[Bug libstdc++/105857] codecvt::do_length causes unexpected buffer overflow

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105857

--- Comment #15 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Fixed on trunk, but this code has been present since 2003 so I want to backport
it to all active branches.