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- o Major bugfixes:
- - Reject bogus create and relay cells with 0 circuit ID or 0 stream
- ID: these could be used to create unexpected streams and circuits
- which would count as "present" to some parts of Tor but "absent"
- to others, leading to zombie circuits and streams or to a
- bandwidth DOS. Fixes bug 7889; bugfix on every released version of
- Tor. Reported by "oftc_must_be_destroyed".
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