ad-hoc wireless connections security

[Caterpillar]

I am writing this e-mail because I got so confused about this problem.
I remember in past I used ad-hoc wireless connections with WPA security
(not 100% sure, but I have vague memories)
At a certain point, Fedora KDE started having problems with the security of
ad-hoc connections: if you create a new ad-hoc connection, when you select
WPA security everything seems okay, the KDE network manager shows you that
your "new ad-hoc connection" is secure (you see the green shield). But if
you check with another device, the ad-hoc connection is not secure at all.
I created a bugreport, I don't remember if I opened it in Fedora bugzilla
or KDE bugzilla, but I have been told that it is a Gnome networkmanager
fault, so I had to open a bugreport in Gnome bugzilla.

Today, various months later that bugreport, I was ordering my ideas to make
a Gnome bugreport. To do that, I looked for my past bugreport, without
success, but I found a strange bugreport submitted by Vladimir Benes
https://bugzilla.redhat.com/show_bug.cgi?id=787733 He says this it is a
kernel problem, because it cannot create ad-hoc connection secured with WPA
encryption.

To this point I do not know any more what to think.
What do kernel developers say about? Having the possibility of creating
ad-hoc wireless connection is quiet important in some situations.
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