Backtrace

WARNING: CPU: 1 PID: 1680 at fs/sysfs/group.c:279 sysfs_remove_group+0x74/0x80
Modules linked in: uinput uas usb_storage ccm xt_CHECKSUM xt_MASQUERADE nf_nat_tftp nf_conntrack_tftp nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT tun bridge ip6t_REJECT nf_reject_ipv6 stp llc 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 ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter bnep sunrpc uvcvideo intel_rapl_msr videobuf2_vmalloc btusb videobuf2_memops intel_rapl_common videobuf2_v4l2 btrtl videobuf2_common btbcm btintel bluetooth x86_pkg_temp_thermal videodev intel_powerclamp coretemp kvm_intel mc qcserial usb_wwan ecdh_generic ecc pn544_mei iwlmvm kvm mei_phy mac80211 pn544 hci nfc mei_hdcp ppdev libarc4 iTCO_wdt mei_wdt intel_pmc_bxt iTCO_vendor_support snd_hda_codec_realtek irqbypass snd_hda_codec_generic snd_hda_codec_hdmi
 iwlwifi snd_hda_intel rapl dell_laptop snd_intel_dspcfg intel_cstate ledtrig_audio snd_hda_codec intel_uncore dell_smm_hwmon snd_hda_core pcspkr dell_wmi snd_hwdep dell_smbios snd_seq cfg80211 sparse_keymap dcdbas joydev dell_wmi_descriptor snd_seq_device snd_pcm parport_pc snd_timer snd parport soundcore mei_me mei i2c_i801 lpc_ich i2c_smbus dell_rbtn rfkill wmi_bmof dell_smo8800 ip_tables i915 sdhci_pci crct10dif_pclmul crc32_pclmul crc32c_intel cqhci sdhci i2c_algo_bit ghash_clmulni_intel drm_kms_helper cec serio_raw mmc_core drm cdc_mbim e1000e cdc_wdm cdc_ncm usbnet mii wmi video fuse
CPU: 1 PID: 1680 Comm: systemd-udevd Not tainted 5.8.18-100.fc31.x86_64 #1
Hardware name: Dell Inc. Latitude E7440/07F3F4, BIOS A27 10/09/2018
RIP: 0010:sysfs_remove_group+0x74/0x80
Code: ff 5b 48 89 ef 5d 41 5c e9 29 be ff ff 48 89 ef e8 b1 b9 ff ff eb cc 49 8b 14 24 48 8b 33 48 c7 c7 30 20 3f 97 e8 de e9 d0 ff <0f> 0b 5b 5d 41 5c c3 0f 1f 44 00 00 0f 1f 44 00 00 48 85 f6 74 31
RSP: 0018:ffffab9b40edbb68 EFLAGS: 00010296
RAX: 0000000000000030 RBX: ffffffff9712a0c0 RCX: 0000000000000027
RDX: 0000000000000027 RSI: 0000000000000096 RDI: ffff9e2dd6a98d08
RBP: 0000000000000000 R08: ffff9e2dd6a98d00 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000001 R12: ffff9e2d9511c068
R13: 0000000000000001 R14: 0000000000000000 R15: ffff9e2d61332000
FS:  00007fc0b37e8940(0000) GS:ffff9e2dd6a80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a98b4b3330 CR3: 00000001cf1dc003 CR4: 00000000001606e0
Call Trace:
 device_del+0x97/0x3f0
 ? kobject_put+0x98/0x1d0
 delete_partition+0x64/0x80
 blk_drop_partitions+0x6c/0xb0
 bdev_disk_changed+0x76/0xd0
 __blkdev_get+0x39c/0x510
 ? bd_acquire+0xc0/0xc0
 blkdev_get+0x38/0x130
 ? bd_acquire+0x8e/0xc0
 ? bd_acquire+0xc0/0xc0
 do_dentry_open+0x156/0x3a0
 path_openat+0xd60/0xfc0
 ? vsnprintf+0x253/0x4e0
 ? vsnprintf+0x387/0x4e0
 do_filp_open+0x7e/0xd0
 ? __check_object_size+0x136/0x147
 do_sys_openat2+0x1f1/0x2a0
 do_sys_open+0x34/0x60
 do_syscall_64+0x4d/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7fc0b477616b
Code: 25 00 00 41 00 3d 00 00 41 00 74 4b 64 8b 04 25 18 00 00 00 85 c0 75 67 44 89 e2 48 89 ee bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 91 00 00 00 48 8b 4c 24 28 64 48 33 0c 25
RSP: 002b:00007fff7d67c560 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc0b477616b
RDX: 00000000000a0800 RSI: 000055a98b4375d0 RDI: 00000000ffffff9c
RBP: 000055a98b4375d0 R08: 00007fc0b4576f20 R09: 000055a98b55cb00
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 00007fff7d67c688 R14: 000055a98b168740 R15: 000055a98b51fe30