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==15700==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x608000000175 at pc 0x557f4a3c44d9 bp 0x7ffc941cc2b0 sp 0x7ffc941cc2a0
READ of size 1 at 0x608000000175 thread T0
    #0 0x557f4a3c44d8 in scan_node_contents /home/nathaniel/src/git/gnu.org/texinfo/info/info-utils.c:1676
    #1 0x557f4a3dea14 in info_node_of_tag_ext /home/nathaniel/src/git/gnu.org/texinfo/info/nodes.c:1284
    #2 0x557f4a3dee08 in info_node_of_tag /home/nathaniel/src/git/gnu.org/texinfo/info/nodes.c:1324
    #3 0x557f4a3dd6ed in info_get_node_of_file_buffer /home/nathaniel/src/git/gnu.org/texinfo/info/nodes.c:1069
    #4 0x557f4a3dd25b in info_get_node_with_defaults /home/nathaniel/src/git/gnu.org/texinfo/info/nodes.c:991
    #5 0x557f4a3dd325 in info_get_node /home/nathaniel/src/git/gnu.org/texinfo/info/nodes.c:1014
    #6 0x557f4a3f2484 in dump_node_to_stream /home/nathaniel/src/git/gnu.org/texinfo/info/session.c:3768
    #7 0x557f4a3f22f7 in dump_nodes_to_file /home/nathaniel/src/git/gnu.org/texinfo/info/session.c:3731
    #8 0x557f4a3ca90a in main /home/nathaniel/src/git/gnu.org/texinfo/info/info.c:1065
    #9 0x7f7c81e2cbf6 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21bf6)
    #10 0x557f4a3aa7e9 in _start (/home/nathaniel/src/git/gnu.org/texinfo/info/ginfo+0x237e9)

0x608000000175 is located 0 bytes to the right of 85-byte region [0x608000000120,0x608000000175)
allocated by thread T0 here:
    #0 0x7f7c82504b40 in __interceptor_malloc (/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb40)
    #1 0x557f4a40c5ec in xmalloc /home/nathaniel/src/git/gnu.org/texinfo/gnulib/lib/xmalloc.c:53
    #2 0x557f4a3b85c8 in filesys_read_info_file /home/nathaniel/src/git/gnu.org/texinfo/info/filesys.c:342
    #3 0x557f4a3db6f9 in info_load_file /home/nathaniel/src/git/gnu.org/texinfo/info/nodes.c:702
    #4 0x557f4a3db148 in info_find_file /home/nathaniel/src/git/gnu.org/texinfo/info/nodes.c:636
    #5 0x557f4a3dd23d in info_get_node_with_defaults /home/nathaniel/src/git/gnu.org/texinfo/info/nodes.c:986
    #6 0x557f4a3dd325 in info_get_node /home/nathaniel/src/git/gnu.org/texinfo/info/nodes.c:1014
    #7 0x557f4a3f2484 in dump_node_to_stream /home/nathaniel/src/git/gnu.org/texinfo/info/session.c:3768
    #8 0x557f4a3f22f7 in dump_nodes_to_file /home/nathaniel/src/git/gnu.org/texinfo/info/session.c:3731
    #9 0x557f4a3ca90a in main /home/nathaniel/src/git/gnu.org/texinfo/info/info.c:1065
    #10 0x7f7c81e2cbf6 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21bf6)

SUMMARY: AddressSanitizer: heap-buffer-overflow /home/nathaniel/src/git/gnu.org/texinfo/info/info-utils.c:1676 in scan_node_contents
Shadow bytes around the buggy address:
  0x0c107fff7fd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c107fff7fe0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c107fff7ff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c107fff8000: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 fa
  0x0c107fff8010: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 00 06
=>0x0c107fff8020: fa fa fa fa 00 00 00 00 00 00 00 00 00 00[05]fa
  0x0c107fff8030: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c107fff8040: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c107fff8050: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c107fff8060: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c107fff8070: 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
==15700==ABORTING