#21514: Deal with W^X backport bustage in upcoming ESR release --------------------------------------+--------------------------------- Reporter: gk | Owner: arthuredelstein Type: task | Status: needs_review Priority: Very High | Milestone: Component: Applications/Tor Browser | Version: Severity: Critical | Resolution: Keywords: TorBrowserTeam201703R | Actual Points: Parent ID: | Points: Reviewer: | Sponsor: --------------------------------------+---------------------------------
Comment (by arthuredelstein): I used VMMap on Windows to examine the memory protections of gk's build from comment:8. Good news and bad news. The bad news is there was one 4k page with RWX protection. The good news is that Jan helped me confirm that this block was far from (and therefore not part of) the 128 MB block allocated for the JIT. All the memory in the JIT block was RX or "Reserved". So I think my JIT `W^X` patch is also working correctly on Windows. But it would be good to track down the cause of the RWX block. I opened #21617 to look at this problem. -- Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21514#comment:12> Tor Bug Tracker & Wiki <https://trac.torproject.org/> The Tor Project: anonymity online _______________________________________________ tor-bugs mailing list tor-bugs@lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-bugs