[tor-bugs] #28874 [Applications/Tor Browser]: https://browserleaks.com/webgl crashes tab on 64bit Tor Browser for Windows

[Tor Bug Tracker & Wiki]

#28874: https://browserleaks.com/webgl crashes tab on 64bit Tor Browser for Windows
------------------------------------------+-----------------------
     Reporter:  gk                        |      Owner:  tbb-team
         Type:  defect                    |     Status:  new
     Priority:  High                      |  Milestone:
    Component:  Applications/Tor Browser  |    Version:
     Severity:  Normal                    |   Keywords:  tbb-crash
Actual Points:                            |  Parent ID:
       Points:                            |   Reviewer:
      Sponsor:                            |
------------------------------------------+-----------------------
 On our blog one user noted that https://browserleaks.com/webgl is crashing
 their tab reliably using 8.5a6 in the 64bit flavor for Windows. This does
 not happen with the 32bit variant. And neither does this happen with
 vanilla Firfox 60.4.0esr.

 It seems that a bare Firefox compiled our way without any Tor Browser
 patches is crashing as well. Thus, I wonder whether we hit a GCC bug or
 something that is only affecting some 64bit system. Mysterious.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/28874>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online