/lib/modules/3.19.0-56-generic/vdso/ is in linux-image-3.19.0-56-generic 3.19.0-56.62~14.04.1.
This file is owned by root:root, with mode 0o755.
..
/lib/modules/3.19.0-56-generic/vdso/.build-id/
/lib/modules/3.19.0-56-generic/vdso/.build-id/30/
/lib/modules/3.19.0-56-generic/vdso/.build-id/30/d459f25ddc982d3b386bf174f1b614f8f6f2fb.debug
/lib/modules/3.19.0-56-generic/vdso/.build-id/7e/
/lib/modules/3.19.0-56-generic/vdso/.build-id/7e/9c8b388525acf895ad6668340332a3e4f169a6.debug
/lib/modules/3.19.0-56-generic/vdso/.build-id/92/
/lib/modules/3.19.0-56-generic/vdso/.build-id/92/f8f685083d9c7b3520e3b311d0925997d7e805.debug
/lib/modules/3.19.0-56-generic/vdso/.build-id/9a/
/lib/modules/3.19.0-56-generic/vdso/.build-id/9a/4897d4b6039c3a0b749efa2ce5ed1951da284a.debug
/lib/modules/3.19.0-56-generic/vdso/.build-id/fd/
/lib/modules/3.19.0-56-generic/vdso/.build-id/fd/7c0a73d262541df50cbe1fc9bc10b30abe9425.debug
/lib/modules/3.19.0-56-generic/vdso/vdso32-int80.so
/lib/modules/3.19.0-56-generic/vdso/vdso32-syscall.so
/lib/modules/3.19.0-56-generic/vdso/vdso32-sysenter.so
/lib/modules/3.19.0-56-generic/vdso/vdso64.so
/lib/modules/3.19.0-56-generic/vdso/vdsox32.so