sudo-baron-samedit-8.cpp

//glibc_2.17-322.el7_9/malloc/malloc.c
static void*
_int_malloc(mstate av, size_t bytes)
{
  ...
  for(;;) {

    int iters = 0;
    while ( (victim = unsorted_chunks(av)->bk) != unsorted_chunks(av)) {
      bck = victim->bk;
      if (__builtin_expect (victim->size <= 2 * SIZE_SZ, 0)
          || __builtin_expect (victim->size > av->system_mem, 0))
        {
          mutex_unlock(&av->mutex);
          malloc_printerr (check_action, "malloc(): memory corruption",
[c1]                       chunk2mem (victim), av);
          mutex_lock(&av->mutex);
        }
      size = chunksize(victim);