tree 0ad08fd14054e49505997e0fd09b7ab4cd1cd08c
parent 46e76b0c807df39c2220f5dbb92075157d2dfe63
author Jann Horn <jann@thejh.net> 1451106048 +0100
committer Kees Cook <keescook@google.com> 1460144961 -0700

UPSTREAM: seccomp: always propagate NO_NEW_PRIVS on tsync

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>
Cc: stable@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>

Bug: 28020023
Patchset: seccomp

(cherry picked from commit 103502a35cfce0710909da874f092cb44823ca03)
Signed-off-by: Kees Cook <keescook@google.com>
Change-Id: Ie7cd72d68d72699d4923b665f1d0af55e7ac5024