Man pages matching name vdso in section 7:

vdso.7.en	debian 10 / manpages
vdso.7.ja	debian 10 / manpages-ja
vdso.7.en	debian 11 / manpages
vdso.7.fr	debian 11 / manpages-fr
vdso.7.ja	debian 11 / manpages-ja
vdso.7.en	debian 12 / manpages
vdso.7.fr	debian 12 / manpages-fr
vdso.7.ja	debian 12 / manpages-ja
vdso.7.ru	debian 12 / manpages-ru