Backtrace

BUG: unable to handle page fault for address: ffffffffa048f400
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 17c15067 P4D 17c15067 PUD 17c16063 PMD 730b4063 PTE 800fffffe7b70062
Oops: 0002 [#1] SMP PTI
CPU: 0 PID: 1802 Comm: gnome-shell Tainted: G         C        5.14.18-100.fc33.x86_64 #1
Hardware name: Acer Aspire ES1-512/Aspire ES1-512, BIOS V1.07 09/11/2014
RIP: 0010:native_queued_spin_lock_slowpath+0x190/0x1d0
Code: ff ff ff c6 47 01 00 e9 21 ff ff ff c1 ee 12 83 e0 03 83 ee 01 48 c1 e0 05 48 63 f6 48 05 00 c4 02 00 48 03 04 f5 80 3a 6c 9f <48> 89 10 8b 42 08 85 c0 75 09 f3 90 8b 42 08 85 c0 74 f7 48 8b 32
RSP: 0018:ffffb100c14dfad8 EFLAGS: 00010086
RAX: ffffffffa048f400 RBX: ffff89959339f700 RCX: 0000000000040000
RDX: ffff8995f762c400 RSI: 0000000000000c0b RDI: ffff89959339f788
RBP: ffff89959339f788 R08: 0000000000040000 R09: 0000000000004000
R10: 0000000000000035 R11: ffff8995f3163e00 R12: 0000000000000246
R13: ffffb100c14dfbfc R14: 0000000000000019 R15: ffff899584e03f00
FS:  00007f6c4e578d40(0000) GS:ffff8995f7600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffa048f400 CR3: 00000000098e0000 CR4: 00000000001006f0
Call Trace:
 _raw_spin_lock_irqsave+0x32/0x40
 timerfd_poll+0x3f/0x60
 do_sys_poll+0x26b/0x570
 ? __pollwait+0xd0/0xd0
 ? __pollwait+0xd0/0xd0
 ? __pollwait+0xd0/0xd0
 ? __pollwait+0xd0/0xd0
 ? __pollwait+0xd0/0xd0
 ? __pollwait+0xd0/0xd0
 ? __pollwait+0xd0/0xd0
 ? __pollwait+0xd0/0xd0
 ? __pollwait+0xd0/0xd0
 __x64_sys_poll+0x7a/0x110
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f6c527093ff
Code: 54 24 1c 48 89 74 24 10 48 89 7c 24 08 e8 09 ff f8 ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 48 8b 7c 24 08 b8 07 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 89 44 24 08 e8 5d ff f8 ff 8b 44
RSP: 002b:00007ffcd6678670 EFLAGS: 00000293 ORIG_RAX: 0000000000000007
RAX: ffffffffffffffda RBX: 00007f6c53461180 RCX: 00007f6c527093ff
RDX: 0000000000000fb7 RSI: 0000000000000010 RDI: 0000556e15094150
RBP: 0000556e15094150 R08: 0000000000000000 R09: 000000000000001a
R10: 00007ffcd6754080 R11: 0000000000000293 R12: 0000000000000010
R13: 00007ffcd66786b4 R14: 0000000000000fb7 R15: 0000556e12ffa180
Modules linked in: uinput xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp tun 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 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 vfat fat ath9k ath9k_common ath9k_hw r8188eu(C) mac80211 uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common lib80211 videodev ath intel_rapl_msr intel_rapl_common iTCO_wdt cfg80211 intel_soc_dts_thermal intel_pmc_bxt cdc_acm mei_hdcp mc intel_soc_dts_iosf iTCO_vendor_support intel_powerclamp coretemp kvm_intel at24 kvm rtsx_usb_ms memstick irqbypass ath3k btusb
 snd_hda_codec_hdmi libarc4 intel_cstate snd_hda_codec_realtek acer_wmi sparse_keymap joydev pcspkr snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec snd_hda_core snd_hwdep hci_uart snd_seq btqca btrtl btbcm snd_seq_device btintel snd_pcm bluetooth dw_dmac snd_timer snd soundcore mei_txe mei ecdh_generic i2c_i801 rfkill_gpio rfkill lpc_ich i2c_smbus wmi_bmof zram ip_tables i915 hid_multitouch crct10dif_pclmul crc32_pclmul crc32c_intel i2c_algo_bit ttm ghash_clmulni_intel drm_kms_helper cec r8169 serio_raw drm wmi video i2c_hid_acpi i2c_hid pwm_lpss_platform pwm_lpss rtsx_usb_sdmmc mmc_core rtsx_usb fuse
CR2: ffffffffa048f400