/lib/modules/3.16.0-44-generic/vdso/ is in linux-image-3.16.0-44-generic 3.16.0-44.59~14.04.1.
This file is owned by root:root, with mode 0o755.
..
/lib/modules/3.16.0-44-generic/vdso/.build-id/
/lib/modules/3.16.0-44-generic/vdso/.build-id/0c/
/lib/modules/3.16.0-44-generic/vdso/.build-id/0c/69a924ecfefbe329cda52be0a36d3241f0d6c0.debug
/lib/modules/3.16.0-44-generic/vdso/.build-id/1d/
/lib/modules/3.16.0-44-generic/vdso/.build-id/1d/e78d2779f4fda3f0fb8a26843e2e28a1ce27b0.debug
/lib/modules/3.16.0-44-generic/vdso/.build-id/26/
/lib/modules/3.16.0-44-generic/vdso/.build-id/26/164fe22a24079529b41ba9f71cbf0f04f3a006.debug
/lib/modules/3.16.0-44-generic/vdso/.build-id/a0/
/lib/modules/3.16.0-44-generic/vdso/.build-id/a0/0a271780a3e039c5d6d9cc3b977c6064e9386b.debug
/lib/modules/3.16.0-44-generic/vdso/.build-id/d8/
/lib/modules/3.16.0-44-generic/vdso/.build-id/d8/0659b515c98ff34b0728ef0c0093dedf55eb93.debug
/lib/modules/3.16.0-44-generic/vdso/vdso32-int80.so
/lib/modules/3.16.0-44-generic/vdso/vdso32-syscall.so
/lib/modules/3.16.0-44-generic/vdso/vdso32-sysenter.so
/lib/modules/3.16.0-44-generic/vdso/vdso64.so
/lib/modules/3.16.0-44-generic/vdso/vdsox32.so