1 files changed, 2 insertions, 0 deletions

diff --git a/core/net_crypto.c b/core/net_crypto.c
index 7fdd035f..6ced942b 100644
--- a/core/net_crypto.c
+++ b/core/net_crypto.c
@@ -406,6 +406,8 @@ static int getcryptconnection_id(uint8_t *public_key)
    return -1 if realloc fails */
 int realloc_cryptoconnection(uint32_t num)
 {
+    if (num * sizeof(Crypto_Connection) == 0) return -1;
+
     Crypto_Connection *newcrypto_connections = realloc(crypto_connections, num * sizeof(Crypto_Connection));
 
     if (newcrypto_connections == NULL && num != 0)