The kernel got crashed due to the general protection fault occurred in a function session_dataready() from the 3rd party module [snumbd26]

Issue

• The kernel got crashed due to the general protection fault occurred in a function session_dataready() from the 3rd party module [snumbd26].

crash> log

...

[2419366.100524] general protection fault: 0000 [#1] SMP 
[2419366.100528] Modules linked in: snumbd26(POE) des_generic md4 nls_utf8 cifs ccm dns_resolver nfnetlink_queue nfnetlink_log bluetooth rfkill fuse uas usb_storage vhost_net vhost macvtap macvlan veth tcp_diag udp_diag inet_diag br_netfilter snapapi26(POE) devlink tun ip_set nfnetlink bridge stp llc overlay(T) rpcrdma sunrpc ib_isert iscsi_target_mod ib_iser libiscsi scsi_transport_iscsi ib_srpt target_core_mod ib_srp scsi_transport_srp scsi_tgt ib_ipoib rdma_ucm ib_ucm ib_uverbs ib_umad rdma_cm ib_cm iw_cm sb_edac intel_powerclamp coretemp intel_rapl iosf_mbi kvm_intel kvm irqbypass iTCO_wdt iTCO_vendor_support crc32_pclmul ghash_clmulni_intel joydev aesni_intel lrw gf128mul ib_core glue_helper ablk_helper cryptd ses enclosure scsi_transport_sas sg pcspkr lpc_ich ipmi_si ipmi_devintf ipmi_msghandler
[2419366.100567]  mei_me mei wmi shpchp acpi_pad acpi_power_meter xfs libcrc32c sd_mod crc_t10dif crct10dif_generic mgag200 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm ahci drm libahci libata crct10dif_pclmul crct10dif_common crc32c_intel megaraid_sas i2c_core enic dm_mirror dm_region_hash dm_log dm_mod [last unloaded: edd]
[2419366.100591] CPU: 25 PID: 19226 Comm: service_process Kdump: loaded Tainted: P           OE  ------------ T 3.10.0-862.3.2.el7.x86_64 #1
[2419366.100593] Hardware name: Cisco Systems Inc UCSC-C240-M4S2/UCSC-C240-M4S2, BIOS C240M4.2.0.4a.0.042220151400 04/22/2015
[2419366.100594] task: ffffa02de1d70000 ti: ffffa03e77f14000 task.ti: ffffa03e77f14000
[2419366.100596] RIP: 0010:[<ffffffff87f5a4a6>]  [<ffffffff87f5a4a6>] memcpy+0x6/0x110
[2419366.100603] RSP: 0018:ffffa03e77f17e58  EFLAGS: 00010287
[2419366.100604] RAX: fffe4b2ff9606000 RBX: ffffa04946a75600 RCX: 0000000000001000
[2419366.100605] RDX: 0000000000001000 RSI: fffe4b20c8ca3000 RDI: fffe4b2ff9606000
[2419366.100606] RBP: ffffa03e77f17ea8 R08: ffffa048575eeb38 R09: 00007f8525abf6e7
[2419366.100607] R10: 00007f85105bc8a0 R11: 0000000000000246 R12: ffffa04946a75718
[2419366.100609] R13: 0000000000000000 R14: ffffa03e77f14000 R15: 0000000000000000
[2419366.100610] FS:  00007f85105bd700(0000) GS:ffffa04dff440000(0000) knlGS:0000000000000000
[2419366.100611] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[2419366.100613] CR2: 00007f84c40c12c0 CR3: 000000103f172000 CR4: 00000000001627e0
[2419366.100614] Call Trace:
[2419366.100618]  [<ffffffffc0784588>] ? session_dataready+0x138/0x1a0 [snumbd26]
[2419366.100620]  [<ffffffffc0784613>] snumbdctl_write+0x23/0x40 [snumbd26]
[2419366.100626]  [<ffffffff87e1b010>] vfs_write+0xc0/0x1f0
[2419366.100627]  [<ffffffff87e1be3f>] SyS_write+0x7f/0xf0
[2419366.100634]  [<ffffffff8832082f>] system_call_fastpath+0x1c/0x21
[2419366.100635] Code: 69 88 31 c0 e8 ec 98 d3 ff 0f ae e8 0f 31 48 c1 e2 20 89 c0 48 09 c2 48 31 d3 e9 7b ff ff ff 90 90 90 90 90 90 48 89 f8 48 89 d1 <f3> a4 c3 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 20 4c 8b 06 4c 8b 
[2419366.100656] RIP  [<ffffffff87f5a4a6>] memcpy+0x6/0x110
[2419366.100657]  RSP <ffffa03e77f17e58>