/lib/modules/3.16.0-33-generic/vdso/ is in linux-image-3.16.0-33-generic 3.16.0-33.44~14.04.1.
This file is owned by root:root, with mode 0o755.
..
/lib/modules/3.16.0-33-generic/vdso/.build-id/
/lib/modules/3.16.0-33-generic/vdso/.build-id/55/
/lib/modules/3.16.0-33-generic/vdso/.build-id/55/52b9335dde9349419ba10896c1e75c9432a946.debug
/lib/modules/3.16.0-33-generic/vdso/.build-id/83/
/lib/modules/3.16.0-33-generic/vdso/.build-id/83/d8ff0c596232d17ade7ac14796a78d3e92228d.debug
/lib/modules/3.16.0-33-generic/vdso/.build-id/8e/
/lib/modules/3.16.0-33-generic/vdso/.build-id/8e/0551cf7534cf75bd0fd2f02684fd22fad731b0.debug
/lib/modules/3.16.0-33-generic/vdso/.build-id/9b/
/lib/modules/3.16.0-33-generic/vdso/.build-id/9b/937b2d3523c3003693580bc9cc441e4076d9bb.debug
/lib/modules/3.16.0-33-generic/vdso/.build-id/da/
/lib/modules/3.16.0-33-generic/vdso/.build-id/da/c05ef1dc3ff2e7544c18ba6450ee6e2148dfa5.debug
/lib/modules/3.16.0-33-generic/vdso/vdso32-int80.so
/lib/modules/3.16.0-33-generic/vdso/vdso32-syscall.so
/lib/modules/3.16.0-33-generic/vdso/vdso32-sysenter.so
/lib/modules/3.16.0-33-generic/vdso/vdso64.so
/lib/modules/3.16.0-33-generic/vdso/vdsox32.so