==95590==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x603000001b88 at pc 0x0000009d5b6c bp 0x7ffea52c8fe0 sp 0x7ffea52c8fd8
READ of size 4 at 0x603000001b88 thread T0
    #0 0x9d5b6b in getstateflags cap_text.c:227:9
    #1 0x9d41eb in cap_to_text cap_text.c:255:8
    #2 0x999155 in lp_debug mod_cap.c:97:9
    #3 0x998a68 in cap_post_pass mod_cap.c:531:5
    #4 0x663b7f in pr_module_call modules.c:59:9
    #5 0x510d7c in _dispatch main.c:360:12
    #6 0x50c74f in pr_cmd_dispatch_phase main.c:701:19
    #7 0x51247b in pr_cmd_dispatch main.c:789:10
    #8 0x5061ef in cmd_loop main.c:931:7
    #9 0x51f12f in fork_server main.c:1494:3
    #10 0x519380 in daemon_loop main.c:1731:9
    #11 0x51734e in standalone_main main.c:1916:3
    #12 0x5161c3 in main main.c:2629:7

0x603000001b88 is located 0 bytes to the right of 24-byte region [0x603000001b70,0x603000001b88)
allocated by thread T0 here:
    #0 0x4d63f3 in malloc _asan_rtl_:3
    #1 0x9cc784 in cap_init cap_alloc.c:22:16
    #2 0x9cd49d in cap_get_proc cap_proc.c:16:14
    #3 0x999080 in lp_debug mod_cap.c:90:10
    #4 0x998a68 in cap_post_pass mod_cap.c:531:5
    #5 0x663b7f in pr_module_call modules.c:59:9
    #6 0x510d7c in _dispatch main.c:360:12
    #7 0x50c74f in pr_cmd_dispatch_phase main.c:701:19
    #8 0x51247b in pr_cmd_dispatch main.c:789:10
    #9 0x5061ef in cmd_loop main.c:931:7
    #10 0x51f12f in fork_server main.c:1494:3
    #11 0x519380 in daemon_loop main.c:1731:9
    #12 0x51734e in standalone_main main.c:1916:3
    #13 0x5161c3 in main main.c:2629:7
    #14 0x7f4eb5cabb6a in __libc_start_main libc-start.c:308:16

SUMMARY: AddressSanitizer: heap-buffer-overflow (/home/antonio/Downloads/proftpd/proftpd+0x9d5b6b)
Shadow bytes around the buggy address:
  0x0c067fff8320: 00 00 01 fa fa fa 00 00 00 fa fa fa 00 00 00 fa
  0x0c067fff8330: fa fa 00 00 00 fa fa fa 00 00 00 fa fa fa 00 00
  0x0c067fff8340: 00 fa fa fa 00 00 00 fa fa fa 00 00 00 fa fa fa
  0x0c067fff8350: 00 00 00 fa fa fa 00 00 00 fa fa fa 00 00 00 fa
  0x0c067fff8360: fa fa fd fd fd fa fa fa fd fd fd fa fa fa 00 00
=>0x0c067fff8370: 00[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c067fff8380: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c067fff8390: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c067fff83a0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c067fff83b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c067fff83c0: 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
  Shadow gap:              cc
==95590==ABORTING