Considering shipping ssh-keysign non-setuid

Marc Haber mh+openssh-unix-dev at zugschlus.de
Sat May 16 03:40:42 AEST 2026


On Fri, May 15, 2026 at 07:53:33AM -0600, Theo de Raadt wrote:
>I'm pretty sure that would be a mistake.
>
>The problem is not ssh-keysign.
>
>It is a kernel bug.
>
>It affects any setuid program and it is my understanding that a typical
>Linux ships with almost a hundred of those.

Fully agreed. Would you disagree if I said that it's a good idea to 
reduce the number of suid binaries in a deployed system? What would be 
the consequences of making this mistake in Debian?

Greetings
Marc

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