Re: [PATCH bpf-next v8 01/11] fs,security: Add a security blob to nameidata

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On Tue, Feb 27, 2018 at 01:41:11AM +0100, Mickaël Salaün wrote:
> The function current_nameidata_security(struct inode *) can be used to
> retrieve a blob's pointer address tied to the inode being walk through.
> This enable to follow a path lookup and know where an inode access come
> from. This is needed for the Landlock LSM to be able to restrict access
> to file path.
> 
> The LSM hook nameidata_free_security(struct inode *) is called before
> freeing the associated nameidata.

NAK.  Not without well-defined semantics and "some Linux S&M uses that for
something, don't ask what" does not count.
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