Sudo hangs when IO logging is enabled
Issue
When sudo is configured with IO logging enabled and a command that produces output to terminal is run, it does sometimes hang in a poll() system call indefinitely. Only sending a SIGKILL to the main sudo process terminates it.
Sometimes the child process (the actual command being run in sudo) is left in a zombie (Z) state.
Environment
- Red Hat Enterprise Linux 7.4
sudo-1.8.19p2with IO logging enabled
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