Trusty [1] and Utopic[2] already have the fix. Vivid should be unaffected since it uses 3.19 anyway. [1] http://kernel.ubuntu.com/git/ubuntu/ubuntu-trusty.git/

Trusty [1] and Utopic[2] already have the fix. Vivid should be unaffected since it uses 3.19 anyway. [1] http://kernel.ubuntu.com/git/ubuntu/ubuntu-trusty.git/log/?qt=grep&q=+Ensure+get_futex_key_refs%28%29+always+implies+a+barrier&showmsg=1 http://kernel.ubuntu.com/git/ubuntu/ubuntu-trusty.git/log/?q... [2] http://kernel.ubuntu.com/git/ubuntu/ubuntu-utopic.git/commit/?id=566fb44f2341e4defb23457b640cf617e9c7a89a http://kernel.ubuntu.com/git/ubuntu/ubuntu-utopic.git/commit...