Re: [PATCH 21/28] security: Introduce inode_post_remove_acl hook

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On Mon, 2023-03-06 at 10:22 -0500, Stefan Berger wrote:
> 
> On 3/3/23 13:18, Roberto Sassu wrote:
> > From: Roberto Sassu <roberto.sassu@xxxxxxxxxx>
> > 
> > In preparation for moving IMA and EVM to the LSM infrastructure, introduce
> > the inode_post_remove_acl hook.
> > 
> > Signed-off-by: Roberto Sassu <roberto.sassu@xxxxxxxxxx>
> > ---
> >   
> > +/**
> > + * security_inode_post_remove_acl() - Update inode sec after remove_acl op
> > + * @idmap: idmap of the mount
> > + * @dentry: file
> > + * @acl_name: acl name
> > + *
> > + * Update inode security field after successful remove_acl operation on @dentry
> > + * in @idmap. The posix acls are identified by @acl_name.
> > + */
> > +void security_inode_post_remove_acl(struct mnt_idmap *idmap,
> > +				    struct dentry *dentry, const char *acl_name)
> > +{
> > +	if (unlikely(IS_PRIVATE(d_backing_inode(dentry))))
> > +		return;
> 
> Was that a mistake before that EVM and IMA functions did not filtered out private inodes?

Looks like that. At least for hooks that are not called from
security.c.

Thanks

Roberto




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