commit a87d9e8f89f946a733c756c72bf5ec41e0a738b8
Author: Jakub Jelen <jjelen@redhat.com>
Date:   Wed Apr 14 15:51:27 2021 +0900

    core,emacs,tty,curses: Fix memory leaks, invalid accese, and mistake.
    
    * pinentry/pinentry-curses.c (dialog_create): Free NEW.
    [HAVE_NCURSESW] (dialog_run): Free OLD_CTYPE on error.
    * pinentry/pinentry.c (pinentry_inq_genpin): Free VALUE on error.
    * tty/pinentry-tty.c (tty_cmd_handler): Don't access closed FDs.
    * pinentry/pinentry-emacs.c (set_labels): Fix for ->default_cancel.
    
    --
    
    GnuPG-bug-id: 5384
    Signed-off-by: Jakub Jelen <jjelen@redhat.com>

diff --git a/pinentry/pinentry-curses.c b/pinentry/pinentry-curses.c
index a3fe2e2..1c3008a 100644
--- a/pinentry/pinentry-curses.c
+++ b/pinentry/pinentry-curses.c
@@ -315,6 +315,7 @@ dialog_create (pinentry_t pinentry, dialog_t dialog)
         }								\
       dialog->which = pinentry_utf8_to_local (pinentry->lc_ctype,	\
 					      new ? new : default);	\
+      free (new);							\
       if (!dialog->which)						\
         {								\
 	  err = 1;							\
@@ -873,6 +874,9 @@ dialog_run (pinentry_t pinentry, const char *tty_name, const char *tty_type)
         {
           pinentry->specific_err = gpg_error_from_syserror ();
           pinentry->specific_err_loc = "open_tty_for_read";
+#ifdef HAVE_NCURSESW
+          free (old_ctype);
+#endif
           return confirm_mode? 0 : -1;
         }
       ttyfo = fopen (tty_name, "w");
@@ -883,6 +887,9 @@ dialog_run (pinentry_t pinentry, const char *tty_name, const char *tty_type)
 	  errno = err;
           pinentry->specific_err = gpg_error_from_syserror ();
           pinentry->specific_err_loc = "open_tty_for_write";
+#ifdef HAVE_NCURSESW
+          free (old_ctype);
+#endif
 	  return confirm_mode? 0 : -1;
 	}
       screen = newterm (tty_type, ttyfo, ttyfi);
@@ -897,6 +904,9 @@ dialog_run (pinentry_t pinentry, const char *tty_name, const char *tty_type)
               errno = ENOTTY;
               pinentry->specific_err = gpg_error_from_syserror ();
               pinentry->specific_err_loc = "isatty";
+#ifdef HAVE_NCURSESW
+              free (old_ctype);
+#endif
               return confirm_mode? 0 : -1;
             }
 	  init_screen = 1;
diff --git a/pinentry/pinentry-emacs.c b/pinentry/pinentry-emacs.c
index 16ae1c2..9685b67 100644
--- a/pinentry/pinentry-emacs.c
+++ b/pinentry/pinentry-emacs.c
@@ -498,7 +498,7 @@ set_labels (pinentry_t pe)
     set_label (pe, "SETOK", pe->default_ok);
   if (pe->cancel)
     set_label (pe, "SETCANCEL", pe->cancel);
-  else if (pe->default_ok)
+  else if (pe->default_cancel)
     set_label (pe, "SETCANCEL", pe->default_cancel);
   if (pe->notok)
     set_label (pe, "SETNOTOK", pe->notok);
diff --git a/pinentry/pinentry.c b/pinentry/pinentry.c
index ef81f12..26ec77a 100644
--- a/pinentry/pinentry.c
+++ b/pinentry/pinentry.c
@@ -656,6 +656,7 @@ pinentry_inq_genpin (pinentry_t pin)
           if (rc)
             {
               fprintf (stderr, "ASSUAN READ LINE failed: rc=%d\n", rc);
+              free (value);
               return 0;
             }
         }
diff --git a/tty/pinentry-tty.c b/tty/pinentry-tty.c
index 403dd60..4a2b67f 100644
--- a/tty/pinentry-tty.c
+++ b/tty/pinentry-tty.c
@@ -559,7 +559,7 @@ tty_cmd_handler (pinentry_t pinentry)
         }
     }
 
-  if (terminal_save (fileno (ttyfi)) < 0)
+  if (!rc && terminal_save (fileno (ttyfi)) < 0)
     rc = -1;
 
   if (! rc)