diff options
| author | Matt Caswell <matt@openssl.org> | 2016-10-19 16:29:01 +0100 |
|---|---|---|
| committer | Matt Caswell <matt@openssl.org> | 2016-11-04 12:09:46 +0000 |
| commit | 708e06c55d9fee5d59e4a4f409d115423ea1fa56 (patch) | |
| tree | a1ca93b1ec744385a98cbffab617e4d33136958a /crypto/hmac | |
| parent | 56a26ce3600cc9f96da0e64b345a25276d9abfc0 (diff) | |
Ensure HMAC_size() handles errors correctly
Reviewed-by: Rich Salz <rsalz@openssl.org>
Diffstat (limited to 'crypto/hmac')
| -rw-r--r-- | crypto/hmac/hmac.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/crypto/hmac/hmac.c b/crypto/hmac/hmac.c index 3374105cbb..a2c9dd9845 100644 --- a/crypto/hmac/hmac.c +++ b/crypto/hmac/hmac.c @@ -118,7 +118,10 @@ int HMAC_Final(HMAC_CTX *ctx, unsigned char *md, unsigned int *len) size_t HMAC_size(const HMAC_CTX *ctx) { - return EVP_MD_size((ctx)->md); + int size = EVP_MD_size((ctx)->md); + if (size < 0) + return 0; + return size; } HMAC_CTX *HMAC_CTX_new(void) |