Received: by 2002:a05:6a10:6744:0:0:0:0 with SMTP id w4csp2297949pxu; Fri, 9 Oct 2020 13:00:55 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxQxOR6/wYU3MOQ+V2kiJutgkQiCiJ891O7eF/K+YrjswFmlKVbV9kiz/T8xpG6t5SkXV1R X-Received: by 2002:a17:907:1005:: with SMTP id ox5mr15753826ejb.443.1602273654872; Fri, 09 Oct 2020 13:00:54 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1602273654; cv=none; d=google.com; s=arc-20160816; b=zVjVtdjW0bbhwCxbIaxPuDbrpQmf0/fDw12DvJH62Kdrmu2nfbKcIJQHJRpRAq4rjb gfp1tKE4tD0uOl2+ti5po+IACd1f81Zi3ve+/hBz32uLJO/kHyabTWO/KW0cNBvlhKeY dfLGRdb6H42VhiJNlnJg/iwoWLhrj4BBlvnB/kRNfzPGnw1Oot5UYvWE8B90emyOip6B cauFY6P6R11C89A8BHauNWSwavbr1S37kWaJxtnaMm0w2XnMSQAyDeZxWt0lAPvOxwwM SEmln5jkqWk7si/sQvyIYlqVB3h9eXxlPb7yvN61l4ABWZybqYAWCLV5puIimlzAgFax JzCg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:message-id:user-agent:references:in-reply-to :subject:cc:to:from:date:content-transfer-encoding:mime-version :dkim-signature; bh=4BzP0pQ1Db7rSbyWi/g0zS5ugUBf9jywudEZzZsDAo8=; b=0iEyTytrWQ5fkiwTP70vtiPMMkZmHGDlVajtgQ4xlZkqvOo6/rY+6WtanGAaOIL3pg CrFqx0YBtCA8iRBMSJ8PIaNqrqYj1Yw6nD84z0v7Ahx6Z++4aSNil0vXL+c4cbjz46WD i2hKwo4IocwLnoiHdDOLEy7BxSSyOWtOhBNIkymaNLZ9ahgUxe9/F1gcQRn1BbrYYOl/ 0SAJYxOuMhpt5UBM6nTMFSWW3dH84DZ4k2dTFNGTWohJPGXYfyaVCJbJ8VrUAqQtaCGr R4IJIszeO9WgfBIQIQxEwBfBg3EFmXS1TaEkhVDu8+HD1DMwOeg5WT5qOkjaMxBMArow b4sQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@walle.cc header.s=mail2016061301 header.b=QeAMkGL6; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id cy8si6493195edb.527.2020.10.09.13.00.31; Fri, 09 Oct 2020 13:00:54 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@walle.cc header.s=mail2016061301 header.b=QeAMkGL6; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388585AbgJITUb (ORCPT + 99 others); Fri, 9 Oct 2020 15:20:31 -0400 Received: from ssl.serverraum.org ([176.9.125.105]:33373 "EHLO ssl.serverraum.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388558AbgJITUb (ORCPT ); Fri, 9 Oct 2020 15:20:31 -0400 Received: from ssl.serverraum.org (web.serverraum.org [172.16.0.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ssl.serverraum.org (Postfix) with ESMTPSA id C9A9323E53; Fri, 9 Oct 2020 21:20:27 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=walle.cc; s=mail2016061301; t=1602271228; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=4BzP0pQ1Db7rSbyWi/g0zS5ugUBf9jywudEZzZsDAo8=; b=QeAMkGL61BLBvwdOfo+E/KVs5EKhkV+4iSy/1gZeYFmNwkMhC2zcdG2qUkYucwZyeiTY2G QNXF4PVJ5l+L610D8n69ZLMUbaiQJLIlwLQEFE6HmldpFSp9SsGoMZqvw+a1Fq8wpOo1tJ cbNOmz7Hzqpea59AKdSr8Mdo7ehKYHg= MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Fri, 09 Oct 2020 21:20:26 +0200 From: Michael Walle To: Naresh Kamboju Cc: linux-spi@vger.kernel.org, open list , Sascha Hauer , Mark Brown , Vladimir Oltean , Krzysztof Kozlowski , Linus Torvalds , lkft-triage@lists.linaro.org Subject: Re: [PATCH v3] spi: fsl-dspi: fix NULL pointer dereference In-Reply-To: References: <20200928085500.28254-1-michael@walle.cc> User-Agent: Roundcube Webmail/1.4.9 Message-ID: X-Sender: michael@walle.cc Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am 2020-10-09 13:01, schrieb Naresh Kamboju: > On Mon, 28 Sep 2020 at 14:26, Michael Walle wrote: >> >> Since commit 530b5affc675 ("spi: fsl-dspi: fix use-after-free in >> remove >> path") this driver causes a kernel oops: > > FYI, > This reported issue is now happening on Linus's master 5.9.0-rc8 on > arm64 > nxp-ls2088 devices. Yep, Kontron sl28 is also broken on the latest 5.9-rc8. Somehow commit 530b5affc675 ("spi: fsl-dspi: fix use-after-free in remove path") made it into 5.9-rc7 but this fix didn't. -michael