[openssh-commits] [openssh] branch master updated (6520c488 -> bc16667b)

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Tue Feb 22 15:39:45 AEDT 2022

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dtucker pushed a change to branch master
in repository openssh.

      from  6520c488  Add Alpine Linux test VM.
       new  bc16667b  Extend select+rlimit sanbox test to include poll.

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commit bc16667b4a1c3cad7029304853c143a32ae04bd4
Author: Darren Tucker <dtucker at dtucker.net>
Date:   Tue Feb 22 15:29:22 2022 +1100

    Extend select+rlimit sanbox test to include poll.
    POSIX specifies that poll() shall fail if "nfds argument is greater
    than {OPEN_MAX}".  The setrlimit sandbox sets this to effectively zero
    so this causes poll() to fail in the preauth privsep process.
    This is likely the underlying cause for the previously observed similar
    behaviour of select() on plaforms where it is implement in userspace on
    top of poll().

Summary of changes:
 configure.ac | 28 +++++++++++++++++++++++-----
 1 file changed, 23 insertions(+), 5 deletions(-)

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