Backtrace

BUG: unable to handle page fault for address: 0000000004000000
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] SMP PTI
CPU: 2 PID: 796 Comm: low-memory-moni Tainted: G        W         5.10.14-200.fc33.x86_64 #1
Hardware name: TOSHIBA TECRA R950/TECRA R950, BIOS Version 6.80   06/25/2013
RIP: 0010:eventpoll_release_file+0x25/0x80
Code: 00 00 00 00 00 0f 1f 44 00 00 41 55 49 89 fd 48 c7 c7 80 ce bf a9 41 54 49 81 c5 d0 00 00 00 55 53 e8 cf 11 85 00 49 8b 45 00 <48> 8b 10 49 39 c5 74 3b 48 8d 68 a8 48 8d 5a a8 4c 8b 65 50 4c 89
RSP: 0018:ffffb7a200987cf0 EFLAGS: 00010246
RAX: 0000000004000000 RBX: 00000000480a801d RCX: ffffa07b48622800
RDX: ffffa07b40c1ce00 RSI: 0000000000000000 RDI: ffffffffa9bfce80
RBP: ffffa07b46e3c400 R08: 0000000000000001 R09: ffffa07b41b9aae0
R10: 0000000000000010 R11: ffffa07b46e3c410 R12: ffffa07b41b9aae0
R13: ffffa07b46e3c4d0 R14: ffffa07b4996db40 R15: ffffa07b40c1ce00
FS:  0000000000000000(0000) GS:ffffa07c65c80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000004000000 CR3: 0000000101c56003 CR4: 00000000001706e0
Call Trace:
 __fput+0x1dd/0x240
 task_work_run+0x65/0xa0
 do_exit+0x355/0xab0
 ? get_order+0x20/0x20
 do_group_exit+0x33/0xa0
 get_signal+0x16a/0x880
 ? wake_up_q+0xa0/0xa0
 arch_do_signal+0x30/0x710
 ? vfs_write+0x213/0x270
 exit_to_user_mode_prepare+0xd5/0x140
 syscall_exit_to_user_mode+0x2d/0x190
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fcac2cb0a5f
Code: Unable to access opcode bytes at RIP 0x7fcac2cb0a35.
RSP: 002b:00007fff86f3a9e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000007
RAX: fffffffffffffdfc RBX: 00007fcac2df9140 RCX: 00007fcac2cb0a5f
RDX: 00000000ffffffff RSI: 0000000000000004 RDI: 00007fcab80073d0
RBP: 00007fcab80073d0 R08: 0000000000000000 R09: 000000000000001e
R10: 0000000000000030 R11: 0000000000000293 R12: 0000000000000004
R13: 00007fff86f3aa24 R14: 00000000ffffffff R15: 00005650041346c0
Modules linked in: rfcomm xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT tun bridge stp llc ccm nf_nat_tftp nf_conntrack_netbios_ns nf_conntrack_broadcast nft_objref nf_conntrack_tftp 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 cmac bnep sunrpc uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel mc snd_intel_dspcfg soundwire_intel intel_rapl_msr soundwire_generic_allocation intel_rapl_common x86_pkg_temp_thermal intel_powerclamp snd_soc_core snd_compress snd_pcm_dmaengine soundwire_cadence snd_hda_codec coretemp iwldvm snd_hda_core kvm_intel
 ac97_bus snd_hwdep snd_seq btusb snd_seq_device mac80211 snd_pcm btrtl snd_timer kvm btbcm libarc4 btintel bluetooth snd irqbypass ecdh_generic ecc soundcore iTCO_wdt rapl mei_wdt intel_pmc_bxt intel_cstate iTCO_vendor_support intel_uncore mei_hdcp iwlwifi pcspkr cfg80211 joydev toshiba_bluetooth tpm_infineon lpc_ich mei_me mei toshiba_acpi sparse_keymap industrialio rfkill wmi_bmof toshiba_haps zram ip_tables radeon hid_logitech_hidpp crct10dif_pclmul crc32_pclmul crc32c_intel i2c_algo_bit ghash_clmulni_intel drm_kms_helper sdhci_pci cqhci cec sdhci ttm serio_raw mmc_core drm e1000e hid_logitech_dj wmi video fuse
CR2: 0000000004000000