/lib/modules/3.16.0-55-generic/vdso/ is in linux-image-3.16.0-55-generic 3.16.0-55.74~14.04.1.
This file is owned by root:root, with mode 0o755.
..
/lib/modules/3.16.0-55-generic/vdso/.build-id/
/lib/modules/3.16.0-55-generic/vdso/.build-id/09/
/lib/modules/3.16.0-55-generic/vdso/.build-id/09/36425d81c5de9092b981d6439934bcae1d33a4.debug
/lib/modules/3.16.0-55-generic/vdso/.build-id/15/
/lib/modules/3.16.0-55-generic/vdso/.build-id/15/5c2c18039cd21ee8818a7979ff49a7e370fd9a.debug
/lib/modules/3.16.0-55-generic/vdso/.build-id/26/
/lib/modules/3.16.0-55-generic/vdso/.build-id/26/574115636aa14099a79a0e671dac27dc253c47.debug
/lib/modules/3.16.0-55-generic/vdso/.build-id/7a/
/lib/modules/3.16.0-55-generic/vdso/.build-id/7a/25830357ef3a99a648ceb7579b8b67d385e37d.debug
/lib/modules/3.16.0-55-generic/vdso/.build-id/a4/
/lib/modules/3.16.0-55-generic/vdso/.build-id/a4/f40c690446dac12be4d1cccd2b18392d973299.debug
/lib/modules/3.16.0-55-generic/vdso/vdso32-int80.so
/lib/modules/3.16.0-55-generic/vdso/vdso32-syscall.so
/lib/modules/3.16.0-55-generic/vdso/vdso32-sysenter.so
/lib/modules/3.16.0-55-generic/vdso/vdso64.so
/lib/modules/3.16.0-55-generic/vdso/vdsox32.so