[tor-bugs] #9249 [Tor]: GSOC seccomp stage 2

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#9249: GSOC seccomp stage 2
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     Reporter:  ctoader      |      Owner:  nickm
         Type:  enhancement  |     Status:  needs_revision
     Priority:  normal       |  Milestone:
    Component:  Tor          |    Version:
   Resolution:               |   Keywords:  tor-relay gsoc seccomp sandbox
Actual Points:               |  Parent ID:  #5756
       Points:               |
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Changes (by nickm):

 * status:  needs_review => needs_revision


Comment:

 I've pushed a "gsoc-cap-stage2" branch to my public repository.  It fixes
 stuff up on the computers I usually build on.

 If our "interned string" magic is going to be any good, we need to
 disallow any attempt to munmap or mremap the interned string mapping. We
 also need to stop any attempt to use mprotect to make it unprotected by
 setting PROT_READ|PROT_WRITE on any part of it.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/9249#comment:14>
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