==127089== Memcheck, a memory error detector
==127089== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==127089== Using Valgrind-3.15.0 and LibVEX; rerun with -h for copyright info
==127089== Command: ./invalid_read-buffer_overread
==127089== 
==127089== Invalid write of size 1
==127089==    at 0x40066B: repeat_char (invalid_read-buffer_overread.c:6)
==127089==    by 0x4006E5: main (invalid_read-buffer_overread.c:17)
==127089==  Address 0x5205043 is 0 bytes after a block of size 3 alloc'd
==127089==    at 0x4C29F73: malloc (vg_replace_malloc.c:309)
==127089==    by 0x400631: repeat_char (invalid_read-buffer_overread.c:2)
==127089==    by 0x4006E5: main (invalid_read-buffer_overread.c:17)
==127089== 
==127089== Invalid read of size 1
==127089==    at 0x4006BE: print_string (invalid_read-buffer_overread.c:11)
==127089==    by 0x4006F5: main (invalid_read-buffer_overread.c:18)
==127089==  Address 0x5205043 is 0 bytes after a block of size 3 alloc'd
==127089==    at 0x4C29F73: malloc (vg_replace_malloc.c:309)
==127089==    by 0x400631: repeat_char (invalid_read-buffer_overread.c:2)
==127089==    by 0x4006E5: main (invalid_read-buffer_overread.c:17)
==127089== 
@@@==127089== 
==127089== HEAP SUMMARY:
==127089==     in use at exit: 0 bytes in 0 blocks
==127089==   total heap usage: 1 allocs, 1 frees, 3 bytes allocated
==127089== 
==127089== All heap blocks were freed -- no leaks are possible
==127089== 
==127089== For lists of detected and suppressed errors, rerun with: -s
==127089== ERROR SUMMARY: 2 errors from 2 contexts (suppressed: 0 from 0)