/lib/modules/3.19.0-68-generic/vdso/ is in linux-image-3.19.0-68-generic 3.19.0-68.76~14.04.1.
This file is owned by root:root, with mode 0o755.
..
/lib/modules/3.19.0-68-generic/vdso/.build-id/
/lib/modules/3.19.0-68-generic/vdso/.build-id/03/
/lib/modules/3.19.0-68-generic/vdso/.build-id/03/93962119c78124882c7826ef0e603e21cf5783.debug
/lib/modules/3.19.0-68-generic/vdso/.build-id/66/
/lib/modules/3.19.0-68-generic/vdso/.build-id/66/0ac9ef5b63bf3abbf7c002b69334a3f575aa28.debug
/lib/modules/3.19.0-68-generic/vdso/.build-id/74/
/lib/modules/3.19.0-68-generic/vdso/.build-id/74/3069db49047065f1f95f4fbbfa0ba087c33375.debug
/lib/modules/3.19.0-68-generic/vdso/.build-id/b9/
/lib/modules/3.19.0-68-generic/vdso/.build-id/b9/70628700c8ac977306da3c0f234829f306a7d5.debug
/lib/modules/3.19.0-68-generic/vdso/.build-id/d1/
/lib/modules/3.19.0-68-generic/vdso/.build-id/d1/5849adc011883e693b5b65c34e2ed83f20d162.debug
/lib/modules/3.19.0-68-generic/vdso/vdso32-int80.so
/lib/modules/3.19.0-68-generic/vdso/vdso32-syscall.so
/lib/modules/3.19.0-68-generic/vdso/vdso32-sysenter.so
/lib/modules/3.19.0-68-generic/vdso/vdso64.so
/lib/modules/3.19.0-68-generic/vdso/vdsox32.so