[tor-bugs] #19857 [Applications/Tor Browser]: Tor Browser hardened (6.5a2) crashes after update

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#19857: Tor Browser hardened (6.5a2) crashes after update
-------------------------------------+-------------------------------------
     Reporter:  gk                   |      Owner:  tbb-team
         Type:  defect               |     Status:  new
     Priority:  High                 |  Milestone:
    Component:  Applications/Tor     |    Version:
  Browser                            |   Keywords:  tbb-crash, tbb-
     Severity:  Normal               |  regression, TorBrowserTeam201608
Actual Points:                       |  Parent ID:
       Points:                       |   Reviewer:
      Sponsor:                       |
-------------------------------------+-------------------------------------
 STR:

 1) Download 6.5a1-hardened
 2) Download the corresponding debug files and move `Debug` to
 `Browser/.debug`
 3) Start 6.5a1-hardened as usual and update
 4) After restart the browser window is visible shortly but then Tor
 Browser crashes with
 {{
 ASAN:SIGSEGV
 =================================================================
 ==7246==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000
 (pc 0x7faa929b5d27 bp 0x7faa9bf89170 sp 0x7faa9bf89040 T4)
 SRAT init
 SRAT warning: cannot find Memory Layout File. Stack trace will be probably
 wrong.
 ASAN:SIGSEGV
 ==7246==AddressSanitizer: while reporting a bug found another one.
 Ignoring.
 }}}

 Starting again works and not moving the debug files into `Browser` +
 updating is fine, too.

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Ticket URL: <https://troodi.torproject.org/projects/tor/ticket/19857>
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