diff -pru ddrescue-1.27-rc1.orig/loggers.cc ddrescue-1.27-rc1/loggers.cc
--- ddrescue-1.27-rc1.orig/loggers.cc	2022-12-16 00:10:51.000000000 +0100
+++ ddrescue-1.27-rc1/loggers.cc	2022-12-22 18:41:57.768074400 +0100
@@ -33,7 +33,7 @@ namespace {
 
 const char * format_time_dhms( const long long t )
   {
-  static char buf[32];
+  static char buf[33];
   const int s = t % 60;
   const int m = ( t / 60 ) % 60;
   const int h = ( t / 3600 ) % 24;
diff -pru ddrescue-1.27-rc1.orig/main.cc ddrescue-1.27-rc1/main.cc
--- ddrescue-1.27-rc1.orig/main.cc	2022-12-16 18:12:15.000000000 +0100
+++ ddrescue-1.27-rc1/main.cc	2022-12-22 18:47:15.769177000 +0100
@@ -183,7 +183,7 @@ Rational parse_rational_time( const char
       case 'm': r *= 60; break;
       case 's':
       case  0 : break;
-      case ',': if( comma ) break;
+      case ',': if( comma ) break; // fallthrough
       default :
         show_option_error( arg, "Bad unit in time interval argument of",
                            option_name ); std::exit( 1 );