Heap Buffer Overflow in function decompileCALLFUNCTION decompile.c 2864

[cxlzff]

==9626==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6120000005f0 at pc 0x0000005403e7 bp 0x7ffef2d933d0 sp 0x7ffef2d933c8
READ of size 1 at 0x6120000005f0 thread T0
#0 0x5403e6 in decompileCALLFUNCTION /libming-ming-0_4_8/util/decompile.c:2864:2
#1 0x52c925 in decompileAction /libming-ming-0_4_8/util/decompile.c:3264:10
#2 0x5471d0 in decompileActions /libming-ming-0_4_8/util/decompile.c:3401:6
#3 0x546dd6 in decompile5Action /libming-ming-0_4_8/util/decompile.c:3423:2
#4 0x51f261 in outputSWF_DOACTION /libming-ming-0_4_8/util/outputscript.c:1548:29
#5 0x51c3c9 in outputBlock /libming-ming-0_4_8/util/outputscript.c:2079:4
#6 0x5287fe in readMovie /libming-ming-0_4_8/util/main.c:277:4
#7 0x526ddc in main /libming-ming-0_4_8/util/main.c:350:2
#8 0x7f2fa17eb82f in __libc_start_main /build/glibc-LK5gWL/glibc-2.23/csu/../csu/libc-start.c:291
#9 0x419ed8 in _start (/libming-ming-0_4_8/util/swftophp+0x419ed8)

0x6120000005f0 is located 40 bytes to the right of 264-byte region [0x6120000004c0,0x6120000005c8)
allocated by thread T0 here:
#0 0x4d2750 in calloc /fuzzer/build/llvm_tools/llvm-4.0.0.src/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:74
#1 0x57ffc5 in parseSWF_DOACTION /libming-ming-0_4_8/util/parser.c:2428:3
#2 0x5298b5 in blockParse /libming-ming-0_4_8/util/blocktypes.c:145:14
#3 0x5285bb in readMovie /libming-ming-0_4_8/util/main.c:265:11
#4 0x526ddc in main /libming-ming-0_4_8/util/main.c:350:2
#5 0x7f2fa17eb82f in __libc_start_main /build/glibc-LK5gWL/glibc-2.23/csu/../csu/libc-start.c:291

SUMMARY: AddressSanitizer: heap-buffer-overflow /libming-ming-0_4_8/util/decompile.c:2864:2 in decompileCALLFUNCTION
Shadow bytes around the buggy address:
0x0c247fff8060: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd
0x0c247fff8070: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x0c247fff8080: fd fd fd fd fd fd fd fd fd fa fa fa fa fa fa fa
0x0c247fff8090: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00
0x0c247fff80a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c247fff80b0: 00 00 00 00 00 00 00 00 00 fa fa fa fa fa[fa]fa
0x0c247fff80c0: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00
0x0c247fff80d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c247fff80e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c247fff80f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c247fff8100: 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
==9626==ABORTING