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Fri, 13 Oct 2023 13:50:11 GMT Received: from smtpav05.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E0AC258043; Fri, 13 Oct 2023 13:50:10 +0000 (GMT) Received: from smtpav05.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E6E0C58063; Fri, 13 Oct 2023 13:50:07 +0000 (GMT) Received: from li-f45666cc-3089-11b2-a85c-c57d1a57929f.ibm.com (unknown [9.61.129.99]) by smtpav05.wdc07v.mail.ibm.com (Postfix) with ESMTP; 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; 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Fri, 13 Oct 2023 06:50:59 -0700 (PDT) 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