Tor's Bug Smash Fund: Progress So Far
All contributions made to the Tor Project's Open Collective go towards our Bug Smash Fund. This fund ensures that the Tor Project has a healthy reserve earmarked for maintenance work and smashing the bugs necessary to keep Tor Browser, the Tor network, and the many tools that rely on Tor strong, safe, and running smoothly. Below we are sharing an update, which is a modified version of the a Tor blog post originally published January 21, 2020.
We want to share an update on some of the work the Bug Smash Fund has made possible.
So far, we’ve marked 77 tickets with BugSmashFund. As of today, 56 of those tickets have been closed, and 21 of them are still in progress. With this reserve, we’ve been able to fix bugs and complete necessary maintenance on core tor, bridgedb, Snowflake, and Metrics, as well as complete the Tor Browser ESR 68 migration. Roughly half of the Bug Smash Fund remains available for allocation, and we will continue to tag relevant maintenance work and bug fixing tickets that will be covered with this reserve. Thanks for supporting this work!
Below is a full list of the tickets we’ve closed so far.
Tor Browser – ESR Migration
Tor Browser is built on the Firefox Extended Series Release. When a new ESR is available, we migrate Tor Browser (both desktop and Android), which requires significant attention from the Tor Browser team. The Bug Smash Fund covered the following tickets associated with the ESR 68 migration completed in late 2019.
- 21549 Investigate wasm for linkability/fingerprintability/disk avoidance issues
- 26345 Disable tracking protection UI in FF67-esr
- 28822 re-implement desktop onboarding for ESR 68
- 30304 Browser locale can be obtained via DTD strings
- 30429 Rebase Tor Browser patches for Firefox ESR 68
- 30460 Update TOPL Project to Use Android Toolchain (Firefox 68)
- 30463 Make sure telemetry reporting is disabled in Tor Browser 9
- 30504 Investigate if New Identity works properly after moving to ESR 68
- 30662 Make sure about:newtab is blank
- 30665 Get Firefox 68 ESR Working with latest android toolchain
- 30846 Audit activity-stream for network requests
- 31065 Set network.proxy.allow_hijacking_localhost to true
- 31192 TBA - Support x86_64 target
- 31286 Include bridge configuration into about:preferences
- 31308 Sync mozconfig files used in tor-browser over to tor-browser-build for esr68
- 31448 gold and lld break linking 32bit Linux bundles we need to resort to bfd
- 31450 Still use GCC for 64bit Linux debug builds after switch to 68 ESR
- 31457 disable per-installation profiles
- 31607 App menu items stop working
Bridges are Tor relays that help people circumvent censorship against the Tor network. For several reasons, people may want to ask for a bridge via email, and for these circumstances, we have the [email protected] distribution method. When somebody emails [email protected] from a riseup or Gmail account, the account replies with a bridge. The Bug Smash Fund helped fix bugs related to this mechanism.
Snowflake is a new system to defeat censorship. The Bug Smash Fund also helped us to work on a spec that will contribute to the process of collecting metrics on Snowflake.
The Bug Smash Fund has helped the Network team to fix many bugs—from circuit padding to onion services to documentation—as well as backport many previous bug fixes.
- 25568 hs: Lookup failure cache when introducing to an intro point
- 27992 config DataDirectoryGroupReadable 1 is overridden if you set KeyDir == DataDir
- 30344 conn_read_callback is called on connections that are marked for closed
- 30916 assert in dimap_add_entry()
- 31107 channel: channel_tls_handle_cell() CELL_VERSIONS code reached
- 31111 Properly support two padding machines per circuit
- 31189 potential docs update needed for GuardLifetime?
- 31408 torrc : ClientOnionAuthDir after include directives breaks client to v2 services
- 31466 Consider demoting ".exit is disabled" log message to info
- 31570 INTERNAL ERROR: raw assertion failed (core dump) in termux
- 31571 Add the tor version and a newline to raw_assert()
- 31615 Reorder the early subsystems based on their dependencies
- 31657 Rephrase "missing descriptors" notice log to be less confusing
- 31687 FreeBSD compilation warns with Tor 0.4.1.5
- 31696 Assertion failure in map-anon.c:218
- 31734 Add accessor functions for cb_buf, which enforce locking and unlocking
- 31793 Bug: tor_addr_is_internal() called from src/feature/dirauth/process_descs.c:447 with a non-IP address of type 0
- 31807 Update outdated documentation note for "bridge-distribution"
- 31825 Use the full name of optional modules, rather than an abbreviation
- 31837 Make test_rebind.py more robust
- 31841 test addr/parse takes a long time on master on some machines
- 31884 Define ExecuteBash in the Appveyor error block
- 31897 util/map_anon_nofork test fails on SunOS
- 31939 log spam: Bug: buffers_tls.c:73: buf_read_from_tls: Non-fatal assertion !(buf->datalen >= INT_MAX - at_most) failed.
- 32058 mainloop: make periodic events restartable
- 32060 CID 1454761: wrong type passed to unlock_cb_buf()?
- 32108 tor can overrun its accountingmax if it enters soft hibernation first
- 32124 Interpret --disable-module-dirauth=no correctly
- 32191 when cross-compiling, lzma and zstd will be detected on build system
- 32196 cmux: Implement unit tests
- 32338 Warn about more relative file paths when validating options
- 32352 Stop adding a space when dumping an empty config value
- 32463 TypeError in practracker "includes.py" script
This fund made it possible for the Metrics team to improve tooling, as well as fix a bug in the Tor network data collecting service, CollecTor.
Thank you to everybody who made a contribution to the Bug Smash Fund. This work is critical in helping us to provide safer tools for millions of people around the world exercising their human rights to privacy and freedom online.