[LTP] [PATCH] proc01: whitelist biba attr files returning EINVAL

Petr Vorel pvorel@suse.cz
Fri Apr 10 10:53:05 CEST 2026


> Hi!
> > proc01 already treats several attr files under /proc/self/attr and
> > /proc/self/task/*/attr as known exceptions that may return EINVAL
> > on read.

> > On systems exposing biba attr files, reads from
> > /proc/self/attr/biba/* and /proc/self/task/*/attr/biba/* also
> > return EINVAL, which makes proc01 report false failures.

> What is biba? There does not seem to be any mention of string 'biba' in
> upstream kernel. As a rule we do not add any fixes for out-of-tree
> patches to LTP.

+1, I was going to ask the same. Moreover, there is not even out-of-tree code
publicly available.

Kind regards,
Petr


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