From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jonathan Nieder Subject: Re: iwlwifi WPA-TKIP crypto failure after group rekeying Date: Sun, 4 Mar 2012 22:53:35 -0600 Message-ID: <20120305045334.GF30344@burratino> References: <1330320802.8460.105.camel@deadeye> <1330333354.3483.6.camel@jlt3.sipsolutions.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Johannes Berg , 651199-61a8vm9lEZVf4u+23C9RwQ@public.gmane.org, Ben Hutchings , Wey-Yi Guy , Intel Linux Wireless , linux-wireless , netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Andreas Gustafsson , Marco d'Itri , Gabriel Kerneis , Shawn Thompson , Linus Torvalds To: "John W. Linville" Return-path: Content-Disposition: inline In-Reply-To: <1330333354.3483.6.camel-8upI4CBIZJIJvtFkdXX2HixXY32XiHfO@public.gmane.org> Sender: linux-wireless-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: netdev.vger.kernel.org Hi, Johannes Berg wrote: > On Mon, 2012-02-27 at 05:33 +0000, Ben Hutchings wrote: >> To summarise, a WPA-TKIP managed connection stops passing traffic and >> the kernel log shows the message "WPA: Group rekeying". This apparently >> doesn't happen if the connection is in heavy use at the time or with >> module parameter swcrypto=1. WPA2 is not affected either. > > I think this is due to my patch "iwlagn: rewrite HW crypto" which > accidentally broke key *removal* (of all things), which causes issues > when the first GTK is removed on the second rekeying. > > This patch > [...]h=5dcbf480473f6c3f06ad2426b7517038a2a18911 > > should fix it. Wey has sent it to John [...] > it's also marked for stable. Shawn Thompson (cc-ed) tested the patch against 3.2.9 and 3.3-rc6 and found it to work[1]. What can interested people do to help usher this into mainline? (To recap, this was a regression introduced between 3.0 and 3.1, presumably by v3.1-rc1~24^2~10^2^2~37.) Thanks, Jonathan [1] http://bugs.debian.org/651199#147 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html