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Fri, 13 Oct 2023 13:50:07 +0000 (GMT) Message-ID: <8d7eff721935ed4c57952e31d3f77bbacafc2522.camel@linux.ibm.com> Subject: Re: [PATCH v3 15/25] security: Introduce file_pre_free_security hook From: Mimi Zohar To: Roberto Sassu , viro@zeniv.linux.org.uk, brauner@kernel.org, chuck.lever@oracle.com, jlayton@kernel.org, neilb@suse.de, kolga@netapp.com, Dai.Ngo@oracle.com, tom@talpey.com, dmitry.kasatkin@gmail.com, paul@paul-moore.com, jmorris@namei.org, serge@hallyn.com, dhowells@redhat.com, jarkko@kernel.org, stephen.smalley.work@gmail.com, eparis@parisplace.org, casey@schaufler-ca.com Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, keyrings@vger.kernel.org, selinux@vger.kernel.org, Roberto Sassu Date: Fri, 13 Oct 2023 09:50:07 -0400 In-Reply-To: <20230904133415.1799503-16-roberto.sassu@huaweicloud.com> References: <20230904133415.1799503-1-roberto.sassu@huaweicloud.com> <20230904133415.1799503-16-roberto.sassu@huaweicloud.com> Content-Type: text/plain; charset="ISO-8859-15" X-Mailer: Evolution 3.28.5 (3.28.5-22.el8) Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 0RV_bRCWRmbiHWMrVDY0KIWQB3h3czDV X-Proofpoint-GUID: lrPJU19t3V1CPwhdIOWNv7x5Kxh2gsz4 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.980,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-10-13_05,2023-10-12_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 spamscore=0 impostorscore=0 clxscore=1015 adultscore=0 suspectscore=0 mlxscore=0 mlxlogscore=637 lowpriorityscore=0 phishscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2309180000 definitions=main-2310130116 Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org On Mon, 2023-09-04 at 15:34 +0200, Roberto Sassu wrote: [..] > It is useful for IMA to calculate the digest of the file content, just > before a file descriptor is closed, and update the security.ima xattr with > the new value. --> before the last file descriptor opened for write is closed -- thanks, Mimi