| Subject | Re: [PATCH v9 13/25] security: Introduce file_release hook | From | Roberto Sassu <> | Date | Tue, 16 Jan 2024 09:47:34 +0100 |
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On Mon, 2024-01-15 at 19:15 +0000, Al Viro wrote: > On Mon, Jan 15, 2024 at 07:17:57PM +0100, Roberto Sassu wrote: > > From: Roberto Sassu <roberto.sassu@huawei.com> > > > > In preparation for moving IMA and EVM to the LSM infrastructure, introduce > > the file_release hook. > > > > IMA calculates at file close the new digest of the file content and writes > > it to security.ima, so that appraisal at next file access succeeds. > > > > An LSM could implement an exclusive access scheme for files, only allowing > > access to files that have no references. > > Elaborate that last part, please.
Apologies, I didn't understand that either. Casey?
Thanks
Roberto
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