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=-12.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 B6F75C64E7A for ; Tue, 1 Dec 2020 14:00:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 53FA52086A for ; Tue, 1 Dec 2020 14:00:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="xl7VRIN7" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2403875AbgLAN7y (ORCPT ); Tue, 1 Dec 2020 08:59:54 -0500 Received: from mail.kernel.org ([198.145.29.99]:45910 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2403857AbgLAN7x (ORCPT ); Tue, 1 Dec 2020 08:59:53 -0500 Received: from localhost (cpc102334-sgyl38-2-0-cust884.18-2.cable.virginm.net [92.233.91.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C9FCE2173E; Tue, 1 Dec 2020 13:59:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1606831146; bh=4O6jrK+W5Po12wYUSSzX2/tS7T66ir4w2NAyU6znoiE=; h=From:To:Cc:In-Reply-To:References:Subject:Date:From; b=xl7VRIN7WM5n4XRPkuy1iwnfPDlafzN2hOzveA5KjI8haiFtEY7TWGPExvhgPqPuJ XrElc21LjjUTlsUiUx75NAQMZX74g/4NjEcv/uwMzN4WPVd39uVltCgCcVVurP/RdH tDSgUgnxeUJIFJ2o+D0TTRBZDLNiTMJcwD6YBihg= From: Mark Brown To: linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org, Michael Walle Cc: Vladimir Oltean , Krzysztof Kozlowski , Sascha Hauer In-Reply-To: <20200928085500.28254-1-michael@walle.cc> References: <20200928085500.28254-1-michael@walle.cc> Subject: Re: [PATCH v3] spi: fsl-dspi: fix NULL pointer dereference Message-Id: <160683107674.35139.13937083243515034859.b4-ty@kernel.org> Date: Tue, 01 Dec 2020 13:57:56 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 28 Sep 2020 10:55:00 +0200, Michael Walle wrote: > Since commit 530b5affc675 ("spi: fsl-dspi: fix use-after-free in remove > path") this driver causes a kernel oops: > > [ 1.891065] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000080 > [..] > [ 2.056973] Call trace: > [ 2.059425] dspi_setup+0xc8/0x2e0 > [ 2.062837] spi_setup+0xcc/0x248 > [ 2.066160] spi_add_device+0xb4/0x198 > [ 2.069918] of_register_spi_device+0x250/0x370 > [ 2.074462] spi_register_controller+0x4f4/0x770 > [ 2.079094] dspi_probe+0x5bc/0x7b0 > [ 2.082594] platform_drv_probe+0x5c/0xb0 > [ 2.086615] really_probe+0xec/0x3c0 > [ 2.090200] driver_probe_device+0x60/0xc0 > [ 2.094308] device_driver_attach+0x7c/0x88 > [ 2.098503] __driver_attach+0x60/0xe8 > [ 2.102263] bus_for_each_dev+0x7c/0xd0 > [ 2.106109] driver_attach+0x2c/0x38 > [ 2.109692] bus_add_driver+0x194/0x1f8 > [ 2.113538] driver_register+0x6c/0x128 > [ 2.117385] __platform_driver_register+0x50/0x60 > [ 2.122105] fsl_dspi_driver_init+0x24/0x30 > [ 2.126302] do_one_initcall+0x54/0x2d0 > [ 2.130149] kernel_init_freeable+0x1ec/0x258 > [ 2.134520] kernel_init+0x1c/0x120 > [ 2.138018] ret_from_fork+0x10/0x34 > [ 2.141606] Code: 97e0b11d aa0003f3 b4000680 f94006e0 (f9404000) > [ 2.147723] ---[ end trace 26cf63e6cbba33a8 ]--- > > [...] Applied to https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next Thanks! [1/1] spi: fsl-dspi: fix NULL pointer dereference (no commit info) All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. Thanks, Mark