diff options
| author | Tomas Mraz <tomas@openssl.org> | 2021-01-22 13:59:54 +0100 |
|---|---|---|
| committer | Tomas Mraz <tomas@openssl.org> | 2021-01-26 15:26:49 +0100 |
| commit | 82a46200911f2bb1af00b6921c0db9738825aa76 (patch) | |
| tree | 7f649219bfd9d88248bcb035b25024c2ab524da6 /crypto/ec | |
| parent | f468e2f95160defb7ab7461f8217697add762b90 (diff) | |
Add checks for NULL return from EC_KEY_get0_group()
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/13139)
Diffstat (limited to 'crypto/ec')
| -rw-r--r-- | crypto/ec/ec_pmeth.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/crypto/ec/ec_pmeth.c b/crypto/ec/ec_pmeth.c index cd1632dc9a..084633dcdc 100644 --- a/crypto/ec/ec_pmeth.c +++ b/crypto/ec/ec_pmeth.c @@ -172,6 +172,9 @@ static int pkey_ec_derive(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *keylen) if (!key) { const EC_GROUP *group; group = EC_KEY_get0_group(eckey); + + if (group == NULL) + return 0; *keylen = (EC_GROUP_get_degree(group) + 7) / 8; return 1; } |