/lib/modules/3.16.0-43-generic/vdso/ is in linux-image-3.16.0-43-generic 3.16.0-43.58~14.04.1.
This file is owned by root:root, with mode 0o755.
..
/lib/modules/3.16.0-43-generic/vdso/.build-id/
/lib/modules/3.16.0-43-generic/vdso/.build-id/2d/
/lib/modules/3.16.0-43-generic/vdso/.build-id/2d/2290087bb3a92666772ea712082a1fa6ef1e28.debug
/lib/modules/3.16.0-43-generic/vdso/.build-id/43/
/lib/modules/3.16.0-43-generic/vdso/.build-id/43/2e0c4c6e078f0150eadfd5941c19855cac203e.debug
/lib/modules/3.16.0-43-generic/vdso/.build-id/4c/
/lib/modules/3.16.0-43-generic/vdso/.build-id/4c/f6105dd1293282f55d719bac62727178dcffe6.debug
/lib/modules/3.16.0-43-generic/vdso/.build-id/c8/
/lib/modules/3.16.0-43-generic/vdso/.build-id/c8/705bd6f22a0bb0ae155fafd1fb932cc8f67642.debug
/lib/modules/3.16.0-43-generic/vdso/.build-id/da/
/lib/modules/3.16.0-43-generic/vdso/.build-id/da/4ba2ce3a92f8f7cf07a8dc6318b2ccd18d6ab7.debug
/lib/modules/3.16.0-43-generic/vdso/vdso32-int80.so
/lib/modules/3.16.0-43-generic/vdso/vdso32-syscall.so
/lib/modules/3.16.0-43-generic/vdso/vdso32-sysenter.so
/lib/modules/3.16.0-43-generic/vdso/vdso64.so
/lib/modules/3.16.0-43-generic/vdso/vdsox32.so