diff options
Diffstat (limited to 'lib/libcrypto/ec/ec_lib.c')
| -rw-r--r-- | lib/libcrypto/ec/ec_lib.c | 33 |
1 files changed, 20 insertions, 13 deletions
diff --git a/lib/libcrypto/ec/ec_lib.c b/lib/libcrypto/ec/ec_lib.c index 47ccc614d1a..8cf0f2241ee 100644 --- a/lib/libcrypto/ec/ec_lib.c +++ b/lib/libcrypto/ec/ec_lib.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ec_lib.c,v 1.15 2014/07/12 16:03:37 miod Exp $ */ +/* $OpenBSD: ec_lib.c,v 1.16 2015/02/09 15:49:22 jsing Exp $ */ /* * Originally written by Bodo Moeller for the OpenSSL project. */ @@ -497,18 +497,19 @@ EC_GROUP_cmp(const EC_GROUP * a, const EC_GROUP * b, BN_CTX * ctx) return -1; BN_CTX_start(ctx); - a1 = BN_CTX_get(ctx); - a2 = BN_CTX_get(ctx); - a3 = BN_CTX_get(ctx); - b1 = BN_CTX_get(ctx); - b2 = BN_CTX_get(ctx); - b3 = BN_CTX_get(ctx); - if (!b3) { - BN_CTX_end(ctx); - if (ctx_new) - BN_CTX_free(ctx); - return -1; - } + if ((a1 = BN_CTX_get(ctx)) == NULL) + goto err; + if ((a2 = BN_CTX_get(ctx)) == NULL) + goto err; + if ((a3 = BN_CTX_get(ctx)) == NULL) + goto err; + if ((b1 = BN_CTX_get(ctx)) == NULL) + goto err; + if ((b2 = BN_CTX_get(ctx)) == NULL) + goto err; + if ((b3 = BN_CTX_get(ctx)) == NULL) + goto err; + /* * XXX This approach assumes that the external representation of * curves over the same field type is the same. @@ -544,6 +545,12 @@ EC_GROUP_cmp(const EC_GROUP * a, const EC_GROUP * b, BN_CTX * ctx) BN_CTX_free(ctx); return r; + +err: + BN_CTX_end(ctx); + if (ctx_new) + BN_CTX_free(ctx); + return -1; } |