Description of problem:
I updated the system by dnf command.

Additional info:
reporter:       libreport-2.10.0
kernel BUG at mm/usercopy.c:102!
invalid opcode: 0000 [#1] SMP PTI
CPU: 2 PID: 918 Comm: rngd Not tainted 5.0.17-300.fc30.x86_64 #1
Hardware name: Acer Aspire F5-572G/Zoro_SL , BIOS V1.18 05/25/2017
RIP: 0010:usercopy_abort+0x77/0x79
Code: 4c 0f 45 de 51 4c 89 d1 48 c7 c2 13 79 0d 8c 57 48 c7 c6 51 3c 0c 8c 48 c7 c7 d8 79 0d 8c 48 0f 45 f2 4c 89 da e8 1a 5c e6 ff <0f> 0b 4c 89 e1 49 89 d8 44 89 ea 31 f6 48 81 e9 00 00 00 8b 48 c7
RSP: 0000:ffffb155c71cfda0 EFLAGS: 00010246
RAX: 0000000000000065 RBX: 0000000000000100 RCX: 0000000000000006
RDX: 0000000000000000 RSI: 0000000000000096 RDI: ffff8cecb23168c0
RBP: ffff8cecaff9ce80 R08: ffffb155c71cfc5d R09: 00000000000006d4
R10: ffffb155c71cfc58 R11: ffffb155c71cfc5d R12: ffff8cecaff9cd80
R13: 0000000000000001 R14: ffff8cecaa17f770 R15: 0000000000000100
FS:  00007fc7ec471d40(0000) GS:ffff8cecb2300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4de6d08810 CR3: 00000003492b2003 CR4: 00000000003606e0
Call Trace:
 __check_heap_object+0xe5/0x120
 __check_object_size+0x131/0x15d
 rng_dev_read+0xc6/0x270
 __vfs_read+0x37/0x1a0
 vfs_read+0x9d/0x150
 ksys_read+0x57/0xd0
 do_syscall_64+0x5b/0x170
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fc7ece52bdc
Code: ec 28 48 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 59 fc ff ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 30 44 89 c7 48 89 44 24 08 e8 8f fc ff ff 48
RSP: 002b:00007ffd7835ed90 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 00000000000009c4 RCX: 00007fc7ece52bdc
RDX: 00000000000009c4 RSI: 00007ffd7835ee10 RDI: 0000000000000003
RBP: 00007ffd7835ee10 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000008 R11: 0000000000000246 R12: 00005598e8a48620
R13: 0000000000000000 R14: 00007ffd7835ee10 R15: 0000000000000040
Modules linked in: snd_seq_dummy uas usb_storage ccm xt_CHECKSUM ipt_MASQUERADE tun bridge rfcomm stp llc devlink ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ebtable_nat ip6table_nat nf_nat_ipv6 ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat_ipv4 nf_nat iptable_mangle iptable_raw iptable_security nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c ip_set nfnetlink ebtable_filter ebtables arc4 ip6table_filter ip6_tables cmac bnep sunrpc vfat fat ath10k_pci ath10k_core snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core snd_soc_skl_ipc snd_soc_sst_ipc mac80211 snd_soc_sst_dsp snd_soc_acpi_intel_match intel_rapl snd_soc_acpi x86_pkg_temp_thermal intel_powerclamp snd_soc_core snd_hda_codec_hdmi coretemp snd_compress kvm_intel iTCO_wdt iTCO_vendor_support ac97_bus snd_hda_codec_realtek snd_pcm_dmaengine snd_hda_codec_generic ledtrig_audio snd_hda_intel uvcvideo snd_hda_codec videobuf2_vmalloc videobuf2_memops crct10dif_pclmul crc32_pclmul videobuf2_v4l2 ath
 snd_hda_core videobuf2_common snd_hwdep snd_seq videodev cfg80211 snd_seq_device snd_pcm ghash_clmulni_intel intel_cstate btusb intel_uncore btrtl btbcm btintel rtsx_usb_ms intel_rapl_perf memstick bluetooth snd_timer media intel_wmi_thunderbolt acer_wmi joydev sparse_keymap wmi_bmof snd i2c_i801 soundcore ecdh_generic idma64 rfkill mei_me mei intel_lpss_pci intel_pch_thermal intel_xhci_usb_role_switch intel_lpss roles pcc_cpufreq acpi_pad binfmt_misc i915 nouveau rtsx_usb_sdmmc kvmgt mmc_core mdev vfio kvm rtsx_usb mxm_wmi ttm irqbypass i2c_algo_bit drm_kms_helper crc32c_intel drm serio_raw r8169 wmi video fuse

Potential duplicate: bug 1666989