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=-3.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 24043C433E7 for ; Fri, 9 Oct 2020 19:20:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DAE0B222BA for ; Fri, 9 Oct 2020 19:20:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=walle.cc header.i=@walle.cc header.b="QeAMkGL6" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388601AbgJITUb (ORCPT ); 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