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 [#5] PREEMPT SMP PTI
CPU: 0 PID: 1196 Comm: abrt-dump-journ Tainted: G      D           5.17.12-100.fc34.x86_64 #1
Hardware name: System manufacturer System Product Name/P7P55D PRO, BIOS 0209    07/28/2009
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: 0000:ffffbc8503d27cd0 EFLAGS: 00010286
RAX: ffffbc8503d27ce0 RBX: ffffbc8503d27ce0 RCX: 0000000000000000
RDX: ffff9de583878080 RSI: ffffbc8503d27c88 RDI: ffffbc8503d27c70
RBP: 0000000000000001 R08: ffffbc8503d27e00 R09: ffffbc8503d27e00
R10: 0000000000000000 R11: 0000000000000000 R12: dead000000000122
R13: dead000000000100 R14: ffffbc8503d27c70 R15: ffff9de52e26b450
FS:  00007f392172b900(0000) GS:ffff9de637a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000008 CR3: 000000011ae10000 CR4: 00000000000006f0
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: 0033:0x7f3922eadfed
Code: Unable to access opcode bytes at RIP 0x7f3922eadfc3.
RSP: 002b:00007ffc45393560 EFLAGS: 00010206
RAX: 00004550e686665a RBX: f674bd242d3a8e9d RCX: 0000000000038e38
RDX: 00007f38f7b484c0 RSI: 000055598e4b9980 RDI: 000055598e482600
RBP: 0000000000000018 R08: 000000000038e380 R09: 00007ffc45393620
R10: 44b94ff9ad8f86fb R11: 00007f3922c2f8d0 R12: 000055598e482600
R13: 000055598e482600 R14: 000055598e4de9d0 R15: 00007ffc45393748
 </TASK>
Modules linked in: snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc 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 rfkill 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 sunrpc si2157 lgdt3306a cx25840 intel_powerclamp cx23885 coretemp altera_ci kvm_intel tda18271 altera_stapl m88ds3103 snd_hda_codec_via tveeprom cx2341x snd_hda_codec_generic kvm videobuf2_dma_sg ledtrig_audio snd_hda_intel iTCO_wdt videobuf2_memops gpio_ich videobuf2_dvb intel_pmc_bxt videobuf2_v4l2 iTCO_vendor_support irqbypass videobuf2_common intel_cstate
 snd_intel_dspcfg snd_intel_sdw_acpi intel_uncore dvb_core snd_hda_codec videodev snd_hda_core mc snd_hwdep i2c_mux snd_seq pcspkr snd_seq_device i7core_edac snd_pcm i2c_i801 snd_timer lpc_ich i2c_smbus snd soundcore asus_atk0110 acpi_cpufreq zram ip_tables nouveau video drm_ttm_helper ttm drm_kms_helper cec ata_generic uas pata_acpi mxm_wmi crc32c_intel serio_raw drm usb_storage firewire_ohci igb r8169 firewire_core crc_itu_t dca pata_jmicron i2c_algo_bit wmi fuse ipmi_devintf ipmi_msghandler
CR2: 0000000000000008