From: Glenn Morris <rgm@gnu.org>
Date: Tue, 7 May 2013 19:15:08 +0000 (-0400)
Subject: * src/lread.c (readchar): Don't read from a dead buffer.  (Bug#14280)
X-Git-Tag: emacs-24.3.90~173^2^2~42^2~45^2~387^2~2026^2~260
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=15acfe419fe1ca82c0a806c600a7e6d000cd56a5;p=emacs.git

* src/lread.c (readchar): Don't read from a dead buffer.  (Bug#14280)
---

diff --git a/src/ChangeLog b/src/ChangeLog
index 4b71eed9c21..cfa10f7bfb2 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,7 @@
+2013-05-07  Glenn Morris  <rgm@gnu.org>
+
+	* lread.c (readchar): Don't read from a dead buffer.  (Bug#14280)
+
 2013-05-07  Jan Djärv  <jan.h.d@swipnet.se>
 
 	* xfns.c: Move misplaced ifndef USE_GTK from previous checkin.
diff --git a/src/lread.c b/src/lread.c
index 1a8a57e57a7..272f252cf7b 100644
--- a/src/lread.c
+++ b/src/lread.c
@@ -201,6 +201,9 @@ readchar (Lisp_Object readcharfun, bool *multibyte)
 
       ptrdiff_t pt_byte = BUF_PT_BYTE (inbuffer);
 
+      if (! BUFFER_LIVE_P (inbuffer))
+	return -1;
+
       if (pt_byte >= BUF_ZV_BYTE (inbuffer))
 	return -1;