This makes sense to me. Its simpler even than you suggest. I see no good
reason that cloud-init ever should read from stdin, so it should
probably just re-open stdin as /dev/null. Any program that hangs waiting
for input from a non tty like /dev/null is doing things wrong, or is
being invoked incorrectly.
I don't see this as High though, as it can be worked around by not
running programs that wait for input from stdin. Dropping to Medium, and
forwarding to cloud-init upstream project.
** Changed in: cloud-init (Ubuntu)
Status: New => Triaged
** Changed in: cloud-init (Ubuntu)
Importance: High => Medium
** Also affects: cloud-init
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/903993
Title:
Don't hang waiting for input from commands
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