Checking patch malloc/Makefile...
Hunk #1 succeeded at 424 (offset 13 lines).
Checking patch malloc/malloc.c...
Hunk #1 succeeded at 565 (offset -1 lines).
Hunk #2 succeeded at 582 (offset -1 lines).
Hunk #3 succeeded at 620 (offset -1 lines).
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error: while searching for:

#if IS_IN (libc)
size_t
__malloc_usable_size (void *m)
{
  if (m == NULL)
    return 0;
  return musable (m);
}
#endif

/*

error: patch failed: malloc/malloc.c:4754
error: malloc/malloc.c: patch does not apply
Checking patch malloc/tst-check-internal-calls.sh...
Checking patch sysdeps/aarch64/Makefile...
Hunk #1 succeeded at 104 (offset 2 lines).
Checking patch sysdeps/aarch64/malloc-ifuncs.c...
Checking patch sysdeps/generic/Makefile...
Checking patch sysdeps/generic/malloc-ifuncs.c...
Checking patch sysdeps/generic/malloc-ifuncs.h...