/lib/modules/3.19.0-79-generic/vdso/ is in linux-image-3.19.0-79-generic 3.19.0-79.87~14.04.1.
This file is owned by root:root, with mode 0o755.
..
/lib/modules/3.19.0-79-generic/vdso/.build-id/
/lib/modules/3.19.0-79-generic/vdso/.build-id/30/
/lib/modules/3.19.0-79-generic/vdso/.build-id/30/bee88387471ac38119d0f977f3096cd63e4bc0.debug
/lib/modules/3.19.0-79-generic/vdso/.build-id/3d/
/lib/modules/3.19.0-79-generic/vdso/.build-id/3d/df90d91b7c8e66a55eba6ba4010d91a23e5204.debug
/lib/modules/3.19.0-79-generic/vdso/.build-id/4a/
/lib/modules/3.19.0-79-generic/vdso/.build-id/4a/92ea7a76b03887ae97d1cfda872453a56b541a.debug
/lib/modules/3.19.0-79-generic/vdso/.build-id/80/
/lib/modules/3.19.0-79-generic/vdso/.build-id/80/e5f7f0d880570734b000b3ea343394a80626d3.debug
/lib/modules/3.19.0-79-generic/vdso/.build-id/88/
/lib/modules/3.19.0-79-generic/vdso/.build-id/88/35afed6619de1fb55a1078e9495bcc51cc40c6.debug
/lib/modules/3.19.0-79-generic/vdso/vdso32-int80.so
/lib/modules/3.19.0-79-generic/vdso/vdso32-syscall.so
/lib/modules/3.19.0-79-generic/vdso/vdso32-sysenter.so
/lib/modules/3.19.0-79-generic/vdso/vdso64.so
/lib/modules/3.19.0-79-generic/vdso/vdsox32.so