/lib/modules/3.19.0-78-generic/vdso/ is in linux-image-3.19.0-78-generic 3.19.0-78.86~14.04.1.
This file is owned by root:root, with mode 0o755.
..
/lib/modules/3.19.0-78-generic/vdso/.build-id/
/lib/modules/3.19.0-78-generic/vdso/.build-id/0e/
/lib/modules/3.19.0-78-generic/vdso/.build-id/0e/312024359ef7eadf8fe499118328dc332e77ce.debug
/lib/modules/3.19.0-78-generic/vdso/.build-id/0e/9980d4e0d44e8fc825078ca36f515af0ee0373.debug
/lib/modules/3.19.0-78-generic/vdso/.build-id/1d/
/lib/modules/3.19.0-78-generic/vdso/.build-id/1d/ef7c99238da2030cfb552e4d43566e0ed6294b.debug
/lib/modules/3.19.0-78-generic/vdso/.build-id/27/
/lib/modules/3.19.0-78-generic/vdso/.build-id/27/223a6f5ee97ee82cc1d34e1614df5c43a1b2f6.debug
/lib/modules/3.19.0-78-generic/vdso/.build-id/99/
/lib/modules/3.19.0-78-generic/vdso/.build-id/99/6d02fdb7f18d88f752c4b3cf7c45bb91ab5ebf.debug
/lib/modules/3.19.0-78-generic/vdso/vdso32-int80.so
/lib/modules/3.19.0-78-generic/vdso/vdso32-syscall.so
/lib/modules/3.19.0-78-generic/vdso/vdso32-sysenter.so
/lib/modules/3.19.0-78-generic/vdso/vdso64.so
/lib/modules/3.19.0-78-generic/vdso/vdsox32.so