Server Panic rebooted "BUG: unable to handle kernel NULL pointer dereference at 0000000000000009" due to third party kernel module secfs2 inside function vmfs_same_sb.

Issue

[1349046.640322] BUG: unable to handle kernel NULL pointer dereference at 0000000000000009
[1349046.649045] IP: [<ffffffffc0932119>] vmfs_same_sb+0x19/0x50 [secfs2] <----
[1349046.650681] PGD 0 
[1349046.651985] Oops: 0000 [#1] SMP 
[1349046.653310] Modules linked in: unix_diag secvm2(POE) secfs2(POE) xt_nat veth xt_conntrack ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink xt_addrtype iptable_filter iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack libcrc32c br_netfilter bridge 8021q garp mrp stp llc overlay(T) vmw_vsock_vmci_transport vsock sunrpc sb_edac iosf_mbi crc32_pclmul ppdev ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper vmw_balloon ablk_helper cryptd joydev pcspkr sg vmw_vmci i2c_piix4 parport_pc parport binfmt_misc ip_tables ext4 mbcache jbd2 dm_snapshot dm_bufio sr_mod cdrom ata_generic pata_acpi vmwgfx drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm sd_mod crc_t10dif crct10dif_generic drm ahci ata_piix libahci nfit crct10dif_pclmul libata crct10dif_common
[1349046.659373]  crc32c_intel serio_raw libnvdimm vmw_pvscsi pcnet32 mii drm_panel_orientation_quirks dm_mirror dm_region_hash dm_log dm_mod fuse
[1349046.660445] CPU: 3 PID: 9648 Comm: pool Kdump: loaded Tainted: P        W  OE  ------------ T 3.10.0-1160.45.1.el7.x86_64 #1
[1349046.661553] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 12/12/2018
[1349046.662619] task: ffff95da56745280 ti: ffff95dc3c980000 task.ti: ffff95dc3c980000
[1349046.663655] RIP: 0010:[<ffffffffc0932119>]  [<ffffffffc0932119>] vmfs_same_sb+0x19/0x50 [secfs2] <<--
[1349046.664776] RSP: 0018:ffff95dc3c983dd0  EFLAGS: 00010282
[1349046.665908] RAX: 0000000000000001 RBX: ffff95dc2700bf08 RCX: 0000000000000001
[1349046.666956] RDX: ffff95dc27154480 RSI: ffff95dc3cd10800 RDI: ffff95cef4300008
[1349046.667971] RBP: ffff95dc3c983dd0 R08: ffffffff8c88edf7 R09: 0000000000000000
[1349046.668961] R10: ffff95cef4300008 R11: 000000000000b980 R12: 0000000000000001
[1349046.669885] R13: ffff95dc3cd10800 R14: ffff95cef4300008 R15: ffff95dc3cd10800
[1349046.670847] FS:  00007f5d4ad36700(0000) GS:ffff95dc7fcc0000(0000) knlGS:0000000000000000
[1349046.671759] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[1349046.672664] CR2: 0000000000000009 CR3: 0000000ffbc2e000 CR4: 00000000003607e0
[1349046.673604] Call Trace:
[1349046.674555]  [<ffffffffc099385d>] vmfs_freeze_thaw_list+0x5d/0xf0 [secfs2] <<--
[1349046.675513]  [<ffffffffc093122b>] op_freeze_fs+0x8b/0x310 [secfs2] <<--
[1349046.676496]  [<ffffffff8c0518eb>] freeze_super+0xbb/0x130
[1349046.677435]  [<ffffffff8c063b44>] do_vfs_ioctl+0x414/0x5b0
[1349046.678350]  [<ffffffff8c063d81>] SyS_ioctl+0xa1/0xc0
[1349046.679308]  [<ffffffff8c595f92>] system_call_fastpath+0x25/0x2a
[1349046.680214] Code: 1e d5 1c 00 e8 89 42 05 00 e9 af fd ff ff 0f 1f 40 00 0f 1f 44 00 00 55 48 8b 52 08 48 89 e5 48 85 d2 74 36 48 8b 82 50 03 00 00 <4c> 8b 40 08 4d 85 c0 74 26 31 c0 48 3b 17 74 06 49 39 70 08 74 
[1349046.682195] RIP  [<ffffffffc0932119>] vmfs_same_sb+0x19/0x50 [secfs2] <<--
[1349046.683237]  RSP <ffff95dc3c983dd0>
[1349046.684210] CR2: 0000000000000009