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@xxxxxxxxxx> > > > > 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
