Bugfix: initiate_stratum: Ensure extranonce2 size is not negative (wh…

…ich could lead to exploits later as too little memory gets allocated) Thanks to Mick Ayzenberg <mick@dejavusecurity.com> for finding this!
sgminer-dev · Jun 5, 2014 · bac5831 · bac5831
1 parent f0e47ec
commit bac5831
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/util.c b/util.c
@@ -2505,7 +2505,8 @@ bool initiate_stratum(struct pool *pool)
 		goto out;
 	}
 	n2size = json_integer_value(json_array_get(res_val, 2));
-	if (!n2size) {
+	if (n2size < 1)
+	{
 		applog(LOG_INFO, "Failed to get n2size in initiate_stratum");
 		free(sessionid);
 		free(nonce1);