netdev - Re: [PATCH RFC V2] nl80211: Fix init of cfg80211 channel definition

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Message-ID: <560d7cb0-b509-6f2a-f31a-1743131e14df@gmx.net>
Date:   Sun, 29 Sep 2019 16:20:12 +0200
From:   Stefan Wahren <wahrenst@....net>
To:     Johannes Berg <johannes@...solutions.net>
Cc:     Alexei Avshalom Lazar <ailizaro@...eaurora.org>,
        "David S. Miller" <davem@...emloft.net>,
        Dmitry Osipenko <digetx@...il.com>,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC V2] nl80211: Fix init of cfg80211 channel definition

Hi Johannes,

Am 29.09.19 um 16:12 schrieb Stefan Wahren:
> The commit 2a38075cd0be ("nl80211: Add support for EDMG channels")
> introduced a member to the cfg80211 channel definition. Unfortunately
> the channel definitions are allocated on the stack and are not always
> initialized via memset. Now this results in a broken probe of brcmfmac
> driver, because cfg80211_chandef_valid() accesses uninitialized memory
> and fail. Fix this by init the remaining occurences with memset.
>
> Reported-by: Dmitry Osipenko <digetx@...il.com>
> Signed-off-by: Stefan Wahren <wahrenst@....net>
> Fixes: 2a38075cd0be ("nl80211: Add support for EDMG channels")
i oversight your patch. Sorry for the noise.