[PATCH] evm: Correct inode_init_security hooks behaviors

[Mimi Zohar]

On Tue, 2022-10-25 at 10:21 -0400, Mimi Zohar wrote:
> On Tue, 2022-10-25 at 15:33 +0200, Nicolas Bouchinet wrote:
> > > Agreed, independently as to whether BPF defines a security xattr, if
> > > two LSMs initialize security xattrs, then this change is needed.  Are
> > > there any other examples?
> > 
> > I think that in its current state the kernel cannot load two LSM capable of xattr
> > initialization as they are all defined with the `LSM_FLAG_EXCLUSIVE` flag set.
> > But I may be unaware of other LSM in development stage.
> 
> Casey, Paul, can we get confirmation on this?
> 
> > > 
> > > (nit: I understand the line size has generally been relaxed, but for
> > > IMA/EVM I would prefer it to be remain as 80 chars.)
> > > 
> > 
> > No problem, will change it !
> > 
> > I'll take time to run few tests with BPF and send a patch v3 with new changes.
> 
> Since Roberto's patches will address the BPF bug(s), is this a fix for
> a real bug or a possbile future one.   Cc'ing stable might not be
> necessary.

And the patch description will need to be updated accordingly.

thanks,

Mimi