Kernel panics at strcmp() function due to third party module hipsec.

Issue

• Kernel panics at strcmp() function of third party module hipsec.

BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<ffffffff812a2f6b>] strcmp+0xb/0x30
PGD 12f5c7067 PUD 166b01067 PMD 0 
Oops: 0000 [#1] SMP 
last sysfs file: /sys/devices/system/cpu/online
CPU 0 
Modules linked in: dm_snapshot dm_bufio hipsec(U) schook(U) 8021q garp stp llc vsock(U) dm_multipath ppdev parport_pc parport microcode vmware_balloon vmci(U) i2c_piix4 sg shpchp ext4 jbd2 mbcache crc32c_intel be2iscsi bnx2i cnic uio cxgb4i sd_mod crc_t10dif iw_cxgb4 iw_cm sr_mod cxgb4 cdrom cxgb3i libcxgbi iw_cxgb3 vmxnet3 ib_core ib_addr vmw_pvscsi ipv6 pata_acpi cxgb3 ata_generic mdio ata_piix libiscsi_tcp qla4xxx iscsi_boot_sysfs libiscsi scsi_transport_iscsi vmwgfx ttm drm_kms_helper drm i2c_core dm_mirror dm_region_hash dm_log dm_mod [last unloaded: speedstep_lib]

Pid: 14342, comm: bash Not tainted 2.6.32-696.1.1.el6.x86_64 #1 VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform
RIP: 0010:[<ffffffff812a2f6b>]  [<ffffffff812a2f6b>] strcmp+0xb/0x30
RSP: 0018:ffff88012a253d08  EFLAGS: 00010282
RAX: 0000000000000062 RBX: ffff8801320eae80 RCX: 0000000000000000
RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffff8801023186b8
RBP: ffff88012a253d08 R08: 0000000000000065 R09: 6c6f632f642e656c
R10: 632f642e656c6966 R11: 6f72702f6374652f R12: ffff8801023186b8
R13: ffff8801320eae80 R14: ffffffffa05d4d10 R15: ffff880105382000
FS:  00007fca840e5700(0000) GS:ffff880028200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000012209c000 CR4: 00000000000407f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process bash (pid: 14342, threadinfo ffff88012a250000, task ffff880102318040)
Stack:
 ffff88012a253d38 ffffffffa05d2a9a 0000000000000003 ffff88012a253dc8
<d> ffff880235da0000 0000000000000000 ffff88012a253d88 ffffffffa05d3384
<d> 0000000063cc064f 0000000000000000 ffff88012a253d88 0000000000000000
Call Trace:
 [<ffffffffa05d2a9a>] hip_search_exclusion_list+0x4a/0x60 [hipsec]
 [<ffffffffa05d3384>] hip_access_authorize+0x254/0x2d0 [hipsec]
 [<ffffffffa05d42f7>] hip_sys_openat+0xe7/0x4e0 [hipsec]
 [<ffffffff8106c480>] ? default_wake_function+0x0/0x20
 [<ffffffff81196bc0>] ? sys_open+0x0/0x30
 [<ffffffffa05d470a>] hip_sys_open+0x1a/0x22 [hipsec]
 [<ffffffffa05ca39d>] schook_stub_open+0x5d/0xb0 [schook]
 [<ffffffff8100b0d2>] system_call_fastpath+0x16/0x1b
Code: 84 ff 40 88 39 74 0d 48 83 c1 01 48 83 ea 01 75 e7 c6 01 00 c9 c3 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 0f 1f 40 00 0f b6 07 <0f> b6 16 48 83 c7 01 48 83 c6 01 38 d0 75 0e 84 c0 75 ea 31 c0 
RIP  [<ffffffff812a2f6b>] strcmp+0xb/0x30
 RSP <ffff88012a253d08>
CR2: 0000000000000000