While running sosreport or running systool command, the system crashes after calling qla2x00_sysfs_read_optrom

Issue

• While running SOSreport or systool command, the system crashes with messages printed similar to:

BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<ffffffff812a836b>] memcpy+0xb/0x120
PGD 0 
Oops: 0000 [#1] SMP 
last sysfs file: /sys/devices/pci0000:40/0000:40:03.0/0000:42:00.1/host8/bsg/fc_host8/dev
CPU 0 
...
Pid: 58050, comm: udevadm Not tainted 2.6.32-696.6.3.el6.x86_64 #1 Dell Inc. PowerEdge R620/0KCKR5
RIP: 0010:[<ffffffff812a836b>]  [<ffffffff812a836b>] memcpy+0xb/0x120
RSP: 0018:ffff881859237e10  EFLAGS: 00010246
RAX: ffff881858f02000 RBX: ffff881859237e50 RCX: 0000000000000200
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff881858f02000
RBP: ffff881859237e38 R08: 0000000000080000 R09: 00000000ffffffff
R10: 0000000000000002 R11: 0000000000000000 R12: 0000000000001000
R13: 0000000000001000 R14: ffff8838534b3000 R15: ffff881859a10840
FS:  00007ffff7fc97a0(0000) GS:ffff880028200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 0000001858dc2000 CR4: 00000000000407f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process udevadm (pid: 58050, threadinfo ffff881859234000, task ffff8818567f7520)
Stack:
 ffffffff811c35a0 ffff881859237e38 ffff881858f02000 ffff8838534b35c8
<d> 0000000000001000 ffff881859237e78 ffffffffa00d2f44 00000000ffffff9c
<d> 0000000000000000 ffff881829c7adc0 ffff881859237f48 00007fffffffc510
Call Trace:
 [<ffffffff811c35a0>] ? memory_read_from_buffer+0x50/0x70
 [<ffffffffa00d2f44>] qla2x00_sysfs_read_optrom+0x94/0xc0 [qla2xxx]
 [<ffffffff8121a796>] read+0x126/0x210
 [<ffffffff8119a675>] vfs_read+0xb5/0x1a0
 [<ffffffff8119b426>] ? fget_light_pos+0x16/0x50
 [<ffffffff8119a9c1>] sys_read+0x51/0xb0
 [<ffffffff810ee4ce>] ? __audit_syscall_exit+0x25e/0x290
 [<ffffffff8100b0d2>] system_call_fastpath+0x16/0x1b
Code: 49 89 70 50 19 c0 49 89 70 58 41 c6 40 4c 04 83 e0 fc 83 c0 08 41 88 40 4d c9 c3 90 90 90 90 90 48 89 f8 89 d1 c1 e9 03 83 e2 07 <f3> 48 a5 89 d1 f3 a4 c3 20 48 83 ea 20 4c 8b 06 4c 8b 4e 08 4c 
RIP  [<ffffffff812a836b>] memcpy+0xb/0x120
 RSP <ffff881859237e10>
CR2: 0000000000000000