>
> That's the whole point of the discussion :)
>
> The method "vt_do_kdgkb_ioctl" does not manage "func_table[kb_func]".
> Thus, the method does not know whether or not
> strlen(func_table[kb_func]) < sizeof(user_kdgkb->kb_string).
>
It manages. The code under `case KDSKBSENT:` sets func_table[] entries
via vt_kdskbsent().
kbs = strndup_user(..., sizeof(user_kdgkb->kb_string));
is used to allocate buffer for the func_table[] entry. That's my main
point :)
func_table is set in vt_kdskbent, which itself is external.
More importantly, vt_kdskbent is handled in case KDSKBSENT:, while the
strlcpy issue we are dealing with is in case KDGKBSENT:
In case KDGKBSENT, following are managed :
ssize_t len = sizeof(user_kdgkb->kb_string);
kbs = kmalloc(len, GFP_KERNEL);
while func_table[kb_func] is external entity here, so no assumption
ought to be made for it, just my 2 cents though :)
Anyhow, really, it is the maintainers' choice now :), since there
isn't a burning (compilation/runtime) issue.