Server crashed with exception RIP: fget_light+15

Issue

• Server crashed with "RIP: fget_light+15"

[...]
[ 1344.119905] BUG: unable to handle kernel NULL pointer dereference at 0000000000000758
[ 1344.119968] IP: [<ffffffff8121c87f>] fget_light+0xf/0xd0
[ 1344.119993] PGD 0 
[ 1344.120028] Oops: 0000 [#1] SMP 
[ 1344.120048] Modules linked in: nfsv3 nfs fscache intel_powerclamp coretemp intel_rapl iosf_mbi kvm irqbypass crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd iTCO_wdt iTCO_vendor_support mxm_wmi ses enclosure mei_me ipmi_devintf scsi_transport_sas mei sb_edac sg pcspkr edac_core lpc_ich shpchp ipmi_si ipmi_msghandler wmi acpi_pad acpi_power_meter nfsd auth_rpcgss nfs_acl lockd grace sunrpc binfmt_misc ip_tables xfs libcrc32c sd_mod crc_t10dif crct10dif_generic i2c_algo_bit drm_kms_helper syscopyarea sysfillrect crct10dif_pclmul sysimgblt crct10dif_common fb_sys_fops crc32c_intel ttm drm ahci libahci libata i2c_core megaraid_sas enic(OE) fjes dm_mirror dm_region_hash dm_log dm_mod
[ 1344.120489] CPU: 50 PID: 15824 Comm: su Tainted: G           OE  ------------   3.10.0-514.26.2.el7.x86_64 #1
[ 1344.120519] Hardware name: Cisco Systems Inc UCSC-C240-M4SX/UCSC-C240-M4SX, BIOS C240M4.2.0.13d.0.0812161132 08/12/2016
[ 1344.120750] task: ffff883ffe8a4e70 ti: ffff883fc6aa4000 task.ti: ffff883fc6aa4000
[ 1344.121148] RIP: 0010:[<ffffffff8121c87f>]  [<ffffffff8121c87f>] fget_light+0xf/0xd0
[ 1344.121543] RSP: 0018:ffff883fc6aa7f30  EFLAGS: 00010246
[ 1344.121783] RAX: 0000000000000000 RBX: 00007ffcd0030c70 RCX: 0000000000004000
[ 1344.122024] RDX: 0000000000000010 RSI: ffff883fc6aa7f48 RDI: 0000000000000004
[ 1344.122232] RBP: ffff883fc6aa7f78 R08: 0000000000000000 R09: 0000000000000000
[ 1344.122441] R10: 0000000000004000 R11: 0000000000000246 R12: 00007f042bf116c0
[ 1344.122648] R13: 00007ffcd0030c80 R14: 0000000000000010 R15: 00007f042bf116c0
[ 1344.122858] FS:  00007f042bf11740(0000) GS:ffff883fff380000(0000) knlGS:0000000000000000
[ 1344.123269] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1344.123473] CR2: 0000000000000758 CR3: 0000003fec293000 CR4: 00000000003407e0
[ 1344.123700] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1344.123909] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1344.124117] Stack:
[ 1344.124309]  ffff883fc6aa7f78 ffffffff811ff3f2 0000000000000000 00007f042aad81a0
[ 1344.124711]  00000000a7a2ff36 00007ffcd0030c70 00007f042bf116c0 0000000000000000
[ 1344.125113]  00007f042aad81a0 0000000000000000 ffffffff81697709 0000000000000246
[ 1344.125536] Call Trace:
[ 1344.125736]  [<ffffffff811ff3f2>] ? SyS_read+0x32/0xe0
[ 1344.125962]  [<ffffffff81697709>] system_call_fastpath+0x16/0x1b
[ 1344.126166] Code: b1 0f 48 39 f0 74 07 48 89 c6 eb e5 31 d2 48 89 d0 5d c3 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 65 48 8b 04 25 c0 cd 00 00 <48> 8b 80 58 07 00 00 c7 06 00 00 00 00 48 89 e5 8b 10 83 fa 01 
[ 1344.126981] RIP  [<ffffffff8121c87f>] fget_light+0xf/0xd0
[ 1344.127203]  RSP <ffff883fc6aa7f30>
[ 1344.127415] CR2: 0000000000000758