diff options
Diffstat (limited to 'crypto/param_build_set.c')
| -rw-r--r-- | crypto/param_build_set.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/crypto/param_build_set.c b/crypto/param_build_set.c index db49683ed976..063e35d33b90 100644 --- a/crypto/param_build_set.c +++ b/crypto/param_build_set.c @@ -1,5 +1,5 @@ /* - * Copyright 2020-2022 The OpenSSL Project Authors. All Rights Reserved. + * Copyright 2020-2026 The OpenSSL Project Authors. All Rights Reserved. * * Licensed under the Apache License 2.0 (the "License"). You may not use * this file except in compliance with the License. You can obtain a copy @@ -73,6 +73,11 @@ int ossl_param_build_set_bn_pad(OSSL_PARAM_BLD *bld, OSSL_PARAM *p, return OSSL_PARAM_BLD_push_BN_pad(bld, key, bn, sz); p = OSSL_PARAM_locate(p, key); if (p != NULL) { + /* Size probe: NULL data means "report the required size". */ + if (p->data == NULL) { + p->return_size = sz; + return 1; + } if (sz > p->data_size) { ERR_raise(ERR_LIB_CRYPTO, CRYPTO_R_TOO_SMALL_BUFFER); return 0; |