Backtrace

BUG: kernel NULL pointer dereference, address: 0000000000000050
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 8000000424fea067 P4D 8000000424fea067 PUD 2b42d8067 PMD 0 
Oops: 0000 [#1] SMP PTI
CPU: 3 PID: 22181 Comm: ip Tainted: G           OE     5.6.13-300.fc32.x86_64 #1
Hardware name: LENOVO 20HFCT01WW/20HFCT01WW, BIOS N1WET48W (1.27 ) 05/28/2018
RIP: 0010:vboxNetFltLinuxNotifierIPv4Callback+0x23/0x60 [vboxnetflt]
Code: 9f eb e9 6a ff ff ff 0f 1f 44 00 00 8b 42 34 48 8b 4f d0 3c 7f 74 38 4c 8b 42 18 49 39 08 74 06 66 3d a9 fe 74 29 48 8b 7f 90 <48> 8b 47 50 48 85 c0 74 1c 48 83 fe 01 74 1c 48 83 fe 02 75 10 31
RSP: 0018:ffffa92f825b3b58 EFLAGS: 00010297
RAX: 0000000001faa8c0 RBX: 0000000000000000 RCX: ffff91ece1b64000
RDX: ffff91ecac060d00 RSI: 0000000000000002 RDI: 0000000000000000
RBP: 0000000000000002 R08: ffff91eccc621e00 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
R13: ffff91ecac060d00 R14: ffffffffad7fc240 R15: 00000000fffffffc
FS:  00007ff2cb302700(0000) GS:ffff91ecfe580000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000050 CR3: 000000041f0c8003 CR4: 00000000003626e0
Call Trace:
 ? blocking_notifier_call_chain+0x6e/0x90
 ? __inet_del_ifa+0x188/0x300
 ? inet_rtm_deladdr+0x116/0x1c0
 ? rtnetlink_rcv_msg+0x28c/0x340
 ? sock_has_perm+0x84/0xa0
 ? netlink_recvmsg+0x2a2/0x410
 ? rtnl_calcit.isra.0+0xf0/0xf0
 ? netlink_rcv_skb+0x47/0x110
 ? netlink_unicast+0x1ce/0x290
 ? netlink_sendmsg+0x233/0x450
 ? sock_sendmsg+0x5e/0x60
 ? __sys_sendto+0xee/0x150
 ? syscall_trace_enter+0x14f/0x290
 ? __x64_sys_sendto+0x25/0x30
 ? do_syscall_64+0x5b/0xf0
 ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
Modules linked in: uinput rfcomm xt_conntrack ipt_REJECT nf_reject_ipv4 ip6table_mangle ip6table_nat nf_tables nfnetlink ip6table_filter ip6_tables tun ccm xt_CHECKSUM iptable_mangle xt_MASQUERADE xt_comment iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c iptable_filter vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) cmac bnep sunrpc vfat fat squashfs zstd_decompress loop intel_rapl_msr rmi_smbus rmi_core mei_hdcp mei_wdt iTCO_wdt iTCO_vendor_support intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel intel_cstate intel_uncore intel_rapl_perf uvcvideo iwlmvm videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common btusb btrtl btbcm videodev btintel mac80211 bluetooth libarc4 joydev mc ecdh_generic snd_soc_skl ecc iwlwifi snd_soc_sst_ipc snd_soc_sst_dsp snd_hda_ext_core snd_hda_codec_hdmi snd_soc_acpi_intel_match snd_soc_acpi intel_wmi_thunderbolt wmi_bmof
 snd_soc_core cfg80211 pcspkr snd_hda_codec_realtek snd_hda_codec_generic snd_compress ac97_bus snd_pcm_dmaengine snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_seq intel_xhci_usb_role_switch snd_seq_device roles snd_pcm mei_me i2c_i801 mei snd_timer ucsi_acpi typec_ucsi intel_pch_thermal typec thinkpad_acpi ledtrig_audio snd soundcore rfkill acpi_pad ip_tables i915 hid_logitech_hidpp i2c_algo_bit cec drm_kms_helper e1000e crc32c_intel drm nvme serio_raw hid_logitech_dj nvme_core wmi video br_netfilter bridge stp llc fuse
CR2: 0000000000000050