A kernel panic occurred because error with process `gfs2_quotad`: `unable to handle kernel NULL pointer dereference`

Issue

• A kernel panic occurred because error with process gfs2_quotad: unable to handle kernel NULL pointer dereference

[390977.653729] BUG: unable to handle kernel NULL pointer dereference at 0000000000000100
[390977.654594] IP: [<ffffffffc099ea4b>] gfs2_quota_lock+0xab/0x140 [gfs2]
[390977.655076] PGD 8000001f6f38a067 PUD 1dbe216067 PMD 0
[390977.655481] Oops: 0000 [#1] SMP
[390977.655872] Modules linked in: gfs2 dlm virtio_console virtio_ring virtio tcp_diag udp_diag inet_diag rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache vmw_vsock_vmci_transport vsock sunrpc ppdev vmw_balloon sb_edac iosf_mbi crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd joydev pcspkr sg vmw_vmci i2c_piix4 parport_pc parport binfmt_misc ip_tables ext4 mbcache jbd2 sd_mod crc_t10dif crct10dif_generic ata_generic pata_acpi vmwgfx drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm crct10dif_pclmul crct10dif_common ata_piix crc32c_intel libata nfit serio_raw libnvdimm vmxnet3 drm_panel_orientation_quirks vmw_pvscsi dm_mirror dm_region_hash dm_log dm_mod
[390977.658328] CPU: 4 PID: 123937 Comm: chgrp Kdump: loaded Not tainted 3.10.0-957.27.2.el7.x86_64 #1
[390977.658856] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 09/19/2018
[390977.659378] task: ffff9eb308a78000 ti: ffff9ec5d63ec000 task.ti: ffff9ec5d63ec000
[390977.659907] RIP: 0010:[<ffffffffc099ea4b>]  [<ffffffffc099ea4b>] gfs2_quota_lock+0xab/0x140 [gfs2]
[390977.660471] RSP: 0018:ffff9ec5d63efd38  EFLAGS: 00010202
[390977.661020] RAX: 0000000000000000 RBX: ffff9ec1ae81cd80 RCX: 0000000000000000
[390977.661578] RDX: 0000000000000000 RSI: ffff9ec5d63efbe8 RDI: ffff9ec77ff988b8
[390977.662135] RBP: ffff9ec5d63efd58 R08: ffff9ec5d63ec000 R09: 0000000000000001
[390977.662687] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000002
[390977.663247] R13: 0000000000000000 R14: ffff9ec6ff275000 R15: 0000000000000000
[390977.663811] FS:  00002b1afd3c9480(0000) GS:ffff9ec6fd700000(0000) knlGS:0000000000000000
[390977.664408] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[390977.664997] CR2: 0000000000000100 CR3: 0000001da8a76000 CR4: 00000000001607e0
[390977.665643] Call Trace:
[390977.666251]  [<ffffffffc099bb26>] gfs2_setattr+0x1a6/0x2b0 [gfs2]
[390977.666870]  [<ffffffffacaa04de>] ? __break_lease+0x2be/0x3c0
[390977.667492]  [<ffffffffc099b9f8>] ? gfs2_setattr+0x78/0x2b0 [gfs2]
[390977.668117]  [<ffffffffaca61664>] notify_change+0x2c4/0x420
[390977.668696]  [<ffffffffaca3faec>] chown_common+0x19c/0x1d0
[390977.669336]  [<ffffffffaca410cf>] SyS_fchownat+0xcf/0x120
[390977.669984]  [<ffffffffacf76ddb>] system_call_fastpath+0x22/0x27
[390977.670646] Code: a8 1e ec 48 8b 83 e8 02 00 00 8b 90 00 01 00 00 85 d2 0f 84 98 00 00 00 45 31 e4 eb 17 0f 1f 00 48 8b 83 e8 02 00 00 41 83 c4 01 <44> 39 a0 00 01 00 00 76 7c 44 89 e1 48 8d 34 cd 00 00 00 00 48
[390977.672093] RIP  [<ffffffffc099ea4b>] gfs2_quota_lock+0xab/0x140 [gfs2]
[390977.672847]  RSP <ffff9ec5d63efd38>
[390977.673583] CR2: 0000000000000100