Bug#1117631: openssh: Connection sharing is very sluggish.

Control: severity 1117574 serious
Control: severity 1117594 serious
Control: reassign -1 openssh-client
Control: merge 1117574 1117594 -1

On Wed, Oct 08, 2025 at 11:11:06PM +0200, Sebastian Andrzej Siewior wrote:
>Package: src:openssh
>Version: 1:10.1p1-1
>Severity: serious
>Tags: upstream fixed-upstream patch
>control: forwarded -1 https://bugzilla.mindrot.org/show_bug.cgi?id=3872
>
>Since the 10.1p1 connection sharing (ssh -M, ControlMaster yes) is very
>sluggish. It turns to be a openssh regression that is already fixed as
>of commit beae06f56e0d0 ("upstream: don't reuse c->isatty for signalling
>that the remote channel") in the portable tree. Please find attached the
>patch.

Already fixed in git 
(https://salsa.debian.org/ssh-team/openssh/-/commit/67d0352f7de9a3af253f62d7db365c5fdf9a1bc6).  
I'm just waiting for some upstream feedback on a different bug before 
uploading it.

Thanks,