Re: O_NOLINK for open()

Bodo Eggert
2007-09-14T10:30:28Z

Brent Casavant <bcasavan@sgi.com> wrote:

[...]
> Hmm. This will work as long as the peer process is running setuid
> to it's own unique user. Excellent idea! Since I need to make the
> program setuid to avoid non-priveleged ptrace attacks, this is a
> terrific solution.

Tried that:

~ > cd tmp
~/tmp > cp /bin/sleep .
~/tmp > chmod u+s sleep
~/tmp > ./sleep 2147483647 &
[1] 2823
~/tmp > strace -p 2823
Process 2823 attached - interrupt to quit
setup(

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