/lib/modules/3.19.0-43-generic/vdso/ is in linux-image-3.19.0-43-generic 3.19.0-43.49~14.04.1.
This file is owned by root:root, with mode 0o755.
..
/lib/modules/3.19.0-43-generic/vdso/.build-id/
/lib/modules/3.19.0-43-generic/vdso/.build-id/1c/
/lib/modules/3.19.0-43-generic/vdso/.build-id/1c/9cbfbd1bb0351b6f3f9df4fec6a6ffabceb455.debug
/lib/modules/3.19.0-43-generic/vdso/.build-id/1f/
/lib/modules/3.19.0-43-generic/vdso/.build-id/1f/841b2371fc3cb5fa718dd9d4d57e138a3ae50e.debug
/lib/modules/3.19.0-43-generic/vdso/.build-id/32/
/lib/modules/3.19.0-43-generic/vdso/.build-id/32/9fa6b3f72db1c01ef82ee77472180464b9667b.debug
/lib/modules/3.19.0-43-generic/vdso/.build-id/33/
/lib/modules/3.19.0-43-generic/vdso/.build-id/33/5fd09648c4a7567d5f7ab230592b7a14bcc496.debug
/lib/modules/3.19.0-43-generic/vdso/.build-id/7c/
/lib/modules/3.19.0-43-generic/vdso/.build-id/7c/9b85a711cedb8809f7bfc1996d9c2b2cc83496.debug
/lib/modules/3.19.0-43-generic/vdso/vdso32-int80.so
/lib/modules/3.19.0-43-generic/vdso/vdso32-syscall.so
/lib/modules/3.19.0-43-generic/vdso/vdso32-sysenter.so
/lib/modules/3.19.0-43-generic/vdso/vdso64.so
/lib/modules/3.19.0-43-generic/vdso/vdsox32.so