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Petr Písař authored
Traditional \E[2J sequence erases console display but scroll-back buffer and underlying device (frame) buffer keep data that can be accessed by scrolling console back. This patch introduce new \E[J parameter 3 that allows to scramble scroll-back buffer explicitly. Session locking programs (screen, vlock) can use it to prevent attacker to browse locked console history. Signed-off-by:
Petr Písař <ppisar@redhat.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@suse.de>
f8df13e0