…oth RSA Paths

… Re-Init

…-Test Error Messages

F-1880: Unsigned word32 dec_len Silently Wraps Negative wc_RsaSSL_Verify Error Codes, Returning Wrong Errno on RSA Signature Verification Failure
F-1881: word32 sig_len Silently Wraps Negative wc_RsaSSL_Sign Error in Self-Test Functions, Bypassing <= 0 Guard
F-1882: word32 priv_len / pub_len Silently Wrap Negative wc_RsaKeyToDer / wc_RsaKeyToPublicDer Errors Across Three RSA Self-Test Functions

…ock encrypt path

also ForceZeros various other potentially sensitive allocations before freeing them, and uses unconditional free() per current libwolfssl best practice.

…or Code to Kernel LKCAPI

…hash_len

in AesGcmCrypt_1() and AesCcmCrypt_1(), check for overflow on assoclen+cryptlen in both encrypt and decrypt modes;

in linuxkm_test_kpp_driver(), return MEMORY_E, not -ENOMEM;

in km_direct_rsa_dec(), only update req->dst_len for -EOVERFLOW, not for -EINVAL.

F-1428: Missing ForceZero on sg_buf Containing Decrypted Plaintext in AES-GCM Non-Stream Path
F-3293: AES-CCM Non-Contiguous SG Path Missing ForceZero on sg_buf Containing Decrypted Plaintext

…ating skcipher_walk Error

F-1433: AES CBC/CFB Self-Test Functions Silently Continue After enc2/dec2 Allocation Failure
F-1434: linuxkm_test_aesgcm Silently Returns Success on Kernel Crypto Allocation Failure

… in km_hmac_init Error Path

…ith Plain Assignment Instead of wc_ForceZero

…uffer Overflow