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/usr/share/doc/ltp-kernel-test/README.Debian is in ltp-kernel-test 20091231+dfsg-1ubuntu2.

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LIMITED SECURITY SUPPORT

This is a test suite, and as such is only intended to be run on
non-production, single user systems. The scripts use various techniques
that are exploitable in a context of potentially malicious local users.

The Debian security team does not support using this package on machines
with untrusted users.