi typec_ucsi ghash_clmulni_intel serio_raw nvme_core drm typec wmi video ipmi_devintf ipmi_msghandler fuse lz4 lz4_compress
CPU: 0 PID: 1816 Comm: bluetoothd Tainted: G      D    OE     5.16.12-200.fc35.x86_64 #1
Hardware name: LENOVO 20KN001QGE/20KN001QGE, BIOS R0PET67W (1.44 ) 06/19/2020
RIP: 0010:rcu_note_context_switch+0x594/0x5d0
Code: 08 4d 89 be 40 08 00 00 49 89 b6 48 08 00 00 48 89 3e e9 6f fd ff ff 48 c7 c7 c0 2e 5e a7 c6 05 a3 61 fb 01 01 e8 7f 2c ad 00 <0f> 0b e9 c3 fa ff ff 0f 0b e9 9f fc ff ff 0f 0b e9 a1 fd ff ff 0f
RSP: 0018:ffffbd9b00d5bd28 EFLAGS: 00010092
RAX: 000000000000003f RBX: ffff968612632400 RCX: 0000000000000000
RDX: 0000000000000002 RSI: ffffffffa763494d RDI: 00000000ffffffff
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffbd9b00d5bb68
R10: ffffbd9b00d5bb60 R11: ffffffffa7f1a9b8 R12: ffffbd9b00d5be40
R13: ffff9683441b8000 R14: ffff968612631640 R15: ffff9683441b8000
FS:  0000000000000000(0000) GS:ffff968612600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe183a923d0 CR3: 00000001011d6003 CR4: 00000000003706f0
Call Trace:
 <TASK>
 ? __switch_to+0x114/0x440
 __schedule+0x9e/0xfa0
 ? asm_sysvec_apic_timer_interrupt+0x12/0x20
 ? preempt_count_add+0x68/0xa0
 ? _raw_spin_lock_irqsave+0x26/0x50
 schedule+0x4e/0xc0
 synchronize_rcu_expedited+0x1ec/0x320
 ? kvfree_call_rcu+0x2b0/0x2b0
 ? do_wait_intr_irq+0xa0/0xa0
 ? umount_tree+0x227/0x320
 namespace_unlock+0xaa/0x170
 put_mnt_ns+0x67/0x90
 free_nsproxy+0x17/0x1b0
 do_exit+0x35f/0xb40
 ? exit_to_user_mode_prepare+0x229/0x230
 rewind_stack_do_exit+0x17/0x17
RIP: 0033:0x7faf980e1ef7
Code: Unable to access opcode bytes at RIP 0x7faf980e1ecd.
RSP: 002b:00007ffedf403f78 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000564c58d9bae0 RCX: 00007faf980e1ef7
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000000001e
RBP: 0000000000000000 R08: 0000564c58de2aa0 R09: 000000000000002c
R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000
 </TASK>