/lib/modules/3.19.0-49-generic/vdso/ is in linux-image-3.19.0-49-generic 3.19.0-49.55~14.04.1.
This file is owned by root:root, with mode 0o755.
..
/lib/modules/3.19.0-49-generic/vdso/.build-id/
/lib/modules/3.19.0-49-generic/vdso/.build-id/30/
/lib/modules/3.19.0-49-generic/vdso/.build-id/30/0a104f95c3afad2a9e22e19f1e6482e44d02c8.debug
/lib/modules/3.19.0-49-generic/vdso/.build-id/bd/
/lib/modules/3.19.0-49-generic/vdso/.build-id/bd/3be3710e37c8678f035b516346c5e37b10c936.debug
/lib/modules/3.19.0-49-generic/vdso/.build-id/d5/
/lib/modules/3.19.0-49-generic/vdso/.build-id/d5/bf9ccd6068bd3248cfac6bcb519115d7683665.debug
/lib/modules/3.19.0-49-generic/vdso/.build-id/d8/
/lib/modules/3.19.0-49-generic/vdso/.build-id/d8/2041791169526cc0573524d3d5df03be3b583f.debug
/lib/modules/3.19.0-49-generic/vdso/.build-id/f6/
/lib/modules/3.19.0-49-generic/vdso/.build-id/f6/338f5110e98c4eab2fac9860ad53e585e566f0.debug
/lib/modules/3.19.0-49-generic/vdso/vdso32-int80.so
/lib/modules/3.19.0-49-generic/vdso/vdso32-syscall.so
/lib/modules/3.19.0-49-generic/vdso/vdso32-sysenter.so
/lib/modules/3.19.0-49-generic/vdso/vdso64.so
/lib/modules/3.19.0-49-generic/vdso/vdsox32.so