On 07/15/2013 07:32 PM, Richard W.M. Jones wrote:

Why?

Without it, it's possible to exploit certain weaknesses to make /etc/shadow word-readable or worse, for example.

Hard links are fundamentally incompatible with the way we run SELinux, and this change mitigates that issue to some extent.

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Florian Weimer / Red Hat Product Security Team
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