void set_mm_exe_file(struct mm_struct *mm, struct file *new_exe_file)
{
	if (new_exe_file)
		get_file(new_exe_file);
	if (mm->exe_file)
		fput(mm->exe_file);
	mm->exe_file = new_exe_file;
	mm->num_exe_file_vmas = 0;
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.