Tor 0.1.0.16 is a bugfix release. It fixes nine rare crash bugs, and
includes backports from the 0.1.1.x tree to be more aggressive about
retrying failed streams.
http://tor.eff.org/download
o Crash bugfixes on 0.1.0.x:
- On Windows, build with a libevent patch from "I-M Weasel" to avoid
corrupting the heap, losing FDs, or crashing when we need to resize
the fd_sets. (This affects the Win32 binaries, not Tor's sources.)
- It turns out sparc64 platforms crash on unaligned memory access
too -- so detect and avoid this.
- Handle truncated compressed data correctly (by detecting it and
giving an error).
- Fix possible-but-unlikely free(NULL) in control.c.
- When we were closing connections, there was a rare case that
stomped on memory, triggering seg faults and asserts.
- Avoid potential infinite recursion when building a descriptor. (We
don't know that it ever happened, but better to fix it anyway.)
- We were neglecting to unlink marked circuits from soon-to-close OR
connections, which caused some rare scribbling on freed memory.
- Fix a memory stomping race bug when closing the joining point of
two rendezvous circuits.
- Fix an assert in time parsing found by Steven Murdoch.
o Other bugfixes on 0.1.0.x:
- When we're doing reachability testing, provide more useful log
messages so the operator knows what to expect.
- Do not check whether DirPort is reachable when we are suppressing
advertising it because of hibernation.
- When building with -static or on Solaris, we sometimes needed -ldl.
- One of the dirservers (tor26) changed its IP address.
- When we're deciding whether a stream has enough circuits around
that can handle it, count the freshly dirty ones and not the ones
that are so dirty they won't be able to handle it.
- When we're expiring old circuits, we had a logic error that caused
us to close new rendezvous circuits rather than old ones.
- Give a more helpful log message when you try to change ORPort via
the controller: you should upgrade Tor if you want that to work.
- We were failing to parse Tor versions that start with "Tor ".
- Tolerate faulty streams better: when a stream fails for reason
exitpolicy, stop assuming that the router is lying about his exit
policy. When a stream fails for reason misc, allow it to retry just
as if it was resolvefailed. When a stream has failed three times,
reset its failure count so we can try again and get all three tries.
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