Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000008
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 0 P4D 0 
Oops: 0002 [#4] PREEMPT SMP PTI
CPU: 2 PID: 903 Comm: abrt-dump-journ Tainted: G      D W         5.17.12-100.fc34.x86_64 #1
Hardware name: HP 870-241/830C, BIOS F.10 03/31/2017
RIP: 0010:blk_flush_plug+0x7d/0x120
Code: 00 00 00 00 ad de 49 bc 22 01 00 00 00 00 ad de 49 8b 46 18 48 8b 34 24 48 39 c6 74 5b 49 8b 4e 18 49 8b 56 20 48 8b 44 24 10 <48> 89 59 08 48 89 4c 24 10 48 89 02 48 89 50 08 49 89 76 18 49 89
RSP: 0018:ffffbe95c12a3cd0 EFLAGS: 00010286
RAX: ffffbe95c12a3ce0 RBX: ffffbe95c12a3ce0 RCX: 0000000000000000
RDX: ffff9f54c3d229c0 RSI: ffffbe95c12a3c88 RDI: ffffbe95c12a3c70
RBP: 0000000000000001 R08: ffffbe95c12a3e00 R09: ffffbe95c12a3e00
R10: 000000000014a1e6 R11: 0000000000000000 R12: dead000000000122
R13: dead000000000100 R14: ffffbe95c12a3c70 R15: ffff9f54c7e50cd0
FS:  0000000000000000(0000) GS:ffff9f581ec80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000008 CR3: 0000000449e10006 CR4: 00000000003726e0
Call Trace:
 <TASK>
 schedule+0x94/0xc0
 schedule_timeout+0xf8/0x130
 ? resched_curr+0x20/0xb0
 ? __prepare_to_swait+0x4c/0x70
 wait_for_completion+0x79/0xc0
 __flush_work.isra.0+0x150/0x210
 ? flush_workqueue_prep_pwqs+0x110/0x110
 fsnotify_destroy_group+0x45/0xc0
 ? proc_nr_files+0x30/0x30
 ? call_rcu+0x17b/0x690
 inotify_release+0x17/0x50
 __fput+0x94/0x250
 task_work_run+0x5c/0x90
 do_exit+0x320/0xaf0
 make_task_dead+0x51/0x60
 rewind_stack_and_make_dead+0x17/0x17
RIP: 0033:0x7fc33f0b2da4
Code: Unable to access opcode bytes at RIP 0x7fc33f0b2d7a.
RSP: 002b:00007ffe437dd1a0 EFLAGS: 00010202
RAX: 00007fc32f477a70 RBX: 00007ffe437dd200 RCX: 00007ffe437dd1a0
RDX: 000055f3a6d55ab8 RSI: 0000000000769a80 RDI: 000055f3a6d6a400
RBP: 000055f3a6d55a80 R08: 0000000000769a70 R09: 0000000000000010
R10: 12a3643446bf534d R11: 000055f3a6d40eb0 R12: 0000000000769a70
R13: 0000000000000006 R14: 00007ffe437dd1a0 R15: 000055f3a6d55a80
 </TASK>
Modules linked in: tun uinput rfcomm snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc nfsv3 nfs_acl nfs lockd grace fscache netfs 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 vfat fat iwlmvm mac80211 snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi ledtrig_audio btusb snd_hda_intel snd_intel_dspcfg intel_rapl_msr btrtl intel_rapl_common snd_intel_sdw_acpi libarc4 btbcm snd_hda_codec btintel btmtk intel_tcc_cooling snd_hda_core bluetooth snd_hwdep iwlwifi snd_seq snd_seq_device x86_pkg_temp_thermal
 intel_powerclamp snd_pcm coretemp iTCO_wdt intel_pmc_bxt iTCO_vendor_support iwlmei ee1004 kvm_intel mei_pxp mei_hdcp hp_wmi snd_timer i2c_i801 mei_me sparse_keymap kvm irqbypass rapl intel_cstate cfg80211 intel_uncore ecdh_generic wmi_bmof platform_profile pcspkr snd joydev rfkill i2c_smbus mei soundcore acpi_pad zram ip_tables hid_logitech_hidpp ums_realtek uas hid_logitech_dj usb_storage nouveau drm_ttm_helper ttm i2c_algo_bit mxm_wmi drm_kms_helper cec crct10dif_pclmul drm crc32_pclmul crc32c_intel r8169 ghash_clmulni_intel wmi video ipmi_devintf ipmi_msghandler fuse
CR2: 0000000000000008