SEGV in matio-1.5.17/src/mat.c:1558 Mat_VarFree

[Binbin Li]

SEGV in matio-1.5.17/src/mat.c:1558 Mat_VarFree. Detial log as flollow: (POC in attachment)

lbb@lbb: ./matio-1.5.17/build/bin/matdump poc_m017

InflateData: inflate returned data error
InflateData: inflate returned data error
...
InflateSkip: inflate returned data error
InflateDataType: inflate returned data error
InflateData: inflate returned data error
InflateSkip: inflate returned data error
      Name: struct1
      Rank: 2
Class Type: Structure
Fields[2] {
      Name: a
      Rank: 2
Dimensions: 1 x 1
Class Type: Sparse Array (complex)
      Name: b
      Rank: 2
Dimensions: 1 x 1
Class Type: Sparse Array (complex)
}
ASAN:SIGSEGV
=================================================================
==15528==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x7fe9950b01b2 bp 0x7ffebe07cd70 sp 0x7ffebe07cca0 T0)
    #0 0x7fe9950b01b1 in Mat_VarFree /matio-1.5.17/src/mat.c:1558:26
    #1 0x7fe9950b0690 in Mat_VarFree /matio-1.5.17/src/mat.c:1476:25
    #2 0x4dc4ea in main /matio-1.5.17/tools/matdump.c:944:17
    #3 0x7fe993eb382f in __libc_start_main /build/glibc-LK5gWL/glibc-2.23/csu/../csu/libc-start.c:291
    #4 0x435b18 in _start (/matio-1.5.17/build/bin/matdump+0x435b18)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /matio-1.5.17/src/mat.c:1558 Mat_VarFree
==15528==ABORTING