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==17645==ERROR: AddressSanitizer: heap-buffer-overflow on address 0xf4800f74 at pc 0xf71eec81 bp 0xffd0e7a8 sp 0xffd0e378
WRITE of size 37 at 0xf4800f74 thread T0
    #0 0xf71eec80 in __interceptor_vsprintf (/usr/lib/libasan.so.3+0x9cc80)
    #1 0xf71eeec3 in __interceptor_sprintf (/usr/lib/libasan.so.3+0x9cec3)
    #2 0x807a57a in sdb_json_set /home/egeretto/Documents/sdb_afl/sdb/src/json.c:139
    #3 0x808b53c in sdb_querys /home/egeretto/Documents/sdb_afl/sdb/src/query.c:745
    #4 0x8091ebd in sdb_query /home/egeretto/Documents/sdb_afl/sdb/src/query.c:826
    #5 0x804a352 in main /home/egeretto/Documents/sdb_afl/sdb/src/main.c:486
    #6 0xf6f8f1c5 in __libc_start_main (/usr/lib/libc.so.6+0x181c5)
    #7 0x804c50f  (/home/egeretto/Documents/sdb_afl/sdb_asan+0x804c50f)

0xf4800f74 is located 0 bytes to the right of 36-byte region [0xf4800f50,0xf4800f74)
allocated by thread T0 here:
    #0 0xf72317c4 in malloc (/usr/lib/libasan.so.3+0xdf7c4)
    #1 0x807a21f in sdb_json_set /home/egeretto/Documents/sdb_afl/sdb/src/json.c:131

SUMMARY: AddressSanitizer: heap-buffer-overflow (/usr/lib/libasan.so.3+0x9cc80) in __interceptor_vsprintf
Shadow bytes around the buggy address:
  0x3e900190: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x3e9001a0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x3e9001b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x3e9001c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x3e9001d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x3e9001e0: fa fa fa fa fa fa fa fa fa fa 00 00 00 00[04]fa
  0x3e9001f0: fa fa 00 00 00 00 01 fa fa fa 00 00 00 00 01 fa
  0x3e900200: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x3e900210: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x3e900220: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x3e900230: 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
  Heap right redzone:      fb
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack partial redzone:   f4
  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
==17645==ABORTING