[Bug 3894] SSH unable to open a new channel if the channel open request came right after a channel close request

bugzilla-daemon at mindrot.org bugzilla-daemon at mindrot.org
Fri Nov 14 10:14:59 AEDT 2025


https://bugzilla.mindrot.org/show_bug.cgi?id=3894

--- Comment #2 from Damien Miller <djm at mindrot.org> ---
Actually, there's one more reason and it's possibly the most
significant: we frequently delay channel garbage collection until the
channel has had a chance to write out buffered data.

E.g. is a SSH2_MSG_CHANNEL_CLOSE is received and the channel still has
data to write to its local fds, then we have to wait for that to
complete before the channel can be garbage-collected.

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