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From: Jani Nikula <jani.nikula@linux.intel.com>
To: Randy Dunlap <rdunlap@infradead.org>,
	LKML <linux-kernel@vger.kernel.org>,
	intel-gfx <intel-gfx@lists.freedesktop.org>
Cc: "Neil Armstrong" <narmstrong@baylibre.com>,
	"Hans Verkuil" <hans.verkuil@cisco.com>,
	"Ville Syrjälä" <ville.syrjala@linux.intel.com>
Subject: Re: [Intel-gfx] BUG: KASAN: use-after-free in intel_hdmi_destroy+0x79/0x80
Date: Mon, 25 Feb 2019 15:41:55 +0200	[thread overview]
Message-ID: <87y364q924.fsf@intel.com> (raw)
In-Reply-To: <dc22722f-a55c-6160-6485-a02f3bb91836@infradead.org>

On Fri, 22 Feb 2019, Randy Dunlap <rdunlap@infradead.org> wrote:
> This is 5.0-rc7 on an old Toshiba Portege laptop.
> No hdmi or other external video.
>
> Linux dragon.dunlab 5.0.0-rc7mod #3 SMP PREEMPT Wed Feb 20 00:05:17 PST 2019 x86_64 x86_64 x86_64 GNU/Linux
>
> on openSUSE LEAP 15.0 distro.
>
> Full boot log is attached.

On a hunch, caused by 9c229127aee2 ("drm/i915: hdmi: add CEC notifier to
intel_hdmi") referencing the encoder in connector destroy hook. We
should probably move the cec_notifier_put() call in the encoder destroy
hook.

BR,
Jani.




-- 
Jani Nikula, Intel Open Source Graphics Center

  reply	other threads:[~2019-02-25 13:39 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-23  1:11 BUG: KASAN: use-after-free in intel_hdmi_destroy+0x79/0x80 Randy Dunlap
2019-02-25 13:41 ` Jani Nikula [this message]
2019-02-25 14:43   ` [Intel-gfx] " Hans Verkuil
2019-02-25 14:58     ` Jani Nikula

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