[Bug 2619] infinite loop, 100% cpu use in ssh if ^Z is pressed at password prompt

[bugzilla-daemon at bugzilla.mindrot.org]

https://bugzilla.mindrot.org/show_bug.cgi?id=2619

--- Comment #7 from Darren Tucker <dtucker at zip.com.au> ---
(In reply to Jakub Jelen from comment #6)
> I verified that the process with the last patch does not hang
> anymore in our use case.
> 
> According to your strace, if I understand it well, it looks like the
> SIGTTOU signal is re-send and default handler stops the process
> (looks like hang). This looks like ... well ... defined behavior

That's only true for the SIG_DFL action.  If there's a non-default
handler then it could do anything else.  I'd like to see the general
case fixed and upstreamed rather than doing something specific to
openssh.

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