From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E4994C43381 for ; Mon, 25 Feb 2019 13:39:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B5BA92146F for ; Mon, 25 Feb 2019 13:39:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727355AbfBYNjz (ORCPT ); Mon, 25 Feb 2019 08:39:55 -0500 Received: from mga06.intel.com ([134.134.136.31]:56797 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725857AbfBYNjy (ORCPT ); Mon, 25 Feb 2019 08:39:54 -0500 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 25 Feb 2019 05:39:54 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,411,1544515200"; d="scan'208";a="149773251" Received: from jnikula-mobl3.fi.intel.com (HELO localhost) ([10.237.66.172]) by fmsmga001.fm.intel.com with ESMTP; 25 Feb 2019 05:39:51 -0800 From: Jani Nikula To: Randy Dunlap , LKML , intel-gfx Cc: Neil Armstrong , Hans Verkuil , Ville =?utf-8?B?U3lyasOkbMOk?= Subject: Re: [Intel-gfx] BUG: KASAN: use-after-free in intel_hdmi_destroy+0x79/0x80 In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo References: Date: Mon, 25 Feb 2019 15:41:55 +0200 Message-ID: <87y364q924.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 22 Feb 2019, Randy Dunlap 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