[ 1842.815448] BUG: kernel NULL pointer dereference, address: 0000000000000068
[ 1842.815459] #PF: supervisor write access in kernel mode
[ 1842.815464] #PF: error_code(0x0002) - not-present page
[ 1842.815469] PGD 0 P4D 0
[ 1842.815479] Oops: 0002 [#1] PREEMPT SMP NOPTI
[ 1842.815488] CPU: 3 PID: 54789 Comm: kworker/3:1 Tainted: G U OE 5.3.13-zen1-1-zen #1
[ 1842.815492] Hardware name: Dell Inc. XPS 13 9360/02PG84, BIOS 2.11.0 03/14/2019
[ 1842.815535] Workqueue: events iwl_mvm_add_new_dqa_stream_wk [iwlmvm]
[ 1842.815571] RIP: 0010:iwl_trans_pcie_txq_enable+0x6c/0x480 [iwlwifi]
[ 1842.815577] Code: 00 00 4c 8b ac c7 98 7f 00 00 f0 48 0f ab 87 98 8f 00 00 73 0d 80 3d ba 36 04 00 00 0f 84 dd 03 00 00 44 89 c7 e8 04 d6 ba de <49> 89 45 68 48 85 db 0f 84 ee 02 00 00 0f b6 03 89 44 24 04 41 0f
[ 1842.815581] RSP: 0018:ffffa0d98c333d08 EFLAGS: 00010246
[ 1842.815585] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 1842.815589] RDX: 3ffffffffffffffe RSI: 000000000000001f RDI: 0000000000000000
[ 1842.815592] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
[ 1842.815595] R10: 000000000000000a R11: 0000000000000000 R12: 000000000000001f
[ 1842.815598] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88c599f00018
[ 1842.815603] FS: 0000000000000000(0000) GS:ffff88c5ae2c0000(0000) knlGS:0000000000000000
[ 1842.815606] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1842.815609] CR2: 0000000000000068 CR3: 000000035ade4003 CR4: 00000000003606e0
[ 1842.815613] Call Trace:
[ 1842.815647] ? iwl_mvm_inactivity_check+0x803/0xa60 [iwlmvm]
[ 1842.815675] iwl_mvm_enable_txq+0x1f0/0x320 [iwlmvm]
[ 1842.815703] iwl_mvm_add_new_dqa_stream_wk+0x29c/0x9c0 [iwlmvm]
[ 1842.815716] process_one_work+0x1e2/0x3b0
[ 1842.815725] worker_thread+0x5d/0x490
[ 1842.815732] kthread+0x131/0x170
[ 1842.815742] ? rescuer_thread+0x4c0/0x4c0
[ 1842.815749] ? kthread_park+0x80/0x80
[ 1842.815761] ret_from_fork+0x1f/0x40
[ 1842.815768] Modules linked in: ccm xt_REDIRECT nf_nat_pptp nf_conntrack_pptp iptable_nat xt_MASQUERADE tun overlay ufs hfsplus hfs minix ntfs msdos jfs xfs fuse rfcomm ebtable_filter ebtables cmac algif_hash algif_skcipher af_alg bnep snd_hda_codec_hdmi snd_soc_skl snd_soc_skl_ipc snd_soc_sst_ipc snd_soc_sst_dsp hid_multitouch snd_hda_ext_core snd_soc_acpi_intel_match joydev hid_generic mousedev snd_soc_acpi snd_soc_core mei_hdcp mei_wdt iTCO_wdt x86_pkg_temp_thermal snd_compress intel_powerclamp iTCO_vendor_support snd_hda_codec_realtek ac97_bus snd_pcm_dmaengine coretemp snd_hda_codec_generic i915 iwlmvm kvm_intel mac80211 msr kvm nls_iso8859_1 nls_cp437 btusb snd_hda_intel vfat fat btrtl libarc4 i2c_algo_bit dell_laptop btbcm drm_kms_helper uvcvideo btintel intel_rapl_msr ledtrig_audio snd_hda_codec wmi_bmof dell_wmi intel_wmi_thunderbolt irqbypass drm videobuf2_vmalloc bluetooth ext4 videobuf2_memops dell_smbios intel_cstate videobuf2_v4l2 snd_hda_core snd_hwdep iwlwifi
[ 1842.815847] dell_wmi_descriptor intel_gtt dcdbas mbcache snd_pcm jbd2 agpgart videobuf2_common dell_smm_hwmon snd_timer intel_uncore syscopyarea tpm_crb videodev cfg80211 snd intel_rapl_perf ecdh_generic sysfillrect ucsi_acpi psmouse mei_me ecc i2c_hid idma64 mc pcspkr input_leds typec_ucsi intel_xhci_usb_role_switch processor_thermal_device sysimgblt soundcore i2c_i801 intel_lpss_pci intel_rapl_common rfkill tpm_tis crc16 mei fb_sys_fops hid roles typec intel_soc_dts_iosf intel_lpss tpm_tis_core wmi intel_pch_thermal battery tpm soc_button_array intel_vbtn intel_hid int3403_thermal rng_core int340x_thermal_zone evdev int3400_thermal ac acpi_thermal_rel sparse_keymap mac_hid nf_log_ipv6 ip6t_REJECT nf_reject_ipv6 xt_hl ip6t_rt nf_log_ipv4 nf_log_common ipt_REJECT nf_reject_ipv4 xt_LOG xt_multiport xt_limit xt_addrtype xt_tcpudp xt_conntrack ip6table_filter ip6_tables nf_conntrack_netbios_ns nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack nf_defrag_ipv6