netdev - Re: [PATCH 1/2] wireless: ath9k_htc: fix NULL-deref at probe

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Message-ID: <20170403132602.GB3119@localhost>
Date:   Mon, 3 Apr 2017 15:26:02 +0200
From:   Johan Hovold <johan@...nel.org>
To:     Kalle Valo <kvalo@....qualcomm.com>
Cc:     Johan Hovold <johan@...nel.org>,
        ath9k-devel <ath9k-devel@....qualcomm.com>,
        Daniel Drake <dsd@...too.org>,
        Ulrich Kunitz <kune@...ne-taler.de>,
        "linux-wireless@...r.kernel.org" <linux-wireless@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] wireless: ath9k_htc: fix NULL-deref at probe

On Mon, Apr 03, 2017 at 01:21:08PM +0000, Kalle Valo wrote:
> Johan Hovold <johan@...nel.org> writes:
> 
> > On Mon, Apr 03, 2017 at 01:02:28PM +0000, Kalle Valo wrote:
> >> Kalle Valo <kvalo@...eaurora.org> writes:
> >> 
> >> > Johan Hovold <johan@...nel.org> writes:
> >> >
> >> >> On Mon, Mar 13, 2017 at 01:44:20PM +0100, Johan Hovold wrote:
> >> >>> Make sure to check the number of endpoints to avoid dereferencing a
> >> >>> NULL-pointer or accessing memory beyond the endpoint array should a
> >> >>> malicious device lack the expected endpoints.
> >> >>> 
> >> >>> Fixes: 36bcce430657 ("ath9k_htc: Handle storage devices")
> >> >>> Cc: Sujith Manoharan <Sujith.Manoharan@...eros.com>
> >> >>> Signed-off-by: Johan Hovold <johan@...nel.org>
> >> >>
> >> >> Is this one still in your queue, Kalle?
> >> >
> >> > Yes, I'm just lacking behing:
> >> >
> >> > https://patchwork.kernel.org/patch/9620723/
> >> 
> >> Meant "lagging" of course. Mondays..
> >> 
> >> >> As I mentioned earlier, I should have added a
> >> >>
> >> >> Cc: stable <stable@...r.kernel.org>     # 2.6.39
> >> >>
> >> >> but left it out as I mistakingly thought the net recommendations to do
> >> >> so applied also to wireless.
> >> >
> >> > Ok, I'll add that.
> >> 
> >> But is 2.6.39 really correct? Shouldn't it be 2.6.39+ so that it means
> >> all versions since 2.6.39?
> >
> > Either way is fine, the stable maintainers apply them to all later
> > versions.
> >
> > I notice now that adding a plus sign is more common, but it's still a
> > 1:2 ratio judging from quick grep, while the stable-kernel-rules.rst
> > actually uses a minus sign...
> 
> Heh, quite confusing :) I added the plus sign already to the patch in my
> pending branch so unless you object I'll keep it.

Please do, no objection. :)

Thanks,
Johan