reputation: Release memory on key add fails

Ensure that memory for the reputation key is released on failed adds.

Contributed by Giuseppe Longo <giuseppe@glongo.it>

Issue: 5748

src/reputation.c

@@ -100,6 +100,7 @@ static void SRepCIDRAddNetblock(SRepCIDRTree *cidr_ctx, char *ip, int cat, uint8
 
         SCLogDebug("adding ipv6 host %s", ip);
         if (SCRadixAddKeyIPV6String(ip, cidr_ctx->srepIPV6_tree[cat], (void *)user_data) == NULL) {
+            SCFree(user_data);
             SCLogWarning("failed to add ipv6 host %s", ip);
         }
 
@@ -115,6 +116,7 @@ static void SRepCIDRAddNetblock(SRepCIDRTree *cidr_ctx, char *ip, int cat, uint8
 
         SCLogDebug("adding ipv4 host %s", ip);
         if (SCRadixAddKeyIPV4String(ip, cidr_ctx->srepIPV4_tree[cat], (void *)user_data) == NULL) {
+            SCFree(user_data);
             SCLogWarning("failed to add ipv4 host %s", ip);
         }
     }