On 2013年04月11日 05:38, Eric Paris wrote:
> ----- Original Message -----
>> >
>> > also for function audit_list_rules:
>> > when call audit_make_reply fails (will return NULL).
>> > we also need process data->buf, not only data itself.
>> >
>> > please help check, thanks.
> struct audit_rule_data {
> [...]
> char buf[0]; /* string fields buffer */
> };
>
> The last element in the struct is 0 length. But the allocation in
> audit_krule_to_data() looks like:
>
> data = kmalloc(sizeof(*data) + krule->buflen, GFP_KERNEL);
>
> So now data->buf appears as an allocation of size krule->buflen.
>
> We do not need to free it separately. This is a pretty common C trick.
ok, thanks
it is my fault.
:-)
--
Chen Gang
Asianux Corporation
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