Received: by 2002:a05:6a10:f347:0:0:0:0 with SMTP id d7csp8998176pxu; Mon, 28 Dec 2020 04:00:00 -0800 (PST) X-Google-Smtp-Source: ABdhPJwHgcX9keqrmpFQm+ITlOLGYYC2//O1kuEAd4y+LA7gM+gUrhEHfYQLjVI0bVTBALPohvQL X-Received: by 2002:a17:907:6e6:: with SMTP id yh6mr42124236ejb.512.1609156800272; Mon, 28 Dec 2020 04:00:00 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1609156800; cv=none; d=google.com; s=arc-20160816; b=bZgtfAT3+TKQ/hiNOrR++xFaK3TUzNio6dz1XUl0/I+/TVM4sW2m1coi/oDUvFv1Om qscDSbDSqqlyS9MK/hF3vslnNlcSVjPBul4ebZaqXs+DbJilomDafAw3FFdMub4LDM2k dt/oVrTNf4ul/wp84+W0tf+cfvQiGPD7x8vUGa5Xnf+rxMhovGxWrBy99xTjn/voOZJl HawY1Qe6iiKGDRBexkE+UdIDrAyXBFRzJcurbGBLpgD9oXEy5BXg6QOUNU7eTBSI2N4O pd5Ey6Xj/oCNKBVHFdJEUAMweaPvdHshmHCK2qaUlxv1u3Nd6dIp44tbJAo1nf9vnrol YOvQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:user-agent:content-disposition:mime-version :message-id:subject:cc:to:from:date; bh=cHclaEVfE79n8CKL/NuPAKmetj9brEhaQX2BMZna1os=; b=NOV24H5ZS0W1K055b50D4vLTvfUJZ56RSKbNsgLzbyclzuNcCeBPt+tepITbB8diIO xJXPZe5O2j39LWK6ZkCj5nxZLi2ge5NyEzthx1OQa2HbEXZpDLjNPyUsGP8JdQZnYmiD r17EvvAt1bhEpJZHh73JrdEjqERx+aoMqOhcI68Kivl0KUcYuzp2aqirtx7+shnp0V8Z 7+sNRHYWo7Dz4wnz00woi/DH26GbLYO79OT5Nsx7EekbNfy0gXWWf9leHXzNfrjq23uo DxqU5PERSlooXGDCkONQgnmpC2C3AYIqtvGkuZe6Ed1FXq3eLy1wkkgunLcKDMcbDB/U j67w== ARC-Authentication-Results: i=1; mx.google.com; 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 h4si10142915edf.490.2020.12.28.03.59.37; Mon, 28 Dec 2020 04:00:00 -0800 (PST) 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; 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 S1727497AbgL1L65 (ORCPT + 99 others); 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