"BUG: unable to handle kernel paging request at xxxxxxxxxxx" in the code path of module 'secfs2'

Issue

• BUG: unable to handle kernel paging request at 00007f84c41be000 in the code path of third party module secfs2

[..]
[2274900.746751] ffff9941b0dc2488 vm_free Error detected 0 (bad memhead)
[2274900.747402] DBG tid:55418 _vm_free(207): FreeBug addr ffff9941b0dc2488 nodeb /home/condor/condor-7.2.1/local.brh7-64c/execute/dir_4583/_obj_fspem_64_perf_vor_klinux_3.10.0-1127.el7.x86_64/vmcore/sig/vm_sigcache.c 454 cache_delete_cb+0x27/0x50 [secfs2] vm_chash_store+0x12d/0x170 [secfs2] vmfs_sigcache_sign+0x2ce/0x4e0 [secfs2] vmfs_sigcache_sign_both+0x44/0xc0 [secfs2]
[2274900.949290] ffff991c7a694e48 vm_free Error detected 0 (bad memhead)
[2274900.949962] DBG tid:55450 _vm_free(207): FreeBug addr ffff991c7a694e48 nodeb /home/condor/condor-7.2.1/local.brh7-64c/execute/dir_4583/_obj_fspem_64_perf_vor_klinux_3.10.0-1127.el7.x86_64/vmcore/sig/vm_sigcache.c 454 cache_delete_cb+0x27/0x50 [secfs2] vm_chash_store+0x12d/0x170 [secfs2] vmfs_sigcache_sign+0x2ce/0x4e0 [secfs2] vmfs_sigcache_sign_both+0x44/0xc0 [secfs2]
[2274937.304199] ffff9911c2aeac08 vm_free Error detected c2aeabe0 (bad memhead)
[2274937.304555] BUG: unable to handle kernel paging request at 00007f84c41be000
[2274937.304561] IP: [<ffffffffb84281e4>] __kmalloc+0x94/0x230
[2274937.304563] PGD 8000001782733067 PUD 144b8e4067 PMD 17ecef6067 PTE 800000139e49e867
[2274937.304564] Oops: 0001 [#1] SMP 
[2274937.304597] Modules linked in: ktap_108055(OE) oracleacfs(POE) oracleadvm(POE) oracleoks(POE) joydev tcp_diag udp_diag inet_diag unix_diag af_packet_diag netlink_diag secvm2(POE) rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver secfs2(POE) nfsv3 nfs_acl nfs lockd grace fscache team_mode_activebackup team rpcrdma sunrpc ib_isert iscsi_target_mod ib_iser libiscsi scsi_transport_iscsi ib_srpt target_core_mod ib_srp scsi_transport_srp ib_ipoib rdma_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm dm_service_time iTCO_wdt sb_edac iTCO_vendor_support intel_powerclamp coretemp intel_rapl iosf_mbi kvm_intel kvm irqbypass crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd pcspkr mgag200 i2c_algo_bit ttm drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ocrdma(T) drm
[2274937.304614]  ib_core lpc_ich hpilo i2c_i801 drm_panel_orientation_quirks hpwdt ioatdma dca pcc_cpufreq ipmi_si sg ipmi_devintf ipmi_msghandler acpi_power_meter wmi fuse dm_multipath binfmt_misc ip_tables xfs libcrc32c sd_mod lpfc nvmet_fc nvmet crc_t10dif crct10dif_generic tg3 crct10dif_pclmul crc32c_intel nvme_fc nvme_fabrics serio_raw nvme_core hpsa be2net ptp scsi_transport_fc pps_core scsi_tgt scsi_transport_sas crct10dif_common dm_mirror dm_region_hash dm_log dm_mod
[2274937.304617] CPU: 30 PID: 1516 Comm: exectask Kdump: loaded Tainted: P           OE  ------------ T 3.10.0-1127.el7.x86_64 #1
[2274937.304618] Hardware name: HP ProLiant DL380 Gen9/ProLiant DL380 Gen9, BIOS P89 05/21/2018
[2274937.304618] task: ffff9911710d9070 ti: ffff990a10340000 task.ti: ffff990a10340000
[2274937.304621] RIP: 0010:[<ffffffffb84281e4>]  [<ffffffffb84281e4>] __kmalloc+0x94/0x230
[2274937.304622] RSP: 0018:ffff990a10343cc0  EFLAGS: 00010286
[2274937.304623] RAX: 0000000000000000 RBX: 000000000000002e RCX: 000000000a24dacb
[2274937.304623] RDX: 000000000a24daca RSI: 0000000000000000 RDI: 0000000000000005
[2274937.304624] RBP: ffff990a10343cf0 R08: 000000000001f0a0 R09: ffffffffc0b54de3
[2274937.304625] R10: ffff990a3fc03b00 R11: ffffe470640aba80 R12: 00000000000000d0
[2274937.304626] R13: 00007f84c41be000 R14: 000000000000002e R15: ffff990a3fc03b00
[2274937.304627] FS:  0000000000000000(0000) GS:ffff9918ffc40000(0000) knlGS:0000000000000000
[2274937.304628] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[2274937.304629] CR2: 00007f84c41be000 CR3: 0000001432674000 CR4: 00000000003607e0
[2274937.304630] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[2274937.304631] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[2274937.304631] Call Trace:
[2274937.304697]  [<ffffffffc0b54de3>] ? sys_malloc+0x13/0x20 [secfs2]
[2274937.304718]  [<ffffffffc0b54de3>] sys_malloc+0x13/0x20 [secfs2]
[2274937.304732]  [<ffffffffc0b12cdf>] lsys_malloc+0x1f/0x60 [secfs2]
[2274937.304747]  [<ffffffffc0b12f98>] _vm_malloc+0x18/0x30 [secfs2]
[2274937.304767]  [<ffffffffc0b529d2>] vm_os_get_proc_info+0xe2/0x240 [secfs2]
[2274937.304782]  [<ffffffffc0b17e18>] vm_sign_get+0xa8/0x2e0 [secfs2]
[2274937.304786]  [<ffffffffb844c0e0>] ? do_sys_open+0x220/0x220
[2274937.304800]  [<ffffffffc0b14b50>] vm_sign_verify_our_apps+0x120/0x1a0 [secfs2]
[2274937.304802]  [<ffffffffb844c0e0>] ? do_sys_open+0x220/0x220
[2274937.304812]  [<ffffffffc0afe977>] m_do_filp_open+0x57/0xa0 [secfs2]
[2274937.304814]  [<ffffffffb844bfe4>] do_sys_open+0x124/0x220
[2274937.304838]  [<ffffffffc0ba9192>] ? vm_tag_sf_xaction+0x82/0x200 [secfs2]
[2274937.304840]  [<ffffffffb844c0e0>] ? do_sys_open+0x220/0x220
[2274937.304842]  [<ffffffffb844c0fe>] SyS_open+0x1e/0x20
[2274937.304854]  [<ffffffffc0b07341>] m_sys_open+0xd1/0x2e0 [secfs2]
[2274937.304857]  [<ffffffffb8992ed2>] system_call_fastpath+0x25/0x2a
[2274937.304873] Code: 90 be 47 49 8b 50 08 4d 8b 28 49 8b 40 10 4d 85 ed 0f 84 29 01 00 00 48 85 c0 0f 84 20 01 00 00 49 63 42 20 48 8d 4a 01 4d 8b 02 <49> 8b 5c 05 00 4c 89 e8 65 49 0f c7 08 0f 94 c0 84 c0 74 b9 49 
[2274937.304875] RIP  [<ffffffffb84281e4>] __kmalloc+0x94/0x230
[2274937.304876]  RSP <ffff990a10343cc0>
[2274937.304876] CR2: 00007f84c41be000