[tbb-bugs] #14978 [Tor Browser]: Tor browser bundle random segfault

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#14978: Tor browser bundle random segfault
--------------------------+-------------------------------
 Reporter:  esmedoescode  |          Owner:  tbb-team
     Type:  defect        |         Status:  new
 Priority:  normal        |      Milestone:
Component:  Tor Browser   |        Version:  Tor: 0.2.5.10
 Keywords:  segfault      |  Actual Points:
Parent ID:                |         Points:
--------------------------+-------------------------------
 I know the info here is pretty sparse, but I wasn't prepared for it.
 ulimit and logging turned up for next time.

 TBB had been running for probably an hour or two, had had up to about
 20-30 tabs open, but at the time of crash was down to 5. None were hidden
 services; two were guardian.co.uk, the rest Bruce Schneier's blog.

 Log:

 $ start-tor-browser
 Launching Tor Browser for Linux in $HOME/Downloads/Internet/Tor/tor-
 browser_en-US/Browser...
 Feb 21 02:02:03.207 [notice] Tor v0.2.5.10 (git-13318a95ddfbbf8d) running
 on Linux with Libevent 2.0.21-stable, OpenSSL 1.0.1i and Zlib 1.2.7.
 Feb 21 02:02:03.208 [notice] Tor can't help you if you use it wrong! Learn
 how to be safe at https://www.torproject.org/download/download#warning
 Feb 21 02:02:03.239 [notice] Read configuration file
 "$HOME/Downloads/Internet/Tor/tor-browser_en-
 US/Browser/TorBrowser/Data/Tor/torrc-defaults".
 Feb 21 02:02:03.269 [notice] Read configuration file
 "$HOME/Downloads/Internet/Tor/tor-browser_en-
 US/Browser/TorBrowser/Data/Tor/torrc".
 Feb 21 02:02:03.332 [notice] Opening Socks listener on 127.0.0.1:9150
 Feb 21 02:02:03.333 [notice] Opening Control listener on 127.0.0.1:9151
 Feb 21 02:02:03.000 [notice] Parsing GEOIP IPv4 file
 $HOME/Downloads/Internet/Tor/tor-browser_en-
 US/Browser/TorBrowser/Data/Tor/geoip.
 Feb 21 02:02:03.000 [notice] Parsing GEOIP IPv6 file
 $HOME/Downloads/Internet/Tor/tor-browser_en-
 US/Browser/TorBrowser/Data/Tor/geoip6.
 Feb 21 02:02:03.000 [notice] Bootstrapped 0%: Starting
 Feb 21 02:02:04.000 [notice] Bootstrapped 5%: Connecting to directory
 server
 Feb 21 02:02:04.000 [notice] We now have enough directory information to
 build circuits.
 Feb 21 02:02:04.000 [notice] Bootstrapped 80%: Connecting to the Tor
 network
 Feb 21 02:02:04.000 [notice] New control connection opened from 127.0.0.1.
 Feb 21 02:02:04.000 [notice] New control connection opened from 127.0.0.1.
 Feb 21 02:02:04.000 [notice] Bootstrapped 85%: Finishing handshake with
 first hop
 Feb 21 02:02:05.000 [notice] Bootstrapped 90%: Establishing a Tor circuit
 Feb 21 02:02:06.000 [notice] Tor has successfully opened a circuit. Looks
 like client functionality is working.
 Feb 21 02:02:06.000 [notice] Bootstrapped 100%: Done
 Feb 21 02:02:06.000 [notice] Our directory information is no longer up-to-
 date enough to build circuits: We need more microdescriptors: we have
 5626/6882, and can only build 53% of likely paths. (We have 81% of guards
 bw, 81% of midpoint bw, and 81% of exit bw.)
 Feb 21 02:02:06.000 [notice] I learned some more directory information,
 but not enough to build a circuit: We need more microdescriptors: we have
 5626/6882, and can only build 53% of likely paths. (We have 81% of guards
 bw, 81% of midpoint bw, and 81% of exit bw.)
 Feb 21 02:02:07.000 [notice] Tor has successfully opened a circuit. Looks
 like client functionality is working.
 Feb 21 02:02:07.000 [notice] We now have enough directory information to
 build circuits.
 Feb 21 02:02:08.000 [notice] New control connection opened from 127.0.0.1.
 Feb 21 02:07:47.000 [notice] Have tried resolving or connecting to address
 '[scrubbed]' at 3 different places. Giving up.
 Feb 21 02:08:06.000 [warn] Rejecting SOCKS request for anonymous
 connection to private address [scrubbed].
 1424484486934   addons.update-checker   WARN    HTTP Request failed for an
 unknown reason
 1424484486938   addons.update-checker   WARN    HTTP Request failed for an
 unknown reason
 Feb 21 02:14:09.000 [notice] Closing stream for '[scrubbed].onion': hidden
 service is unavailable (try again later).
 Feb 21 02:28:47.000 [notice] Closing stream for '[scrubbed].onion': hidden
 service is unavailable (try again later).
 Feb 21 03:07:05.000 [notice] Owning controller connection has closed --
 exiting now.
 $HOME/bin/start-tor-browser: line 301: 30423 Segmentation fault
 TOR_CONTROL_PASSWD=${TOR_CONTROL_PASSWD} ./firefox --class "Tor Browser"
 -profile TorBrowser/Data/Browser/profile.default "${@}"
 Tor Browser exited abnormally.  Exit code: 139

 $ uname -a
 Linux $HOSTNAME 3.2.0-4-amd64 #1 SMP Debian 3.2.65-1+deb7u1 x86_64
 GNU/Linux

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/14978>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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