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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. Shawn C‏ @citypw 4 Jun 2017
      • Report Tweet
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      Replying to @bleidl

      Ok, it seems reasonable to me. I'm sick of what KSPP/Linux foundation has been doing.

      2 replies 0 retweets 0 likes
    2. Hector Martin‏ @marcan42 5 Jun 2017
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      Replying to @citypw @bleidl

      Some of us are sick of what grsec/spender has been doing... spender apparently bans people just for saying hi on the KSPP mailing list.

      2 replies 0 retweets 2 likes
    3. Shawn C‏ @citypw 5 Jun 2017
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      Replying to @marcan42 @bleidl

      That's not my concerns. I still think LF/CII should buy me PaX/Grsec's test patch. Spender/PaX team treated us well in past 16 yrs until..

      1 reply 0 retweets 0 likes
    4. Hector Martin‏ @marcan42 5 Jun 2017
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      Replying to @citypw @bleidl

      It makes no sense to blame other people for Spender's decision to stop sharing. That decision is his and his alone.

      2 replies 0 retweets 3 likes
    5. Tim Brown‏ @timb_machine 21 Dec 2017
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      Replying to @marcan42 @citypw @bleidl

      Can you spell regression. In the views of some, KSPP/LF can't be trusted not to make a hash of kernel security engineering.

      1 reply 0 retweets 1 like
    6. Bruce Leidl‏ @bleidl 21 Dec 2017
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      Replying to @timb_machine @marcan42 @citypw

      The vulnerability is not something that was introduced by KSPP, and I didn’t mean to imply that at all. The point is that grsecurity has better judgement about disabling dangerous features by default.

      1 reply 2 retweets 2 likes
    7. Hector Martin‏ @marcan42 21 Dec 2017
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      Replying to @bleidl @timb_machine @citypw

      As long as you don't care about DoS exploits and randomly crashing kernels. grsec has *terrible* judgement about those, and its default config is plagued with issues like that. They don't consider them real security problems.

      2 replies 0 retweets 2 likes
    8. Piotr Karbowski‏ @slashbeast 21 Dec 2017
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      Replying to @marcan42 @bleidl and

      Can you elaborate what are the features in default config that you speak of?

      1 reply 0 retweets 0 likes
    9. Hector Martin‏ @marcan42 21 Dec 2017
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      Replying to @slashbeast @bleidl and

      SIZE_OVERFLOW for one. That compiler plugin is fundamentally broken and has endless false positives they keep missing, causing oopses or panics. At least once they actually managed to turn a false positive into a real problem with their "fix". I've been bit by S_O several times.

      1 reply 0 retweets 0 likes
    10. Hector Martin‏ @marcan42 21 Dec 2017
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      Replying to @marcan42 @slashbeast and

      Not sure if it's still up, but back when the patches we're public and support was via forum, every second thread was a new S_O false positive. And they missed obvious ones, like fixing an IPv4 code path without looking at the sibling IPv6 code path.

      1 reply 0 retweets 0 likes
      Hector Martin‏ @marcan42 21 Dec 2017
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      Replying to @marcan42 @slashbeast and

      Hector Martin Retweeted Hector Martin

      An S_O false positive with a broken, obviously untested and unreviewed fix is how I wound up panicking my kernel by pasting a long line of text into my terminal, also reproducible as a tweet-sized local DoS.https://twitter.com/marcan42/status/724745886794833920 …

      Hector Martin added,

      Hector Martin @marcan42
      How to panic a current @grsecurity kernel as any user: $ script /dev/null </dev/zero (seriously, WTF)
      4:13 PM - 21 Dec 2017
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