Received: by 2002:a05:6358:7058:b0:131:369:b2a3 with SMTP id 24csp6053404rwp; Mon, 17 Jul 2023 14:07:05 -0700 (PDT) X-Google-Smtp-Source: APBJJlEmiEYClDOJUaR6G9XLQf9EdiA+Srz5R6XlM0l5edDc/rKkdriVr6ZqkDBaEVhxF2D1JPL5 X-Received: by 2002:a05:6a00:1886:b0:677:bdc:cd6b with SMTP id x6-20020a056a00188600b006770bdccd6bmr17634096pfh.19.1689628025213; Mon, 17 Jul 2023 14:07:05 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1689628025; cv=none; d=google.com; s=arc-20160816; b=YRak2629FPim7x3w0hSilWIIVehm0HdAkC8ZXyScJRjowj6V31F+WGq1vQWjp/vxWq A0/p4xAoblaEsJWIgFdwT/mOXgB+qsmpb9H8kMEhh+RHfNCNBo+bt42+t6X5ZQNoYU3N PRNnbyOsguVHznPRw/hZD5FV0RFtdXh/yAa7cgnsqeBiw2YoCHxI2hBZXPdpXIKXEBE9 rjHsCtrFcm8tGCJ+8VVoRmoothY7FJX5igbBuAY/eEBYTvydbLBrd9uwJN+dAylmYPlA YqecAUeGrONMjZfC8LVhRj8i2A3mWspPm5JUk8Hva1hazkLaZZfvXi42VsZ0OvU/a6kT oxAg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:thread-index:thread-topic :content-transfer-encoding:mime-version:subject:references :in-reply-to:message-id:cc:to:from:date; bh=uWZbT6ZF4iqM7PyMELQQgt2BSbfUn/xIedLHtvUecqU=; fh=5/Fl1n2QZOSNOaKofH7xjE1yymfVIG8/Kz0ugT55xbk=; b=BWbTp7dONGkkk7p5EBa1ugfpDrWMA8MdTNetx3uHD+ukQ3RFrsmwDKR/HU9LlSTzFU 1GzYhwwcLz5TOwfh/8RELz463vbKRLabTDuuvODE5FhvTilIGXcg3s8kHHhVwFlDybsb rK/5/Y7Uxae4xyncKnm0apEPQvqYIMS+lzkpXnt07qg0OVUukMCbsyCHQ9NTTw0pS8bl ZeQ0E14PqshG52rFnMw096Z7M6UWYihCAQ5lHipl+lHPlfe5Dq/MJ3lm8fIqQ7OUc2Ha ewGmN6t9qbYMIuzXwUBctQ0mbMMzDDXonx8YSqEYuSyFlr4O3vlTVowsGJEv3FcXdMwT e+ag== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id p2-20020a63fe02000000b0055ace8caef9si418039pgh.309.2023.07.17.14.06.52; Mon, 17 Jul 2023 14:07:05 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231338AbjGQUy3 convert rfc822-to-8bit (ORCPT + 99 others); Mon, 17 Jul 2023 16:54:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44462 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231305AbjGQUyW (ORCPT ); Mon, 17 Jul 2023 16:54:22 -0400 Received: from lithops.sigma-star.at (lithops.sigma-star.at [195.201.40.130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5F20D9D for ; Mon, 17 Jul 2023 13:54:20 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by lithops.sigma-star.at (Postfix) with ESMTP id 15BB26342026; Mon, 17 Jul 2023 22:54:19 +0200 (CEST) Received: from lithops.sigma-star.at ([127.0.0.1]) by localhost (lithops.sigma-star.at [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id oo5kc-E4XfjD; Mon, 17 Jul 2023 22:54:18 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by lithops.sigma-star.at (Postfix) with ESMTP id AB00D613AFCD; Mon, 17 Jul 2023 22:54:18 +0200 (CEST) Received: from lithops.sigma-star.at ([127.0.0.1]) by localhost (lithops.sigma-star.at [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id a2qxEfyqq3k2; Mon, 17 Jul 2023 22:54:18 +0200 (CEST) Received: from lithops.sigma-star.at (lithops.sigma-star.at [195.201.40.130]) by lithops.sigma-star.at (Postfix) with ESMTP id 8B6EA6342026; Mon, 17 Jul 2023 22:54:18 +0200 (CEST) Date: Mon, 17 Jul 2023 22:54:18 +0200 (CEST) From: Richard Weinberger To: Stephan Wurm Cc: Miquel Raynal , Vignesh Raghavendra , linux-mtd , linux-kernel , Johannes Eigner Message-ID: <961736756.5775.1689627258484.JavaMail.zimbra@nod.at> In-Reply-To: References: <736980270.3262.1689586950735.JavaMail.zimbra@nod.at> <260741266.3681.1689591789332.JavaMail.zimbra@nod.at> Subject: Re: ubiblock: null pointer dereference using scatterlist in work_queue MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT X-Originating-IP: [195.201.40.130] X-Mailer: Zimbra 8.8.12_GA_3807 (ZimbraWebClient - FF97 (Linux)/8.8.12_GA_3809) Thread-Topic: ubiblock: null pointer dereference using scatterlist in work_queue Thread-Index: 3MOm7rPMjutbsmQ5JwaPKkQjaUaJKw== X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE, T_SPF_PERMERROR autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ----- Ursprüngliche Mail ----- > Von: "Stephan Wurm" > [ 50.502309] 55nth call of ubi_ea_read_leb_sg > [ 64.939917] sgl[00000000] => 00000000: page_link=4025764322, offset=0, > length=512 Hmm, blk_rq_map_sg() returns non-zero, sg_nents() is also non-zero but the very first sg list entry is not virtually mapped. Thanks, //richard