Backtrace

BUG: unable to handle page fault for address: 00000000ffffffff
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#3] SMP PTI
CPU: 2 PID: 37047 Comm: Chrome_ChildIOT Tainted: G      D      L    5.9.16-200.fc33.x86_64 #1
Hardware name: TOSHIBA Satellite L770/Oneonta Falls, BIOS 1.70 08/22/2011
RIP: 0010:futex_wake+0xb4/0x150
Code: 5f c3 4c 8d 68 04 49 83 c6 08 4c 89 ef e8 64 b9 a1 00 49 8b 06 48 8b 08 48 8d 70 e8 48 8d 59 e8 49 39 c6 75 1c e9 94 00 00 00 <48> 8b 43 18 48 8d 53 18 48 89 de 48 83 e8 18 49 39 d6 74 4e 48 89
RSP: 0018:ffffa0f883b57d60 EFLAGS: 00010286
RAX: 00007ffe3fa47000 RBX: 00000000ffffffe7 RCX: ffff8eca563eb248
RDX: ffffa0f888cffd30 RSI: ffffa0f888cffd18 RDI: ffff8eca563dc684
RBP: 00000000ffffffff R08: 00007ffe3fa47410 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 000000007fffffff
R13: ffff8eca563dc684 R14: ffff8eca563dc688 R15: 0000000000000000
FS:  00007fca44e08640(0000) GS:ffff8eca57880000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000001ab125fa000 CR3: 000000011a8b6004 CR4: 00000000000606e0
Call Trace:
 do_futex+0x897/0xcb0
 ? ___sys_recvmsg+0x7b/0xe0
 ? ep_read_events_proc+0xc0/0xc0
 ? __seccomp_filter+0x7f/0x6c0
 __x64_sys_futex+0x125/0x190
 do_syscall_64+0x33/0x40
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fca5a202438
Code: 83 e1 fc f0 41 0f b1 09 75 f2 80 f3 81 83 e2 03 89 de 83 fa 02 0f 84 9f 00 00 00 45 31 d2 ba ff ff ff 7f b8 ca 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 4d 48 83 c4 38 31 c0 5b 5d 41 5c 41 5d 41 5e
RSP: 002b:00007fca44e067c0 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 0000000000000081 RCX: 00007fca5a202438
RDX: 000000007fffffff RSI: 0000000000000081 RDI: 00007ffe3fa47438
RBP: 0000000000000000 R08: 00007ffe3fa47410 R09: 00007ffe3fa47430
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00000000000000ca R14: 0000000000000001 R15: 00007ffe3fa47410
Modules linked in: rfcomm cmac bnep btusb btrtl btbcm btintel bluetooth ecdh_generic ecc uinput xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp tun bridge stp llc ccm 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 sunrpc snd_hda_codec_hdmi rtl8192ce rtl_pci snd_hda_codec_realtek rtl8192c_common snd_hda_codec_generic ledtrig_audio rtlwifi snd_hda_intel mac80211 snd_intel_dspcfg snd_hda_codec snd_hda_core iTCO_wdt intel_pmc_bxt iTCO_vendor_support uvcvideo snd_hwdep snd_seq snd_seq_device snd_pcm intel_rapl_msr intel_rapl_common videobuf2_vmalloc snd_timer x86_pkg_temp_thermal
 intel_powerclamp coretemp videobuf2_memops videobuf2_v4l2 kvm_intel kvm videobuf2_common irqbypass rapl squashfs videodev loop mc intel_cstate intel_uncore toshiba_acpi industrialio joydev at24 mei_hdcp pcspkr cfg80211 snd libarc4 toshiba_wmi sparse_keymap wmi_bmof soundcore i2c_i801 rfkill lpc_ich mei_me i2c_smbus mei zram ip_tables i915 ums_realtek uas usb_storage i2c_algo_bit crct10dif_pclmul crc32_pclmul drm_kms_helper crc32c_intel cec ghash_clmulni_intel drm serio_raw r8169 wmi video fuse
CR2: 00000000ffffffff