diff options
| -rw-r--r-- | src/undo.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/undo.c b/src/undo.c index 0eca97df566..7a6ba37d0f8 100644 --- a/src/undo.c +++ b/src/undo.c @@ -548,6 +548,8 @@ Return what remains of the list. */) beg = Fcar (cdr); end = Fcdr (cdr); + if (XINT (beg) < BEGV || XINT (end) > ZV) + error ("Changes to be undone are outside visible portion of buffer"); Fput_text_property (beg, end, prop, val, Qnil); } else if (INTEGERP (car) && INTEGERP (cdr)) |