16 Feb, 2012

1 commit

  • For a process to entirely disable Yama ptrace restrictions, it can use
    the special PR_SET_PTRACER_ANY pid to indicate that any otherwise allowed
    process may ptrace it. This is stronger than calling PR_SET_PTRACER with
    pid "1" because it includes processes in external pid namespaces. This is
    currently needed by the Chrome renderer, since its crash handler (Breakpad)
    runs external to the renderer's pid namespace.

    Signed-off-by: Kees Cook
    Signed-off-by: James Morris

    Kees Cook
     

10 Feb, 2012

1 commit

  • This adds the Yama Linux Security Module to collect DAC security
    improvements (specifically just ptrace restrictions for now) that have
    existed in various forms over the years and have been carried outside the
    mainline kernel by other Linux distributions like Openwall and grsecurity.

    Signed-off-by: Kees Cook
    Acked-by: John Johansen
    Signed-off-by: James Morris

    Kees Cook