James Peach created MESOS-9175:
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Summary: `Subprocess::FD` can leak file descriptors into child
processes
Key: MESOS-9175
URL: https://issues.apache.org/jira/browse/MESOS-9175
Project: Mesos
Issue Type: Bug
Components: libprocess
Reporter: James Peach
When you use the {{subprocess}} API, you can use {{Subprocess::FD()}} to define
how the standard IO streams are attached to the child process. The default type
argument is {{IO::DUPLICATED}}. In that case, the descriptors are duplicated
with {{dup(2)}} in the parent process. The new file descriptors will have their
close-on-exec flag cleared and could then be inherited to undefined child
processes.
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