/lib/modules/4.2.0-19-generic/vdso/ is in linux-image-4.2.0-19-generic 4.2.0-19.23~14.04.1.
This file is owned by root:root, with mode 0o755.
..
/lib/modules/4.2.0-19-generic/vdso/.build-id/
/lib/modules/4.2.0-19-generic/vdso/.build-id/0f/
/lib/modules/4.2.0-19-generic/vdso/.build-id/0f/bb17854bb703934667cdf0bc03ec70aabf5974.debug
/lib/modules/4.2.0-19-generic/vdso/.build-id/8b/
/lib/modules/4.2.0-19-generic/vdso/.build-id/8b/5034df793eb123bbdfa0af53fcce05775190ed.debug
/lib/modules/4.2.0-19-generic/vdso/.build-id/a6/
/lib/modules/4.2.0-19-generic/vdso/.build-id/a6/7cf2b7c9190c3fc7d3cdbcf70c70b989dd93c8.debug
/lib/modules/4.2.0-19-generic/vdso/.build-id/ca/
/lib/modules/4.2.0-19-generic/vdso/.build-id/ca/45dc2558a08100738713a0aabcd1be263dfcd7.debug
/lib/modules/4.2.0-19-generic/vdso/.build-id/db/
/lib/modules/4.2.0-19-generic/vdso/.build-id/db/a32ea90c5061cc2ea3295e238869754eefd226.debug
/lib/modules/4.2.0-19-generic/vdso/vdso32-int80.so
/lib/modules/4.2.0-19-generic/vdso/vdso32-syscall.so
/lib/modules/4.2.0-19-generic/vdso/vdso32-sysenter.so
/lib/modules/4.2.0-19-generic/vdso/vdso64.so
/lib/modules/4.2.0-19-generic/vdso/vdsox32.so