Might also want to look at $^F (see perlvar) and/or explicitly clearing CLOEXEC on the descriptor with fcntl.

The cake is a lie.
The cake is a lie.
The cake is a lie.

In reply to Re: Leaking a file descriptor into a child to use with /proc/self/fd/3 by Fletch
in thread Leaking a file descriptor into a child to use with /proc/self/fd/3 by ewheeler

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