| Date | Mon, 15 Jan 2024 19:15:08 +0000 | From | Al Viro <> | Subject | Re: [PATCH v9 13/25] security: Introduce file_release hook |
| |
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.
|