Issue

• multipath -ll command aborts() due to memory corruption on RHEL 6.

# multipath -ll
3514f0c5f27e0019c dm-1 XtremIO,XtremApp
size=500G features='0' hwhandler='0' wp=rw
`-+- policy='queue-length 0' prio=1 status=active
  |- 3:0:0:1 sdb 8:16  active ready running
  |- 3:0:1:1 sdc 8:32  active ready running
  |- 3:0:2:1 sdd 8:48  active ready running
  |- 3:0:4:1 sdf 8:80  active ready running
  |- 3:0:3:1 sde 8:64  active ready running
  |- 3:0:5:1 sdg 8:96  active ready running
  |- 3:0:6:1 sdh 8:112 active ready running
  |- 3:0:7:1 sdi 8:128 active ready running
  |- 4:0:0:1 sdj 8:144 active ready running
  |- 4:0:1:1 sdk 8:160 active ready running
  |- 4:0:2:1 sdl 8:176 active ready running
  |- 4:0:3:1 sdm 8:192 active ready running
  |- 4:0:4:1 sdn 8:208 active ready running
  |- 4:0:5:1 sdo 8:224 active ready running
  |- 4:0:6:1 sdp 8:240 active ready running
  `- 4:0:7:1 sdq 65:0  active ready running
*** glibc detected *** multipath: free(): invalid next size (fast): 0x0000000000e12a50 ***
======= Backtrace: =========
/lib64/libc.so.6[0x3e91a75e66]
/lib64/libc.so.6[0x3e91a789b3]
/lib64/libmultipath.so(free_multipath+0x5d)[0x32dda16f5d]
/lib64/libmultipath.so(free_multipathvec+0x4d)[0x32dda1701d]
multipath[0x402195]
/lib64/libc.so.6(__libc_start_main+0xfd)[0x3e91a1ed5d]
multipath[0x401b99]
Aborted (core dumped)

• multipath fails with memory error.

*** glibc detected *** multipath: malloc(): memory corruption: 0x00000000022b5e70 ***
======= Backtrace: =========
/lib64/libc.so.6[0x3107275dee]
/lib64/libc.so.6[0x310727a3aa]
/lib64/libc.so.6(__libc_malloc+0x5c)[0x310727aaac]
/lib64/libc.so.6(__strdup+0x22)[0x3107280ed2]
/lib64/libdevmapper.so.1.02[0x3109241971]
/lib64/libdevmapper.so.1.02(dm_task_add_target+0x15)[0x3109210515]
/lib64/libdevmapper.so.1.02(dm_task_run+0x975)[0x3109244c25]
/lib64/libmultipath.so(dm_type+0x88)[0x3108e0fe08]
/lib64/libmultipath.so(dm_get_maps+0xc9)[0x3108e101f9]
multipath[0x402227]
/lib64/libc.so.6(__libc_start_main+0xfd)[0x310721ed1d]
multipath[0x401aa9]

Aborted (core dumped)