Backtrace

WARNING: CPU: 1 PID: 14151 at drivers/net/wireless/intel/iwlwifi/mvm/scan.c:2383 iwl_mvm_rx_umac_scan_complete_notif+0x1e6/0x200 [iwlmvm]
Modules linked in: nls_utf8 isofs thunderbolt uinput rfcomm nf_conntrack_netlink xt_addrtype br_netfilter ccm xt_CHECKSUM xt_MASQUERADE nf_nat_tftp nf_conntrack_tftp tun bridge stp llc nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_REJECT nf_reject_ipv6 ip6t_rpfilter ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat iptable_mangle iptable_raw iptable_security nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c cmac ip_set nfnetlink ebtable_filter ebtables overlay ip6table_filter ip6_tables iptable_filter vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) bnep sunrpc vfat fat snd_hda_codec_hdmi snd_soc_skl snd_soc_sst_ipc elan_i2c snd_soc_sst_dsp snd_hda_ext_core snd_soc_acpi_intel_match snd_soc_acpi x86_pkg_temp_thermal snd_soc_core intel_powerclamp coretemp snd_hda_codec_realtek snd_compress ac97_bus snd_hda_codec_generic kvm_intel snd_pcm_dmaengine iwlmvm snd_hda_intel
 snd_intel_dspcfg kvm iTCO_wdt mac80211 iTCO_vendor_support intel_rapl_msr mei_hdcp mei_wdt irqbypass snd_hda_codec libarc4 crct10dif_pclmul crc32_pclmul uvcvideo snd_hda_core btusb btrtl snd_hwdep videobuf2_vmalloc btbcm ghash_clmulni_intel videobuf2_memops btintel iwlwifi intel_cstate videobuf2_v4l2 snd_seq intel_uncore snd_seq_device bluetooth videobuf2_common intel_rapl_perf snd_pcm pcspkr videodev intel_wmi_thunderbolt wmi_bmof ecdh_generic cfg80211 i2c_i801 snd_timer thinkpad_acpi joydev mc ecc ledtrig_audio processor_thermal_device snd ucsi_acpi intel_rapl_common mei_me typec_ucsi idma64 intel_xhci_usb_role_switch mei roles intel_pch_thermal intel_soc_dts_iosf typec soundcore int3403_thermal rfkill int340x_thermal_zone acpi_pad int3400_thermal acpi_thermal_rel ip_tables hid_logitech_hidpp i915 i2c_algo_bit drm_kms_helper crc32c_intel e1000e nvme uas serio_raw drm nvme_core usb_storage hid_logitech_dj wmi video fuse
CPU: 1 PID: 14151 Comm: kworker/1:0 Tainted: G           OE     5.5.17-200.fc31.x86_64 #1
Hardware name: LENOVO 20L8S3M801/20L8S3M801, BIOS N22ET35W (1.12 ) 04/09/2018
Workqueue: events iwl_mvm_async_handlers_wk [iwlmvm]
RIP: 0010:iwl_mvm_rx_umac_scan_complete_notif+0x1e6/0x200 [iwlmvm]
Code: b4 fe ff ff 48 8b 7f 28 e8 57 bb c7 ff 8b 8d 88 17 00 00 c7 85 a8 17 00 00 00 00 00 00 41 8b 84 24 0c 18 00 00 e9 8e fe ff ff <0f> 0b e9 40 ff ff ff e8 6e a0 10 df 66 66 2e 0f 1f 84 00 00 00 00
RSP: 0018:ffff9a15086d3df0 EFLAGS: 00010246
RAX: 0000000000000100 RBX: ffff8c487d95f1c0 RCX: 0000000000000000
RDX: ffff8c48c8381ec8 RSI: ffff8c46ab14a7d0 RDI: ffff8c48c8381e88
RBP: ffff8c48c8381eb8 R08: ffff8c48c8381eb8 R09: ffff8c48c66a2700
R10: 0000000000002104 R11: fffffffffff94ed3 R12: ffff8c48c8381e88
R13: 0000000000000000 R14: ffff8c46ab14a7c0 R15: ffff8c46ab14a7c0
FS:  0000000000000000(0000) GS:ffff8c48ce440000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000028a70808600d CR3: 000000034160a001 CR4: 00000000003606e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ? __switch_to_asm+0x40/0x70
 iwl_mvm_async_handlers_wk+0xa3/0x140 [iwlmvm]
 process_one_work+0x1b4/0x370
 worker_thread+0x50/0x3c0
 kthread+0xf9/0x130
 ? process_one_work+0x370/0x370
 ? kthread_park+0x90/0x90
 ret_from_fork+0x35/0x40