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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 72E74C43381 for ; Mon, 28 Dec 2020 11:59:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 490C622573 for ; Mon, 28 Dec 2020 11:59:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727514AbgL1L65 (ORCPT ); Mon, 28 Dec 2020 06:58:57 -0500 Received: from mx2.suse.de ([195.135.220.15]:33042 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727472AbgL1L64 (ORCPT ); Mon, 28 Dec 2020 06:58:56 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id DD8C9AF61; Mon, 28 Dec 2020 11:58:14 +0000 (UTC) Received: by lion.mk-sys.cz (Postfix, from userid 1000) id 965D1603A8; Mon, 28 Dec 2020 12:58:14 +0100 (CET) Date: Mon, 28 Dec 2020 12:58:14 +0100 From: Michal Kubecek To: linux-wireless@vger.kernel.org, Mordechay Goodstein Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Takashi Iwai , Arjen de Korte Subject: regression in iwlwifi: page fault in iwl_dbg_tlv_alloc_region() (commit ba8f6f4ae254) Message-ID: <20201228115814.GA5880@lion.mk-sys.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org FYI, there is a regression in iwlwifi driver caused by commit ba8f6f4ae254 ("iwlwifi: dbg: add dumping special device memory") reported at https://bugzilla.kernel.org/show_bug.cgi?id=210733 https://bugzilla.suse.com/show_bug.cgi?id=1180344 The problem seems to be an attempt to write terminating null character into a string which may be read only. There is also a proposed fix. Michal