[tor-bugs] #22563 [Core Tor/Tor]: Many memory pages in tor.exe for Windows violate W^X

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#22563: Many memory pages in tor.exe for Windows violate W^X
-------------------------------------------------+-------------------------
 Reporter:  arthuredelstein                      |          Owner:
                                                 |  arthuredelstein
     Type:  defect                               |         Status:
                                                 |  accepted
 Priority:  Medium                               |      Milestone:  Tor:
                                                 |  0.3.2.x-final
Component:  Core Tor/Tor                         |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  windows tor-client win32 tor-relay   |  Actual Points:
  security hardening 031-backport                |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
-------------------------------------------------+-------------------------
Changes (by arthuredelstein):

 * status:  new => accepted
 * owner:   => arthuredelstein


Comment:

 I have tracked down the problem and posted a patch for mingw-w64.

 https://sourceforge.net/p/mingw-w64/mailman/message/35935261/

 If they accept the patch, we can add it to our build as well. I have
 confirmed with this patch that no RWX or X/COW pages remain.

 This patch solves at least some of the RWX pages reported in Tor Browser
 for Windows (#22584) as well.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22563#comment:4>
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