/lib/modules/4.2.0-21-lowlatency/vdso/ is in linux-image-4.2.0-21-lowlatency 4.2.0-21.25~14.04.1.
This file is owned by root:root, with mode 0o755.
..
/lib/modules/4.2.0-21-lowlatency/vdso/.build-id/
/lib/modules/4.2.0-21-lowlatency/vdso/.build-id/78/
/lib/modules/4.2.0-21-lowlatency/vdso/.build-id/78/fcf3fc6fb63d422bd0885946e835e43a4b99b7.debug
/lib/modules/4.2.0-21-lowlatency/vdso/.build-id/82/
/lib/modules/4.2.0-21-lowlatency/vdso/.build-id/82/a0b3e91a312a9bab4b3b1f3016f07c37611d4f.debug
/lib/modules/4.2.0-21-lowlatency/vdso/.build-id/b1/
/lib/modules/4.2.0-21-lowlatency/vdso/.build-id/b1/02b05808396c820a8eca745c5ef90bae2f898e.debug
/lib/modules/4.2.0-21-lowlatency/vdso/.build-id/c4/
/lib/modules/4.2.0-21-lowlatency/vdso/.build-id/c4/7a2e8c22be2858235d4ca8f509b8728adf49c8.debug
/lib/modules/4.2.0-21-lowlatency/vdso/.build-id/f5/
/lib/modules/4.2.0-21-lowlatency/vdso/.build-id/f5/f0f9f53d1e027fecba8da61c6228aa231b4071.debug
/lib/modules/4.2.0-21-lowlatency/vdso/vdso32-int80.so
/lib/modules/4.2.0-21-lowlatency/vdso/vdso32-syscall.so
/lib/modules/4.2.0-21-lowlatency/vdso/vdso32-sysenter.so
/lib/modules/4.2.0-21-lowlatency/vdso/vdso64.so
/lib/modules/4.2.0-21-lowlatency/vdso/vdsox32.so