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nrf_securit: cracen: Fix input validation ordering #28636

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Merged
rlubos merged 1 commit into from
May 26, 2026
Merged

nrf_securit: cracen: Fix input validation ordering #28636

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8 changes: 4 additions & 4 deletions subsys/nrf_security/src/drivers/cracen/cracen_sw/src/cracen_sw_cipher.c
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Original file line number Diff line number Diff line change
Expand Up @@ -460,17 +460,17 @@ psa_status_t cracen_cipher_update(cracen_cipher_operation_t *operation, const ui
return PSA_SUCCESS;
}

if (output == NULL || output_size < input_length + operation->unprocessed_input_bytes) {
return PSA_ERROR_BUFFER_TOO_SMALL;
}

if (IS_ENABLED(PSA_NEED_CRACEN_CTR_AES)) {
if (operation->alg == PSA_ALG_CTR) {
return cracen_sw_aes_ctr_update(operation, input, input_length, output,
output_size, output_length);
}
}

if (output == NULL || output_size < input_length + operation->unprocessed_input_bytes) {
return PSA_ERROR_BUFFER_TOO_SMALL;
}

if (IS_ENABLED(PSA_NEED_CRACEN_CBC_NO_PADDING_AES) ||
IS_ENABLED(PSA_NEED_CRACEN_CBC_PKCS7_AES)) {
if (operation->alg == PSA_ALG_CBC_NO_PADDING ||
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