CVE-2025-9231: Openssl Sm2 Non Constant Time Inversioncve-2025-9231-openssl-sm2-non-constant-time-inversion
The SM2 modular inversion function `ecp_sm2p256_inv_mod_ord` is not implemented in a constant-time manner on 64-bit ARM platforms, creating a timing side-channel (CVE-2025-9231). The patch replaces this custom implementation with 0 (NULL) to fall back to a safe, constant-time inversion algorithm.