Jann Horn df86161e44 seccomp: always propagate NO_NEW_PRIVS on tsync ...

commit 103502a35c upstream.

Before this patch, a process with some permissive seccomp filter
that was applied by root without NO_NEW_PRIVS was able to add
more filters to itself without setting NO_NEW_PRIVS by setting
the new filter from a throwaway thread with NO_NEW_PRIVS.

Signed-off-by: Jann Horn <jann@thejh.net>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2016-03-03 15:07:25 -08:00

25 KiB

Raw Blame History

View Raw