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[tor-bugs] #19660 [Core Tor/Tor]: sandboxing backtrace on start
#19660: sandboxing backtrace on start
------------------------------+--------------------------------
Reporter: weasel | Owner:
Type: defect | Status: new
Priority: Medium | Milestone: Tor: 0.2.8.x-final
Component: Core Tor/Tor | Version: Tor: 0.2.8.5-rc
Severity: Normal | Keywords:
Actual Points: | Parent ID:
Points: | Reviewer:
Sponsor: |
------------------------------+--------------------------------
On the maint 0.2.8 branch, starting tor with sandboxing and OrPort enabled
causes a backtrace for me.
{{{
[git|maint-0.2.8] weasel@defiant:~/projects/tor/tor/bt$ make -j4 &&
../bt/src/or/tor --SandBox 1 --OrPort 1930 --PublishServerDescriptor 0
--socksport 19050
[..]
Jul 10 21:14:50.001 [notice] Tor v0.2.8.5-rc-dev (git-a931d157fd5454f6)
running on Linux with Libevent 2.0.21-stable, OpenSSL 1.0.1t and Zlib
1.2.8.
Jul 10 21:14:50.001 [notice] Tor can't help you if you use it wrong! Learn
how to be safe at https://www.torproject.org/download/download#warning
Jul 10 21:14:50.001 [notice] Configuration file "/usr/local/etc/tor/torrc"
not present, using reasonable defaults.
Jul 10 21:14:50.003 [notice] Your ContactInfo config option is not set.
Please consider setting it, so we can contact you if your server is
misconfigured or something else goes wrong.
Jul 10 21:14:50.004 [notice] Based on detected system memory,
MaxMemInQueues is set to 5914 MB. You can override this by setting
MaxMemInQueues by hand.
Jul 10 21:14:50.004 [warn] Tor is running as an exit relay with the
default exit policy. If you did not want this behavior, please set the
ExitRelay option to 0. If you do want to run an exit Relay, please set the
ExitRelay option to 1 to disable this warning, and for forward
compatibility.
Jul 10 21:14:50.004 [warn] In a future version of Tor, ExitRelay 0 may
become the default when no ExitPolicy is given.
Jul 10 21:14:50.004 [notice] Opening Socks listener on 127.0.0.1:19050
Jul 10 21:14:50.004 [notice] Opening OR listener on 0.0.0.0:1930
Jul 10 21:14:50.000 [notice] Configured to measure directory request
statistics, but no GeoIP database found. Please specify a GeoIP database
using the GeoIPFile option.
Jul 10 21:14:50.000 [notice] Your Tor server's identity key fingerprint is
'Unnamed A1B2A21EE24158A285AE84199040984E8530120D'
Jul 10 21:14:50.000 [notice] Bootstrapped 0%: Starting
Jul 10 21:14:50.000 [notice] Guessed our IP address as 86.59.30.37
(source: 86.59.21.38).
============================================================ T= 1468178090
(Sandbox) Caught a bad syscall attempt (syscall socket)
../bt/src/or/tor(+0x1504d6)[0x7f38ef7fa4d6]
/lib/x86_64-linux-gnu/libc.so.6(socket+0x7)[0x7f38ed9a39f7]
/lib/x86_64-linux-gnu/libc.so.6(socket+0x7)[0x7f38ed9a39f7]
../bt/src/or/tor(tor_open_socket_with_extensions+0x8e)[0x7f38ef7e361e]
../bt/src/or/tor(get_interface_address6_via_udp_socket_hack+0x8c)[0x7f38ef7dff3c]
../bt/src/or/tor(get_interface_address6_list+0x18e)[0x7f38ef7e035e]
../bt/src/or/tor(policies_parse_exit_policy_reject_private+0xf1)[0x7f38ef705c01]
../bt/src/or/tor(policies_parse_exit_policy+0x19f)[0x7f38ef70624f]
../bt/src/or/tor(policies_parse_exit_policy_from_options+0xba)[0x7f38ef70638a]
../bt/src/or/tor(router_build_fresh_descriptor+0x659)[0x7f38ef727c59]
../bt/src/or/tor(router_rebuild_descriptor+0xbd)[0x7f38ef727fcd]
../bt/src/or/tor(router_get_my_routerinfo+0x36)[0x7f38ef7280a6]
../bt/src/or/tor(+0x105095)[0x7f38ef7af095]
../bt/src/or/tor(+0x109298)[0x7f38ef7b3298]
../bt/src/or/tor(connection_dir_reached_eof+0x29)[0x7f38ef7b4db9]
../bt/src/or/tor(+0xea9fb)[0x7f38ef7949fb]
../bt/src/or/tor(+0x40a31)[0x7f38ef6eaa31]
/usr/lib/x86_64-linux-
gnu/libevent-2.0.so.5(event_base_loop+0x7fc)[0x7f38eed333dc]
../bt/src/or/tor(do_main_loop+0x274)[0x7f38ef6eb9f4]
../bt/src/or/tor(tor_main+0x1b95)[0x7f38ef6ef155]
../bt/src/or/tor(main+0x19)[0x7f38ef6e74c9]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)[0x7f38ed8dbb45]
../bt/src/or/tor(+0x3d519)[0x7f38ef6e7519]
}}}
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/19660>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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