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| author | slontis <shane.lontis@oracle.com> | 2022-12-01 02:34:14 +0100 |
|---|---|---|
| committer | Tomas Mraz <tomas@openssl.org> | 2022-12-16 18:57:42 +0100 |
| commit | 5e42118de2c8001b3b5fa0cae138950d5b2e1cf1 (patch) | |
| tree | 4ee4dc8ce572e8c2eb67741813c8568fad8522e0 /crypto/deterministic_nonce.c | |
| parent | Update HMAC() documentation. (diff) | |
| download | openssl-5e42118de2c8001b3b5fa0cae138950d5b2e1cf1.tar.xz openssl-5e42118de2c8001b3b5fa0cae138950d5b2e1cf1.zip | |
Address coverity issue CID 1517105
The code path for this resource leak indicates that this is a false
positive (if you look at the callers).
Rather than ignoring the warning an extra check has been added, in case
future callers do the wrong thing.
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/19799)
Diffstat (limited to 'crypto/deterministic_nonce.c')
| -rw-r--r-- | crypto/deterministic_nonce.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/crypto/deterministic_nonce.c b/crypto/deterministic_nonce.c index cd28cce513..6b78777b42 100644 --- a/crypto/deterministic_nonce.c +++ b/crypto/deterministic_nonce.c @@ -158,9 +158,12 @@ int ossl_gen_deterministic_nonce_rfc6979(BIGNUM *out, const BIGNUM *q, unsigned char *entropyx = NULL, *nonceh = NULL, *T = NULL; size_t allocsz = 0; + if (out == NULL) + return 0; + qlen_bits = BN_num_bits(q); if (qlen_bits == 0) - goto end; + return 0; /* Note rlen used here is in bytes since the input values are byte arrays */ rlen = (qlen_bits + 7) / 8; @@ -169,7 +172,7 @@ int ossl_gen_deterministic_nonce_rfc6979(BIGNUM *out, const BIGNUM *q, /* Use a single alloc for the buffers T, nonceh and entropyx */ T = (unsigned char *)OPENSSL_zalloc(allocsz); if (T == NULL) - goto end; + return 0; nonceh = T + rlen; entropyx = nonceh + rlen; |