Backtrace

BUG: unable to handle page fault for address: ffff9f0dfd569cd8
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 497801067 P4D 497801067 PUD 53fff8067 PMD 2fb8ec063 PTE 800ffffd02a96062
Oops: 0000 [#13] SMP PTI
CPU: 4 PID: 8696 Comm: mcelog Tainted: G      D           5.8.18-100.fc31.x86_64 #1
Hardware name: Supermicro X8DTL/X8DTL, BIOS 2.1b       11/16/2012
RIP: 0010:kmem_cache_alloc+0x73/0x220
Code: 90 01 00 00 4d 8b 06 65 49 8b 50 08 65 4c 03 05 7b f9 d2 5c 4d 8b 20 4d 85 e4 0f 84 7c 01 00 00 41 8b 46 20 49 8b 3e 4c 01 e0 <48> 8b 18 48 89 c1 49 33 9e 70 01 00 00 48 0f c9 48 31 cb 40 f6 c7
RSP: 0018:ffffb450069c7bd8 EFLAGS: 00010286
RAX: ffff9f0dfd569cd8 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 00000000000345de RSI: 0000000000000dc0 RDI: 0000000000030690
RBP: 0000000000000dc0 R08: ffff9f1037a30690 R09: ffff9f0f586e5800
R10: 0000000040042000 R11: 0000000000000020 R12: ffff9f0dfd569cd0
R13: ffffffffa35332a4 R14: ffff9f0e33422f40 R15: ffff9f0e33422f40
FS:  00007f3fc99615c0(0000) GS:ffff9f1037a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff9f0dfd569cd8 CR3: 00000004a2854000 CR4: 00000000000006e0
Call Trace:
 security_file_alloc+0x24/0x90
 __alloc_file+0x52/0x110
 alloc_empty_file+0x41/0xb0
 path_openat+0x35/0xfc0
 ? page_remove_rmap+0x15/0x4b0
 do_filp_open+0x7e/0xd0
 ? __legitimize_path.isra.0+0x2c/0x60
 ? terminate_walk+0x7a/0xe0
 do_open_execat+0x6b/0x180
 __do_execve_file.isra.0+0x82f/0xbb0
 ? __check_object_size+0x136/0x147
 __x64_sys_execve+0x35/0x40
 do_syscall_64+0x4d/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f3fc98654db
Code: 41 89 01 eb da 66 2e 0f 1f 84 00 00 00 00 00 f7 d8 64 41 89 01 eb d6 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8 3b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 7d 39 0f 00 f7 d8 64 89 01 48
RSP: 002b:00007ffe72a277d8 EFLAGS: 00000206 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 00007ffe72a27870 RCX: 00007f3fc98654db
RDX: 00007ffe72a27870 RSI: 00007ffe72a277e0 RDI: 00000000022dbd40
RBP: 00007ffe72a277e0 R08: 0000000000000000 R09: 00007f3fc99615c0
R10: 00000000004011cc R11: 0000000000000206 R12: 00000000022dbd40
R13: 00007ffe72a27870 R14: 00000000022dc3e0 R15: 000000000041e1e0
Modules linked in: uinput xt_CHECKSUM xt_MASQUERADE nf_nat_tftp nf_conntrack_tftp tun bridge stp llc md4 cmac nls_utf8 cifs libarc4 dns_resolver fscache libdes 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 rfkill ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter binfmt_misc sunrpc intel_powerclamp coretemp kvm_intel iTCO_wdt snd_seq_dummy intel_pmc_bxt snd_seq_oss kvm snd_emu10k1_synth snd_emux_synth snd_seq_midi_emul gpio_ich iTCO_vendor_support irqbypass snd_seq_virmidi snd_seq_midi snd_seq_midi_event uvcvideo snd_emu10k1 snd_hda_codec_hdmi intel_cstate snd_hda_intel snd_intel_dspcfg snd_usb_audio intel_uncore snd_hda_codec videobuf2_vmalloc snd_util_mem
 videobuf2_memops snd_ac97_codec videobuf2_v4l2 snd_usbmidi_lib i2c_i801 snd_hda_core snd_hwdep videobuf2_common ac97_bus snd_seq i2c_smbus videodev snd_rawmidi snd_seq_device mc snd_pcm snd_timer snd soundcore i7core_edac ioatdma i5500_temp lpc_ich acpi_cpufreq dca ip_tables xfs raid10 amdgpu mgag200 iommu_v2 drm_vram_helper gpu_sched drm_ttm_helper i2c_algo_bit ttm drm_kms_helper cec crc32c_intel drm serio_raw firewire_ohci e1000e firewire_core sata_sil crc_itu_t bnx2 fuse
CR2: ffff9f0dfd569cd8