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

From: Nícolas F. R. A. Prado
Date: Tue Aug 06 2024 - 18:44:43 EST


On Wed, Jul 31, 2024 at 05:20:50PM +0200, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
>
> 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@xxxxxxxxxx>
> Closes: https://lore.kernel.org/linux-bluetooth/su3wp6s44hrxf4ijvsdfzbvv4unu4ycb7kkvwbx6ltdafkldir@4g7ydqm2ap5j/
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>

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