From: Guus Sliepen <guus@tinc-vpn.org>
Date: Wed, 22 Jun 2016 15:42:25 +0000 (+0200)
Subject: Check return value of RSA_generate_key_ex().
X-Git-Tag: release-1.1pre15~66
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=9b148fd844587fbf956e28f57e4bd39a11edc07f;p=oweals%2Ftinc.git

Check return value of RSA_generate_key_ex().
---

diff --git a/src/openssl/rsagen.c b/src/openssl/rsagen.c
index 4a47619..cdd07f7 100644
--- a/src/openssl/rsagen.c
+++ b/src/openssl/rsagen.c
@@ -89,11 +89,17 @@ rsa_t *rsa_generate(size_t bits, unsigned long exponent) {
 	BN_set_word(bn_e, exponent);
 	BN_GENCB_set(cb, indicator, NULL);
 
-	RSA_generate_key_ex(rsa, bits, bn_e, cb);
+	int result = RSA_generate_key_ex(rsa, bits, bn_e, cb);
 
 	BN_GENCB_free(cb);
 	BN_free(bn_e);
 
+	if(!result) {
+		fprintf(stderr, "Error during key generation!\n");
+		RSA_free(rsa);
+		return NULL;
+	}
+
 	return rsa;
 }