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==24747==ERROR: AddressSanitizer: heap-use-after-free on address 0x61900000061b at pc 0x000000561eec bp 0x7fffe1def440 sp 0x7fffe1def438
READ of size 1 at 0x61900000061b thread T0
    #0 0x561eeb in skip_whitespaces /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:5777:38
    #1 0x55b0df in cur /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:5781:3
    #2 0x55e4f7 in parse_array /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:5925:13
    #3 0x55a7ef in parse_value /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:5963:7
    #4 0x5235a9 in doit /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:6045:10
    #5 0x5230e5 in json_walk /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:6421:3
    #6 0x5a5e8d in mjs_json_parse /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:11904:14
    #7 0x53eb63 in mjs_op_json_parse /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:11953:5
    #8 0x547e0f in mjs_execute /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:9489:11
    #9 0x54357c in mjs_exec_internal /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:9706:5
    #10 0x5439a8 in mjs_exec_file /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:9729:11
    #11 0x54c981 in main /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:12009:11
    #12 0x7f27e221582f in __libc_start_main /build/glibc-bfm8X4/glibc-2.23/csu/../csu/libc-start.c:291
    #13 0x419e88 in _start (/home/hongxu/FUSE/tests/mjs-ins/mjs_debug_main_FOT-new.out+0x419e88)

0x61900000061b is located 155 bytes inside of 902-byte region [0x619000000580,0x619000000906)
freed by thread T0 here:
    #0 0x4d2918 in realloc (/home/hongxu/FUSE/tests/mjs-ins/mjs_debug_main_FOT-new.out+0x4d2918)
    #1 0x50d7b9 in mbuf_resize /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:4908:26
    #2 0x54f8e6 in mjs_mk_string /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:13601:9
    #3 0x5a67b6 in frozen_cb /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:11811:13
    #4 0x55c15b in parse_string /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:5871:9
    #5 0x55a4b7 in parse_value /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:5957:7
    #6 0x55e38e in parse_array /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:5923:9
    #7 0x55a7ef in parse_value /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:5963:7
    #8 0x5235a9 in doit /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:6045:10
    #9 0x5230e5 in json_walk /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:6421:3
    #10 0x5a5e8d in mjs_json_parse /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:11904:14
    #11 0x53eb63 in mjs_op_json_parse /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:11953:5
    #12 0x547e0f in mjs_execute /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:9489:11
    #13 0x54357c in mjs_exec_internal /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:9706:5
    #14 0x5439a8 in mjs_exec_file /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:9729:11
    #15 0x54c981 in main /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:12009:11
    #16 0x7f27e221582f in __libc_start_main /build/glibc-bfm8X4/glibc-2.23/csu/../csu/libc-start.c:291

previously allocated by thread T0 here:
    #0 0x4d2918 in realloc (/home/hongxu/FUSE/tests/mjs-ins/mjs_debug_main_FOT-new.out+0x4d2918)
    #1 0x50d7b9 in mbuf_resize /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:4908:26
    #2 0x54f8e6 in mjs_mk_string /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:13601:9
    #3 0x546de1 in mjs_execute /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:9366:23
    #4 0x54357c in mjs_exec_internal /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:9706:5
    #5 0x5439a8 in mjs_exec_file /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:9729:11
    #6 0x54c981 in main /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:12009:11
    #7 0x7f27e221582f in __libc_start_main /build/glibc-bfm8X4/glibc-2.23/csu/../csu/libc-start.c:291

SUMMARY: AddressSanitizer: heap-use-after-free /home/hongxu/FUSE/tests/mjs-ins/../mjs/mjs.c:5777:38 in skip_whitespaces
Shadow bytes around the buggy address:
  0x0c327fff8070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c327fff8080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c327fff8090: 00 00 00 06 fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c327fff80a0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c327fff80b0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
=>0x0c327fff80c0: fd fd fd[fd]fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c327fff80d0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c327fff80e0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c327fff80f0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c327fff8100: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c327fff8110: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
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
==24747==ABORTING