Coverity found the following issues:

Coverity found the following issues:

1591471
1591474
1591476

which pertain to memory leaks in the conf_mod code

If an error is encountered after the module STACK_OF is duplicated or
created in the new_modules variable, we need to remember to free it in
the error path

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
Reviewed-by: Paul Dale <ppzgs1@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/24337)