https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=211246
Bug ID: 211246
Summary: [syscons] console and ttyv0 competing for keystrokes
Product: Base System
Version: 10.3-RELEASE
Hardware: i386
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: freebsd-bugs@FreeBSD.org
Reporter: alexander.kl...@physiologie.med.uni-giessen.de
CC: freebsd-i...@freebsd.org
CC: freebsd-i...@freebsd.org
On my system, ttyv0 and console are competing for keystrokes on the
ttyv0-screen. This can be seen when logging in under X, immediately issuing
% xconsole -file /dev/console
in an xterm, switching to ttyv0 by pressing Ctrl+Alt+F1, and then typing some
text.
In most cases, the typed text will appear in the Xconsole-window, and even if
this doesn't happen immediately, hammering the keys fast enough with a few
<Ret>s interspersed will usually make at least some characters appear in the
Xconsole-window.
This might have security implications when parts of login credentials are
redirected.
As an aside, things written to /dev/console invariably appear on the
ttyv0-screen on my system, but are never passed on to xconsole.
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