heap-use-after-free in decompileINCR_DECR (decompile.c)

[cxlzff]

==10344==ERROR: AddressSanitizer: heap-use-after-free on address 0x60e0000000d0 at pc 0x000000541f41 bp 0x7ffd10e1ecc0 sp 0x7ffd10e1ecb8
READ of size 1 at 0x60e0000000d0 thread T0
#0 0x541f40 in OpCode /libming-ming-0_4_8/util/decompile.c:868:37
#1 0x541f40 in decompileINCR_DECR /libming-ming-0_4_8/util/decompile.c:1440
#2 0x522d5b in decompileAction /libming-ming-0_4_8/util/decompile.c:3222:10
#3 0x55e7b2 in decompileActions /libming-ming-0_4_8/util/decompile.c:3401:6
#4 0x55e7b2 in decompile5Action /libming-ming-0_4_8/util/decompile.c:3423
#5 0x5113ca in outputSWF_DEFINEBUTTON2 /libming-ming-0_4_8/util/outputscript.c:932:2
#6 0x517b57 in outputBlock /libming-ming-0_4_8/util/outputscript.c:2079:4
#7 0x51e973 in readMovie /libming-ming-0_4_8/util/main.c:277:4
#8 0x51e973 in main /libming-ming-0_4_8/util/main.c:350
#9 0x7f0fbe73b82f in __libc_start_main /build/glibc-LK5gWL/glibc-2.23/csu/../csu/libc-start.c:291
#10 0x419fa8 in _start (/libming-ming-0_4_8/util/swftophp+0x419fa8)

0x60e0000000d0 is located 144 bytes inside of 152-byte region [0x60e000000040,0x60e0000000d8)
freed by thread T0 here:
#0 0x4d2a38 in realloc /fuzzer/build/llvm_tools/llvm-4.0.0.src/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:79
#1 0x572e7d in parseSWF_DEFINEBUTTON2 /libming-ming-0_4_8/util/parser.c:1571:50

previously allocated by thread T0 here:
#0 0x4d2820 in calloc /fuzzer/build/llvm_tools/llvm-4.0.0.src/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:74
#1 0x572d52 in parseSWF_DEFINEBUTTON2 /libming-ming-0_4_8/util/parser.c:1567:26

SUMMARY: AddressSanitizer: heap-use-after-free /libming-ming-0_4_8/util/decompile.c:868:37 in OpCode
Shadow bytes around the buggy address:
0x0c1c7fff7fc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c1c7fff7fd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c1c7fff7fe0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c1c7fff7ff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c1c7fff8000: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd
=>0x0c1c7fff8010: fd fd fd fd fd fd fd fd fd fd[fd]fa fa fa fa fa
0x0c1c7fff8020: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 00
0x0c1c7fff8030: 00 00 00 00 00 00 00 00 fa fa fa fa fa fa fa fa
0x0c1c7fff8040: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c1c7fff8050: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c1c7fff8060: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
==10344==ABORTING