Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/7767)
Don't pass a pointer to uninitialized processed value for BIO_CB_READ and BIO_CB_WRITE Check the correct cmd code in BIO_callback_ctrl Reviewed-by: Rich Salz <rsalz@openssl.org> (Merged from https://github.com/openssl/openssl/pull/5516)