linux-kernel - Re: [REGRESSION] Patch broke WPA auth: Re: [PATCH v2] wifi: cfg80211: Fix use after free for wext

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Date:   Sat, 11 Mar 2023 13:30:05 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Hans de Goede <hdegoede@...hat.com>
Cc:     Hector Martin <marcan@...can.st>,
        Alexander Wetzel <alexander@...zel-home.de>,
        linux-wireless@...r.kernel.org,
        Johannes Berg <johannes.berg@...el.com>,
        johannes@...solutions.net, stable@...r.kernel.org,
        Asahi Linux <asahi@...ts.linux.dev>, Ilya <me@...ti.me>,
        Janne Grunau <j@...nau.net>,
        LKML <linux-kernel@...r.kernel.org>, regressions@...ts.linux.dev
Subject: Re: [REGRESSION] Patch broke WPA auth: Re: [PATCH v2] wifi:
 cfg80211: Fix use after free for wext

On Sat, Mar 11, 2023 at 12:03:44PM +0100, Hans de Goede wrote:
> Hi Hector,
> 
> On 3/11/23 10:55, Hector Martin wrote:
> > Hi,
> > 
> > This broke WPA auth entirely on brcmfmac (in offload mode) and probably
> > others, including on stable 6.2.3 and 6.3-rc1 (tested with iwd). Please
> > revert or fix. Notes below.
> > 
> > Reported-by: Ilya <me@...ti.me>
> > Reported-by: Janne Grunau <j@...nau.net>
> > 
> > #regzbot introduced: 015b8cc5e7c4d7
> > #regzbot monitor:
> > https://lore.kernel.org/linux-wireless/20230124141856.356646-1-alexander@wetzel-home.de/
> 
> I can confirm this bug, I was seeing broken wifi on brcmfmac with 6.3-rc1
> and I was about to start a git bisect for this this morning when I saw
> this email.
> 
> Reverting 015b8cc5e7c4d7 fixes the broken wifi. Hector, thank you, you
> just saved me from a bisect on somewhat slow hardware :)

Great, can someone submit the revert patch to the networking tree so we
can get this resolved quickly?

thanks,

greg k-h