/lib/modules/3.19.0-77-generic/vdso/ is in linux-image-3.19.0-77-generic 3.19.0-77.85~14.04.1.
This file is owned by root:root, with mode 0o755.
..
/lib/modules/3.19.0-77-generic/vdso/.build-id/
/lib/modules/3.19.0-77-generic/vdso/.build-id/2e/
/lib/modules/3.19.0-77-generic/vdso/.build-id/2e/1e8fe517472f8381e1ab8223ff3c3ff31288ba.debug
/lib/modules/3.19.0-77-generic/vdso/.build-id/65/
/lib/modules/3.19.0-77-generic/vdso/.build-id/65/b59ad79d0336a4b14a0f80d7f9e66b44cd01e4.debug
/lib/modules/3.19.0-77-generic/vdso/.build-id/a1/
/lib/modules/3.19.0-77-generic/vdso/.build-id/a1/41b3357926ef056ec7d95c5463a2759d57f3c9.debug
/lib/modules/3.19.0-77-generic/vdso/.build-id/c8/
/lib/modules/3.19.0-77-generic/vdso/.build-id/c8/baa6b4e8dc1972b2842f27905a40a38d948a13.debug
/lib/modules/3.19.0-77-generic/vdso/.build-id/df/
/lib/modules/3.19.0-77-generic/vdso/.build-id/df/978bc6fe383be3f9de7629d2f799ee9fec145a.debug
/lib/modules/3.19.0-77-generic/vdso/vdso32-int80.so
/lib/modules/3.19.0-77-generic/vdso/vdso32-syscall.so
/lib/modules/3.19.0-77-generic/vdso/vdso32-sysenter.so
/lib/modules/3.19.0-77-generic/vdso/vdso64.so
/lib/modules/3.19.0-77-generic/vdso/vdsox32.so