# Buggy code
def absent(name, acl_type, acl_name="", perms="", recurse=False):
    """
    Ensure a Linux ACL does not exist
    """
    ret = {"name": name, "result": True, "changes": {}, "comment": ""}

    __current_perms = __salt__["acl.getfacl"](name)

    if acl_type.startswith(("d:", "default:")):
        _acl_type = ":".join(acl_type.split(":")[1:])
        _current_perms = __current_perms[name].get("defaults", {})
        _default = True
    else:
        _acl_type = acl_type
        _current_perms = __current_perms[name]
        _default = False

    # The getfacl execution module lists default with empty names as being
    # applied to the user/group that owns the file, e.g.,
    # default:group::rwx would be listed as default:group:root:rwx
    # In this case, if acl_name is empty, we really want to search for root

    # We search through the dictionary getfacl returns for the owner of the
    # file if acl_name is empty.
    if acl_name == "":
        _search_name = __current_perms[name].get("comment").get(_acl_type)
    else:
        _search_name = acl_name

    if _current_perms.get(_acl_type, None) or _default:
        try:
            user = [
                i
                for i in _current_perms[_acl_type]
                if next(six.iterkeys(i)) == _search_name
            ].pop()
        except (AttributeError, IndexError, StopIteration, KeyError):
            user = None

        if user:
            ret["comment"] = "Removing permissions"

            if __opts__["test"]:
                ret["result"] = None
                return ret

            if recurse:
                __salt__["acl.delfacl"](acl_type, acl_name, perms, name, recursive=True)
            else:
                __salt__["acl.delfacl"](acl_type, acl_name, perms, name)
        else:
            ret["comment"] = "Permissions are in the desired state"

    else:
        ret["comment"] = "ACL Type does not exist"
        ret["result"] = False

    return ret


# Traceback (KeyError)
mandorallen:
----------
ID: /var/log/unattended-upgrades is readable by the NRPE user
Function: acl.present
Name: /var/log/unatteded-upgrades
Result: False
Comment: An exception occurred in this state: Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/salt/state.py", line 1733, in call
**cdata['kwargs'])
File "/usr/lib/python2.7/dist-packages/salt/loader.py", line 1651, in wrapper
return f(*args, **kwargs)
File "/usr/lib/python2.7/dist-packages/salt/states/linux_acl.py", line 69, in present
_current_perms = __current_perms[name]
KeyError: '/var/log/unatteded-upgrades'
Started: 10:25:28.737175
Duration: 8.555 ms
Changes:

# Fixed code
def absent(name, acl_type, acl_name="", perms="", recurse=False):
    """
    Ensure a Linux ACL does not exist
    """
    ret = {"name": name, "result": True, "changes": {}, "comment": ""}

    if not os.path.exists(name):
        ret["comment"] = "{0} does not exist".format(name)
        ret["result"] = False
        return ret

    __current_perms = __salt__["acl.getfacl"](name)

    if acl_type.startswith(("d:", "default:")):
        _acl_type = ":".join(acl_type.split(":")[1:])
        _current_perms = __current_perms[name].get("defaults", {})
        _default = True
    else:
        _acl_type = acl_type
        _current_perms = __current_perms[name]
        _default = False

    # The getfacl execution module lists default with empty names as being
    # applied to the user/group that owns the file, e.g.,
    # default:group::rwx would be listed as default:group:root:rwx
    # In this case, if acl_name is empty, we really want to search for root

    # We search through the dictionary getfacl returns for the owner of the
    # file if acl_name is empty.
    if acl_name == "":
        _search_name = __current_perms[name].get("comment").get(_acl_type)
    else:
        _search_name = acl_name

    if _current_perms.get(_acl_type, None) or _default:
        try:
            user = [
                i
                for i in _current_perms[_acl_type]
                if next(six.iterkeys(i)) == _search_name
            ].pop()
        except (AttributeError, IndexError, StopIteration, KeyError):
            user = None

        if user:
            ret["comment"] = "Removing permissions"

            if __opts__["test"]:
                ret["result"] = None
                return ret

            __salt__["acl.delfacl"](acl_type, acl_name, perms, name, recursive=recurse)
        else:
            ret["comment"] = "Permissions are in the desired state"

    else:
        ret["comment"] = "ACL Type does not exist"
        ret["result"] = False

    return ret