permissions: fix possible buffer overflow

Fixes Coverity CID #40880
OpenSIPS · Jul 21, 2020 · 8b410a7 · 8b410a7
1 parent bb284f1
commit 8b410a7
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/modules/permissions/parse_config.c b/modules/permissions/parse_config.c
@@ -122,6 +122,10 @@ static int parse_expression(char *str, expression **e, expression **e_exceptions
 		}
 	} else {
 		/* no exception */
+		if (strlen(str) > LINE_LENGTH) {
+			LM_ERR("rule too long [%s]!\n", str);
+			return -1;
+		}
 		strcpy(str2, str);
 		*e_exceptions = NULL;
 	}