linux-kernel - Re: [PATCH V2] mac80211: Ignore VHT IE from peer with wrong rx_mcs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Tue, 15 Nov 2016 14:20:12 +0100
From:   Johannes Berg <johannes@...solutions.net>
To:     Filip Matusiak <filip.matusiak@...to.com>,
        linux-wireless@...r.kernel.org
Cc:     marek.kwaczynski@...to.com, davem@...emloft.net,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2] mac80211: Ignore VHT IE from peer with wrong
 rx_mcs_map

On Wed, 2016-11-02 at 10:04 +0100, Filip Matusiak wrote:
> This is a workaround for VHT-enabled STAs which break the spec
> and have the VHT-MCS Rx map filled in with value 3 for all eight
> spacial streams, an example is AR9462 in AP mode.
> 
> As per spec, in section 22.1.1 Introduction to the VHT PHY
> A VHT STA shall support at least single spactial stream VHT-MCSs
> 0 to 7 (transmit and receive) in all supported channel widths.
> 
> Some devices in STA mode will get firmware assert when trying to
> associate, examples are QCA9377 & QCA6174.
> 
> Packet example of broken VHT Cap IE of AR9462:
> 
> [...]

Applied, thanks.

johannes