Backtrace

traps: chrome[3182] trap invalid opcode ip:7fa96d87a090 sp:7ffd76c21dd8 error:0 in libgdk-3.so.0.2404.9[7fa96d834000+80000]
BUG: kernel NULL pointer dereference, address: 0000000000000020
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#2] SMP PTI
CPU: 0 PID: 3182 Comm: chrome Tainted: P      D W  OE     5.3.7-301.fc31.x86_64 #1
Hardware name: Gigabyte Technology Co., Ltd. X299 UD4 Pro/X299 UD4 Pro-CF, BIOS F1 07/11/2017
RIP: 0010:__rb_erase_color+0x38/0x270
Code: fd 53 4c 8b 65 08 48 89 d3 31 d2 49 39 d4 74 63 4d 8b 6c 24 10 41 f6 04 24 01 0f 84 18 01 00 00 49 8b 44 24 08 48 85 c0 74 09 <f6> 00 01 0f 84 f5 01 00 00 4d 85 ed 74 0b 41 f6 45 00 01 0f 84 a6
RSP: 0000:ffffa7ea03dffbf0 EFLAGS: 00010202
RAX: 0000000000000020 RBX: ffffffff94272e00 RCX: 000000000000003e
RDX: 0000000000000000 RSI: ffff983397515b10 RDI: ffff9832e72a3890
RBP: ffff9832e72a3890 R08: ffff9832e72a3890 R09: 000000000000003e
R10: ffff9832ef9b9638 R11: 0000000000000000 R12: ffff9832e34aba20
R13: 0000000000000000 R14: ffff983397515b10 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff9833df800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000020 CR3: 000000057d40a006 CR4: 00000000003606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 unlink_file_vma+0x3d/0x60
 free_pgtables+0x92/0xf0
 exit_mmap+0xbc/0x1a0
 mmput+0x61/0x130
 do_exit+0x296/0xb80
 do_group_exit+0x3a/0xa0
 get_signal+0x155/0x860
 ? __irq_work_queue_local+0x50/0x60
 do_signal+0x36/0x640
 ? signal_wake_up_state+0x15/0x30
 ? __send_signal+0x2ac/0x3f0
 exit_to_usermode_loop+0x7f/0x100
 ? invalid_op+0xa/0x30
 prepare_exit_to_usermode+0x6e/0x80
 retint_user+0x8/0x8
RIP: 0033:0x7fa96d87a090
Code: Bad RIP value.
RSP: 002b:00007ffd76c21dd8 EFLAGS: 00010246
RAX: 00007fa96d90c2a0 RBX: 00007ffd76c21df8 RCX: 00000f3f9a4778e0
RDX: 0000000000000001 RSI: 0000000000000001 RDI: 00000f3f9a5cf400
RBP: 00000f3f9a447dc0 R08: 0000000000000000 R09: 0000000000000001
R10: 00000f3f9a5cf468 R11: 0000000000000000 R12: 0000000000000000
R13: 000000007fffffff R14: 00007ffd76c21e00 R15: 00007fa96d87a090
Modules linked in: 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 ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter it87 hwmon_vid sunrpc nvidia_drm(POE) nvidia_modeset(POE) nvidia(POE) intel_rapl_msr intel_rapl_common isst_if_common snd_hda_codec_hdmi nfit libnvdimm snd_hda_codec_realtek x86_pkg_temp_thermal snd_hda_codec_generic intel_powerclamp ledtrig_audio coretemp kvm_intel snd_hda_intel snd_hda_codec kvm snd_hda_core mt7601u snd_hwdep snd_seq irqbypass snd_seq_device crct10dif_pclmul crc32_pclmul mac80211 drm_kms_helper ghash_clmulni_intel snd_pcm intel_cstate cfg80211 drm
 snd_timer rfkill snd intel_uncore libarc4 ipmi_devintf ipmi_msghandler soundcore i2c_i801 mei_me ioatdma wdat_wdt intel_rapl_perf intel_wmi_thunderbolt wmi_bmof mei dca ip_tables mxm_wmi e1000e crc32c_intel wmi fuse
CR2: 0000000000000020