linux-kernel - Re: [PATCH 3/3] Bluetooth: hci_qca: fix a NULL-pointer derefence at shutdown

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Message-ID: <CABBYNZ+1XpSDvt41zEYYQ4AraCucOM7FDSVhhkGNsCgr9-hc6g@mail.gmail.com>
Date: Wed, 7 Aug 2024 11:03:09 -0400
From: Luiz Augusto von Dentz <luiz.dentz@...il.com>
To: Bartosz Golaszewski <brgl@...ev.pl>
Cc: Nícolas F. R. A. Prado <nfraprado@...labora.com>, 
	Luiz Augusto von Dentz <luiz.von.dentz@...el.com>, Marcel Holtmann <marcel@...tmann.org>, 
	Wren Turkal <wt@...guintechs.org>, Dmitry Baryshkov <dmitry.baryshkov@...aro.org>, 
	linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH 3/3] Bluetooth: hci_qca: fix a NULL-pointer derefence at shutdown

Hi Bartosz, Nicolas,

On Wed, Aug 7, 2024 at 3:53 AM Bartosz Golaszewski <brgl@...ev.pl> wrote:
>
> On Wed, Aug 7, 2024 at 12:44 AM Nícolas F. R. A. Prado
> <nfraprado@...labora.com> wrote:
> >
> > On Wed, Jul 31, 2024 at 05:20:50PM +0200, Bartosz Golaszewski wrote:
> > > From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> > >
> > > Unlike qca_regulator_init(), qca_power_shutdown() may be called for
> > > QCA_ROME which does not have qcadev->bt_power assigned. Add a
> > > NULL-pointer check before dereferencing the struct qca_power pointer.
> > >
> > > Fixes: eba1718717b0 ("Bluetooth: hci_qca: make pwrseq calls the default if available")
> > > Reported-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> > > Closes: https://lore.kernel.org/linux-bluetooth/su3wp6s44hrxf4ijvsdfzbvv4unu4ycb7kkvwbx6ltdafkldir@4g7ydqm2ap5j/
> > > Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> >
> > Hi,
> >
> > I just noticed we're still hitting this issue in mainline (saw it on the
> > mt8183-juniper platform in KernelCI). I see this commit was merged 6 days ago to
> > bluetooth-next, but it seems there wasn't a pull request with this fix yet to
> > include it in 6.11. I'm wondering if it's still going to be sent.
> >
> > Thanks,
> > Nícolas
>
> The patches are in next so I don't see why they wouldn't be sent upstream.
>
> Moving Luiz and Marcel to To: to make sure they see this message.

I was on a business trip last week, will prepare the pull request later today.

-- 
Luiz Augusto von Dentz