Backtrace

traps: Web Content[42074] general protection fault ip:7f5bc803b32f sp:7ffed09285a0 error:0 in libxul.so[7f5bc4145000+4bee000]
page:fffff4318caf2c00 refcount:0 mapcount:-128 mapping:0000000000000000 index:0x1
flags: 0x17ffffc0000000()
raw: 0017ffffc0000000 fffff4318d6eeb88 fffff4318cd57808 0000000000000000
raw: 0000000000000001 0000000000000001 00000000ffffff7f 0000000000000000
page dumped because: VM_BUG_ON_PAGE(((unsigned int) page_ref_count(page) + 127u <= 127u))
------------[ cut here ]------------
kernel BUG at include/linux/mm.h:1008!
invalid opcode: 0000 [#1] SMP PTI
CPU: 1 PID: 40237 Comm: firefox Not tainted 5.5.8-200.fc31.x86_64 #1
Hardware name: LENOVO 30AGS06U00/SHARKBAY, BIOS FBKTB9AUS 11/13/2015
RIP: 0010:copy_page_range+0xc9c/0x1160
Code: 48 3d 00 00 20 00 0f 84 bb f9 ff ff 4c 8b bc 24 98 00 00 00 4c 89 ff e8 3c 44 ff ff 0f 0b 48 c7 c6 c0 7c 35 8f e8 24 44 ff ff <0f> 0b 48 81 e1 00 f0 ff ff e9 a3 f8 ff ff 4c 89 ff e8 2e 9d ff ff
RSP: 0018:ffffb5680065fbc0 EFLAGS: 00010246
RAX: 0000000000000059 RBX: ffff9f5a15c0db00 RCX: 0000000000000007
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8f3922a5
RBP: 00007fa588360000 R08: 000000000000043e R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000001 R12: 800000032bcb0845
R13: ffff9f5a16ab6578 R14: 0000000000000000 R15: ffff9f5a5dd42640
FS:  00007fa5ef220780(0000) GS:ffff9f5a8dc80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00003f1410d1b000 CR3: 00000003cd84c006 CR4: 00000000001606e0
Call Trace:
 dup_mm+0x3ee/0x590
 copy_process+0x17f5/0x1ac0
 _do_fork+0x70/0x3a0
 ? handle_mm_fault+0xc4/0x1f0
 __x64_sys_clone+0x81/0xa0
 do_syscall_64+0x5b/0x1c0
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fa5ef2f326f
Code: ed 0f 85 f4 00 00 00 64 4c 8b 0c 25 10 00 00 00 45 31 c0 4d 8d 91 d0 02 00 00 31 d2 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 8d 00 00 00 41 89 c5 85 c0 0f 85 9a 00 00
RSP: 002b:00007ffedb0c6760 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007ffedb0c6860 RCX: 00007fa5ef2f326f
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 00007fa5ef220780
R10: 00007fa5ef220a50 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000001 R14: 0000000000000000 R15: 00007ffedb0c67c0
Modules linked in: uinput ccm xt_CHECKSUM xt_MASQUERADE nf_nat_tftp nf_conntrack_tftp 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 tun bridge stp llc ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter sunrpc vfat fat squashfs zstd_decompress loop dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp rt2800pci rt2800mmio rt2800lib rt2x00pci rt2x00mmio rt2x00lib mac80211 kvm snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio cfg80211 snd_hda_intel snd_intel_dspcfg irqbypass snd_hda_codec snd_hda_core crct10dif_pclmul joydev snd_hwdep crc32_pclmul snd_seq
 snd_seq_device snd_pcm snd_timer ghash_clmulni_intel intel_cstate snd soundcore eeprom_93cx6 libarc4 intel_uncore iTCO_wdt iTCO_vendor_support mei_wdt intel_rapl_perf mei_hdcp i2c_i801 mei_me mei lpc_ich ie31200_edac wmi_bmof pcspkr ip_tables rfkill hid_logitech_hidpp nouveau mxm_wmi i2c_algo_bit drm_kms_helper ttm crc32c_intel drm e1000e sky2 wmi uas usb_storage hid_logitech_dj video fuse