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Friday, May 21st, 2021

    Time Event
    2:05p
    Security updates for Friday
    Security updates have been issued by Arch Linux (ceph, chromium, firefox, gitlab, hedgedoc, keycloak, libx11, mariadb, opendmarc, prosody, python-babel, python-flask-security-too, redmine, squid, and vivaldi), Debian (lz4), Fedora (ceph and python-pydantic), and openSUSE (cacti, cacti-spine).
    2:36p
    [$] Control-flow integrity in 5.13
    Among the many changes merged for the 5.13 kernel is support for the LLVM
    control-flow integrity (CFI) mechanism    . CFI defends against exploits by
    ensuring that indirect function calls have not been redirected by an
    attacker. Quite a bit of work was needed to make this feature work well
    for the kernel, but the result appears to be production-ready and able to
    defend Linux systems from a range of attacks.
    3:43p
    Perl 5.34.0 released
    Version 5.34.0 of the Perl language has been released.
    "Perl 5.34.0 represents approximately 11 months of development since
    Perl 5.32.0 and contains approximately 280,000 lines of changes across
    2,100 files from 78 authors.    " See this
    page     for a list of changes; they include a new try/catch syntax, a new
    octal syntax, and many improvements to various modules.
    5:13p
    CSIRO's seL4 project shut down
    In 2018, LWN covered a talk by Gernot
    Heiser     about the seL4 project, which has developed an open-source
    operating system for safety-critical applications and gone to the trouble
    of proving its correctness. Much of that work has been done at CSIRO in
    Australia. Heiser has announced
    via Twitter that CSIRO's support for this project is being shut down, with
    the staff being
    redirected to artificial-intelligence projects. Hopefully the seL4 Foundation, established in
    2020, will be able to carry on this interesting work.

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