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Wed, 3 Mar 2021 18:00:10 +0000 (GMT) Received: from b03ledav003.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 34B1C6A081; Wed, 3 Mar 2021 18:00:09 +0000 (GMT) Received: from demeter.local (unknown [9.160.55.6]) by b03ledav003.gho.boulder.ibm.com (Postfix) with ESMTPS; Wed, 3 Mar 2021 18:00:08 +0000 (GMT) Subject: Re: overlayFS security concern - threat model To: Kun Zhao , "openbmc@lists.ozlabs.org" , "chunhui.jia" , Andrew Jeffery , Patrick Williams , Michael Richardson References: From: Joseph Reynolds Message-ID: <7a264749-3028-3274-e02d-6fc5790c02cd@linux.ibm.com> Date: Wed, 3 Mar 2021 12:00:07 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.16; rv:78.0) Gecko/20100101 Thunderbird/78.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-TM-AS-GCONF: 00 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.369, 18.0.761 definitions=2021-03-03_05:2021-03-03, 2021-03-03 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 mlxlogscore=999 lowpriorityscore=0 malwarescore=0 phishscore=0 impostorscore=0 spamscore=0 priorityscore=1501 adultscore=0 clxscore=1015 bulkscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2103030124 X-BeenThere: openbmc@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development list for OpenBMC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: openbmc-bounces+openbmc=archiver.kernel.org@lists.ozlabs.org Sender: "openbmc" On 3/3/21 11:55 AM, Kun Zhao wrote: > Thanks, Joseph. Seems we have several options to solve the problem. I wrote an issue to address the /etc readwrite overlayfs issue. https://github.com/openbmc/openbmc/issues/3766 - joseph > > Kun > ...snip...