Similar error. Syslog grew to 11GB and I see the repitition of this error message seemingly from the mac80211 driver. The error message (in syslog) below repeats forever and fills up syslog. I don't know exactly what triggers it.

Jun 30 22:49:23 sapporo kernel: [34661.655411] Modules linked in: hidp nls_utf8 exfat(C) uas usb_storage rfcomm thunderbolt xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype iptable_filter iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 bpfilter br_netfilter bridge stp llc ccm aufs overlay cmac algif_hash algif_skcipher af_alg bnep snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_pcm mei_hdcp intel_rapl_msr snd_seq_midi snd_seq_midi_event snd_rawmidi x86_pkg_temp_thermal intel_powerclamp coretemp iwlmvm kvm_intel mac80211 nls_iso8859_1 libarc4 kvm snd_seq intel_cstate intel_rapl_perf input_leds iwlwifi snd_seq_device joydev uvcvideo snd_timer videobuf2_vmalloc videobuf2_memops serio_raw hp_wmi wmi_bmof videobuf2_v4l2 videobuf2_common btusb intel_wmi_thunderbolt snd cfg80211 btrtl mxm_wmi btbcm soundcore mei_me btintel videodev hid_sensor_accel_3d rtsx_pci_ms
Jun 30 22:49:23 sapporo kernel: [34661.655424]  hid_sensor_rotation hid_sensor_magn_3d mei hid_sensor_incl_3d hid_sensor_gyro_3d hid_sensor_trigger hid_multitouch mc bluetooth industrialio_triggered_buffer memstick kfifo_buf hid_sensor_iio_common industrialio processor_thermal_device ecdh_generic intel_xhci_usb_role_switch intel_rapl_common cros_ec_ishtp ecc roles cros_ec intel_pch_thermal intel_soc_dts_iosf int3403_thermal int340x_thermal_zone hp_wireless intel_vbtn mac_hid sparse_keymap acpi_pad int3400_thermal acpi_thermal_rel sch_fq_codel parport_pc ppdev lp parport ip_tables x_tables autofs4 dm_crypt raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear system76_io(OE) system76_acpi(OE) hid_sensor_custom hid_sensor_hub intel_ishtp_loader intel_ishtp_hid hid_generic i915 crct10dif_pclmul crc32_pclmul i2c_algo_bit ghash_clmulni_intel rtsx_pci_sdmmc drm_kms_helper aesni_intel intel_ish_ipc crypto_simd syscopyarea nvme sysfillrect sysimgblt fb_sys_fops
Jun 30 22:49:23 sapporo kernel: [34661.655437]  cryptd glue_helper psmouse i2c_i801 nvme_core rtsx_pci intel_ishtp drm intel_lpss_pci intel_lpss idma64 virt_dma i2c_hid hid wmi pinctrl_sunrisepoint pinctrl_intel video
Jun 30 22:49:23 sapporo kernel: [34661.655440] CPU: 2 PID: 44245 Comm: kworker/u8:1 Tainted: G        WC OE     5.4.0-7634-generic #38~1592497129~20.04~9a1ea2e-Ubuntu
Jun 30 22:49:23 sapporo kernel: [34661.655441] Hardware name: HP HP Spectre x360 Convertible 15-bl0XX/82C1, BIOS F.40 04/25/2019
Jun 30 22:49:23 sapporo kernel: [34661.655449] Workqueue: phy0 ieee80211_csa_connection_drop_work [mac80211]
Jun 30 22:49:23 sapporo kernel: [34661.655456] RIP: 0010:drv_sta_state+0x254/0x3f0 [mac80211]
Jun 30 22:49:23 sapporo kernel: [34661.655457] Code: 00 45 31 ed e9 66 fe ff ff 48 8b 83 78 04 00 00 48 8d b3 98 04 00 00 48 c7 c7 c8 68 f2 c0 48 85 c0 48 0f 45 f0 e8 47 c1 5f cd <0f> 0b 41 bd fb ff ff ff e9 3d fe ff ff 65 8b 05 e8 ac 16 3f 89 c0
Jun 30 22:49:23 sapporo kernel: [34661.655457] RSP: 0018:ffffbb57c348bc98 EFLAGS: 00010282
Jun 30 22:49:23 sapporo kernel: [34661.655458] RAX: 0000000000000000 RBX: ffff98a571e6a8c0 RCX: 0000000000000006
Jun 30 22:49:23 sapporo kernel: [34661.655458] RDX: 0000000000000007 RSI: 0000000000000082 RDI: ffff98a57eb178c0
Jun 30 22:49:23 sapporo kernel: [34661.655459] RBP: ffffbb57c348bcd0 R08: 0000000001c0ae38 R09: 0000000000000004
Jun 30 22:49:23 sapporo kernel: [34661.655459] R10: 0000000000000000 R11: 0000000000000001 R12: ffff98a57a7107a0
Jun 30 22:49:23 sapporo kernel: [34661.655460] R13: ffff98a57a7107a0 R14: 0000000000000004 R15: ffff98a57a710d68
Jun 30 22:49:23 sapporo kernel: [34661.655460] FS:  0000000000000000(0000) GS:ffff98a57eb00000(0000) knlGS:0000000000000000
Jun 30 22:49:23 sapporo kernel: [34661.655461] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Jun 30 22:49:23 sapporo kernel: [34661.655461] CR2: 00007f71bfaff9d0 CR3: 0000000476cf8002 CR4: 00000000003606e0
Jun 30 22:49:23 sapporo kernel: [34661.655462] Call Trace:
Jun 30 22:49:23 sapporo kernel: [34661.655469]  sta_info_move_state+0x276/0x370 [mac80211]
Jun 30 22:49:23 sapporo kernel: [34661.655476]  __sta_info_destroy_part2+0x2f/0x180 [mac80211]
Jun 30 22:49:23 sapporo kernel: [34661.655484]  __sta_info_flush+0x128/0x180 [mac80211]
Jun 30 22:49:23 sapporo kernel: [34661.655492]  ieee80211_set_disassoc+0xc0/0x5f0 [mac80211]
Jun 30 22:49:23 sapporo kernel: [34661.655494]  ? _raw_spin_unlock_bh+0x1e/0x20
Jun 30 22:49:23 sapporo kernel: [34661.655502]  __ieee80211_disconnect+0x86/0x120 [mac80211]
Jun 30 22:49:23 sapporo kernel: [34661.655510]  ieee80211_csa_connection_drop_work+0x15/0x20 [mac80211]
Jun 30 22:49:23 sapporo kernel: [34661.655512]  process_one_work+0x1eb/0x3b0
Jun 30 22:49:23 sapporo kernel: [34661.655513]  worker_thread+0x4d/0x400
Jun 30 22:49:23 sapporo kernel: [34661.655514]  kthread+0x104/0x140
Jun 30 22:49:23 sapporo kernel: [34661.655516]  ? process_one_work+0x3b0/0x3b0
Jun 30 22:49:23 sapporo kernel: [34661.655517]  ? kthread_park+0x90/0x90
Jun 30 22:49:23 sapporo kernel: [34661.655518]  ret_from_fork+0x35/0x40
Jun 30 22:49:23 sapporo kernel: [34661.655519] ---[ end trace c9f91f2bf5e6948d ]---
Jun 30 22:49:23 sapporo kernel: [34661.655532] ------------[ cut here ]------------
Jun 30 22:49:23 sapporo kernel: [34661.655532] wlp59s0:  Failed check-sdata-in-driver check, flags: 0x0
Jun 30 22:49:23 sapporo kernel: [34661.655551] WARNING: CPU: 2 PID: 44245 at net/mac80211/driver-ops.h:17 drv_sta_state+0x254/0x3f0 [mac80211]