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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. PaX Team‏ @paxteam 28 Apr 2017
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      Replying to @comex @_pablosole_ and

      you clearly have no idea what it took to protect linux with RAP. it's the *most* complex feature of PaX by far.

      1 reply 0 retweets 2 likes
    2. comex‏ @comex 28 Apr 2017
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      Replying to @paxteam @_pablosole_ and

      I could be mistaken on that point, since of course RAP is closed and I can't inspect it. (Less certainty is why I said "I don't think".)

      2 replies 0 retweets 0 likes
    3. Pablo Sole‏ @_pablosole_ 28 Apr 2017
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      Replying to @comex @paxteam and

      scripts/gcc-plugins/rap_plugin/rap_plugin.c, What do you mean it is "closed"? you can totally inspect it and make your very own even...

      1 reply 0 retweets 1 like
    4. comex‏ @comex 28 Apr 2017
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      Replying to @_pablosole_ @paxteam and

      AFAIK the formerly-public version was not the complete RAP and missing critical parts.

      1 reply 0 retweets 0 likes
    5. Hector Martin‏ @marcan42 28 Apr 2017
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      Replying to @comex @_pablosole_ and

      It doesn't even protect return addresses, just indirect calls... so it does nothing to stop ROP.

      2 replies 0 retweets 0 likes
    6. PaX Team‏ @paxteam 28 Apr 2017
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      Replying to @marcan42 @comex and

      in your expert opinion what does scripts/gcc-plugins/rap_plugin/rap_ret_pass.c do? oopsie... you goofed up again ;)

      1 reply 0 retweets 0 likes
    7. Hector Martin‏ @marcan42 28 Apr 2017
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      Replying to @paxteam @comex and

      Oh, you decided to stop nerfing RAP in the public release? Good for you! Because that file magically appeared in 4.9 and wasn't in 4.8.

      2 replies 0 retweets 1 like
    8. Pablo Sole‏ @_pablosole_ 28 Apr 2017
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      Replying to @marcan42 @paxteam and

      It is in 4.8.17, and 4.7.10, and 4.6.5 (July last year), you're really up for complaining about whatever right?

      2 replies 0 retweets 0 likes
    9. Hector Martin‏ @marcan42 28 Apr 2017
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      Replying to @_pablosole_ @paxteam and

      No it isn't. They announced this 3 months ago. https://grsecurity.net/rap_announce2.php … $ grep rap_ret_pass grsecurity-3.1-4.8.17-201701151620.patch $

      2 replies 0 retweets 0 likes
    10. Pablo Sole‏ @_pablosole_ 28 Apr 2017
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      Replying to @marcan42 @paxteam and

      I meant RAP in general, the ret pass was not there (was not even announced at that date), but the rap_fptr_pass has been there for a while

      1 reply 0 retweets 0 likes
      Hector Martin‏ @marcan42 29 Apr 2017
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      Replying to @_pablosole_ @paxteam and

      We were explicitly and clearly talking about the ret pass, which *was* announced (for the paid version only): https://grsecurity.net/rap_announce.php …

      12:23 AM - 29 Apr 2017
      1 reply 0 retweets 0 likes
        1. New conversation
        1. PaX Team‏ @paxteam 29 Apr 2017
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          Replying to @marcan42 @_pablosole_ and

          more lies ;). do you understand the difference between 'probabilistic' and 'deterministic'?

          1 reply 0 retweets 0 likes
        2. Hector Martin‏ @marcan42 29 Apr 2017
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          Replying to @paxteam @_pablosole_ and

          Protip: you don't get to claim something was "always going to be released" after you release it without ever announcing that.

          3 replies 0 retweets 0 likes
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