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pcwalton's profile
Patrick Walton
Patrick Walton
Patrick Walton
@pcwalton

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Patrick Walton

@pcwalton

Research engineer at Mozilla

San Francisco, CA
pcwalton.github.io
Joined November 2009

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    1. DanielMicay‏ @DanielMicay 17 Apr 2019
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      Replying to @DanielMicay @vyodaiken and

      CVE databases just aren't usable for determining most of the vulnerability fixes going into a project. Linux distributions like Debian relying on CVEs to determine which fixes need to be backported have serious security issues. Greg KH spells this out again and again for Linux.

      1 reply 0 retweets 1 like
    2. DanielMicay‏ @DanielMicay 17 Apr 2019
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      Replying to @DanielMicay @vyodaiken and

      Also, the Linux kernel having far more CVE assignments than say the FreeBSD kernel doesn't mean it's less secure or had more vulnerabilities. In fact, the lack of security research / fuzzing / dynamic analysis being done to find these bugs in other kernels is a very bad thing.

      1 reply 0 retweets 1 like
    3. ᛞᛖᛒᛞᚱᚢᛈ@bsd.network‏ @debdrup 18 Apr 2019
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      Replying to @DanielMicay @vyodaiken and

      Minor nit: Nowadays FreeBSD is being both fuzzed by syzkaller and has clang and other analyzers run against it with the analysis target of bmake, as well as coverty doing static analysis. Still wouldn't be a bad thing to have more security research being done on FreeBSD, though.

      1 reply 0 retweets 0 likes
    4. ᛞᛖᛒᛞᚱᚢᛈ@bsd.network‏ @debdrup 18 Apr 2019
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      Replying to @vyodaiken @DanielMicay and

      Doesn't seem completely useless: https://freshbsd.org/search?q=CID%5C%3A&project%5B%5D=freebsd&repository%5B%5D=src&branches%5B%5D=head&sort=commit_date …

      1 reply 0 retweets 0 likes
    5. ᛞᛖᛒᛞᚱᚢᛈ@bsd.network‏ @debdrup 18 Apr 2019
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      Replying to @vyodaiken @DanielMicay and

      I respect Daniel (not _just_ because we have first names in common :P), but I've heard that argument made elsewhere and I got the understand that it was on the basis of Coverty not being worth setting up - not necessarily that it's worth tearing down if it's already working?

      1 reply 0 retweets 0 likes
    6. ᛞᛖᛒᛞᚱᚢᛈ@bsd.network‏ @debdrup 18 Apr 2019
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      Replying to @vyodaiken @DanielMicay and

      FreeBSD does care about code quality, though - everything from style upwards gets brought up regularily.

      0 replies 0 retweets 0 likes
      Patrick Walton‏ @pcwalton 18 Apr 2019
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      Replying to @vyodaiken @debdrup and

      As far as I know we ran Coverity on Gecko way back in the day and it didn’t really do anything to address the flood of security problems.

      8:13 AM - 18 Apr 2019
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Rich Felker‏ @RichFelker 18 Apr 2019
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          Replying to @pcwalton @vyodaiken and

          I think a distinction needs to be made between claims. I agree it's implausible that static analysis can find/fix any significant portion of flaws in C code with fundamentally bad object lifetime and ownership policy. OTOH...

          1 reply 0 retweets 0 likes
        3. Rich Felker‏ @RichFelker 18 Apr 2019
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          Replying to @RichFelker @pcwalton and

          If you have a C codebase that's not doing wacky things with object lifetime and ownership, it seems *plausible* that advanced static analysis could find and help you fix most serious bugs.

          0 replies 0 retweets 1 like
        4. End of conversation

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