gpt2_model_load: using CPU backend
=================================================================
==325537==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x74253f300258 at pc 0x742543cee303 bp 0x7ffda66c0170 sp 0x7ffda66bf918
WRITE of size 4 at 0x74253f300258 thread T0
    #0 0x742543cee302 in memcpy ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors_memintrinsics.inc:115
    #1 0x7425418e90bf in std::basic_streambuf<char, std::char_traits<char> >::xsgetn(char*, long) (/lib/x86_64-linux-gnu/libstdc++.so.6+0x1670bf) (BuildId: ca77dae775ec87540acd7218fa990c40d1c94ab1)
    #2 0x7425418ac0e9 in std::basic_filebuf<char, std::char_traits<char> >::xsgetn(char*, long) (/lib/x86_64-linux-gnu/libstdc++.so.6+0x12a0e9) (BuildId: ca77dae775ec87540acd7218fa990c40d1c94ab1)
    #3 0x7425418ba140 in std::istream::read(char*, long) (/lib/x86_64-linux-gnu/libstdc++.so.6+0x138140) (BuildId: ca77dae775ec87540acd7218fa990c40d1c94ab1)
    #4 0x5ba4d4bd65ce in gpt2_model_load(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, gpt2_model&, gpt_vocab&, int, int) /workspace/GGML/repos/ggml/examples/gpt-2/main-backend.cpp:376
    #5 0x5ba4d4bdc78b in main /workspace/GGML/repos/ggml/examples/gpt-2/main-backend.cpp:818
    #6 0x742540f841c9  (/lib/x86_64-linux-gnu/libc.so.6+0x2a1c9) (BuildId: 274eec488d230825a136fa9c4d85370fed7a0a5e)
    #7 0x742540f8428a in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2a28a) (BuildId: 274eec488d230825a136fa9c4d85370fed7a0a5e)
    #8 0x5ba4d4bcbda4 in _start (/workspace/GGML/repos/ggml/build-asan-explicit/bin/gpt-2-backend+0x21eda4) (BuildId: faf777c34f952bcf78181c4a19b97accd58a18cf)

Address 0x74253f300258 is located in stack of thread T0 at offset 600 in frame
    #0 0x5ba4d4bcd3f1 in gpt2_model_load(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, gpt2_model&, gpt_vocab&, int, int) /workspace/GGML/repos/ggml/examples/gpt-2/main-backend.cpp:103

  This frame has 65 object(s):
    [48, 49) '<unknown>'
    [64, 65) '<unknown>'
    [80, 81) '<unknown>'
    [96, 97) '<unknown>'
    [112, 113) '<unknown>'
    [128, 129) '<unknown>'
    [144, 145) '<unknown>'
    [160, 164) 'magic' (line 114)
    [176, 180) 'n_vocab' (line 148)
    [192, 196) 'i' (line 160)
    [208, 212) 'len' (line 161)
    [224, 228) 'n_dims' (line 361)
    [240, 244) 'length' (line 362)
    [256, 260) 'ttype' (line 363)
    [272, 280) '<unknown>'
    [304, 312) '<unknown>'
    [336, 360) 'buf' (line 158)
    [400, 424) 'params' (line 189)
    [464, 488) 'params' (line 318)
    [528, 552) 'read_buf' (line 358)
    [592, 600) 'ne' (line 374) <== Memory access at offset 600 overflows this variable
    [624, 656) 'word' (line 157)
    [688, 720) '<unknown>'
    [752, 784) '<unknown>'
    [816, 848) '<unknown>'
    [880, 912) '<unknown>'
    [944, 976) '<unknown>'
    [1008, 1040) '<unknown>'
    [1072, 1104) '<unknown>'
    [1136, 1168) '<unknown>'
    [1200, 1232) '<unknown>'
    [1264, 1296) '<unknown>'
    [1328, 1360) '<unknown>'
    [1392, 1424) '<unknown>'
    [1456, 1488) '<unknown>'
    [1520, 1552) '<unknown>'
    [1584, 1616) '<unknown>'
    [1648, 1680) '<unknown>'
    [1712, 1744) '<unknown>'
    [1776, 1808) '<unknown>'
    [1840, 1872) '<unknown>'
    [1904, 1936) '<unknown>'
    [1968, 2000) '<unknown>'
    [2032, 2064) '<unknown>'
    [2096, 2128) '<unknown>'
    [2160, 2192) '<unknown>'
    [2224, 2256) '<unknown>'
    [2288, 2320) '<unknown>'
    [2352, 2384) '<unknown>'
    [2416, 2448) '<unknown>'
    [2480, 2512) '<unknown>'
    [2544, 2576) '<unknown>'
    [2608, 2640) '<unknown>'
    [2672, 2704) '<unknown>'
    [2736, 2768) '<unknown>'
    [2800, 2832) '<unknown>'
    [2864, 2896) '<unknown>'
    [2928, 2960) '<unknown>'
    [2992, 3024) '<unknown>'
    [3056, 3088) '<unknown>'
    [3120, 3152) '<unknown>'
    [3184, 3216) '<unknown>'
    [3248, 3280) '<unknown>'
    [3312, 3344) 'name' (line 380)
    [3376, 3896) 'fin' (line 106)
HINT: this may be a false positive if your program uses some custom stack unwind mechanism, swapcontext or vfork
      (longjmp and C++ exceptions *are* supported)
SUMMARY: AddressSanitizer: stack-buffer-overflow ../../../../src/libsanitizer/sanitizer_common/sanitizer_common_interceptors_memintrinsics.inc:115 in memcpy
Shadow bytes around the buggy address:
  0x74253f2fff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x74253f300000: f1 f1 f1 f1 f1 f1 f8 f2 f8 f2 f8 f2 f8 f2 f8 f2
  0x74253f300080: f8 f2 01 f2 f8 f2 f8 f2 f8 f2 f8 f2 04 f2 04 f2
  0x74253f300100: 04 f2 00 f2 f2 f2 00 f2 f2 f2 f8 f8 f8 f2 f2 f2
  0x74253f300180: f2 f2 f8 f8 f8 f2 f2 f2 f2 f2 f8 f8 f8 f2 f2 f2
=>0x74253f300200: f2 f2 00 00 00 f2 f2 f2 f2 f2 00[f2]f2 f2 f8 f8
  0x74253f300280: f8 f8 f2 f2 f2 f2 f8 f8 f8 f8 f2 f2 f2 f2 f8 f8
  0x74253f300300: f8 f8 f2 f2 f2 f2 f8 f8 f8 f8 f2 f2 f2 f2 f8 f8
  0x74253f300380: f8 f8 f2 f2 f2 f2 f8 f8 f8 f8 f2 f2 f2 f2 f8 f8
  0x74253f300400: f8 f8 f2 f2 f2 f2 f8 f8 f8 f8 f2 f2 f2 f2 f8 f8
  0x74253f300480: f8 f8 f2 f2 f2 f2 f8 f8 f8 f8 f2 f2 f2 f2 f8 f8
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
==325537==ABORTING