From 92d897cde2f0c2f9f006630d0461a54c784f83ab Mon Sep 17 00:00:00 2001
From: Corinna Vinschen <corinna@vinschen.de>
Date: Fri, 15 Aug 2003 12:05:08 +0000
Subject: 	* mmap.cc (mmap64): Avoid crash if file size is less than
 requested 	map length.

---
 winsup/cygwin/mmap.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'winsup/cygwin/mmap.cc')

diff --git a/winsup/cygwin/mmap.cc b/winsup/cygwin/mmap.cc
index 7d8809e47..6af4946a7 100644
--- a/winsup/cygwin/mmap.cc
+++ b/winsup/cygwin/mmap.cc
@@ -600,7 +600,7 @@ mmap64 (caddr_t addr, size_t len, int prot, int flags, int fd, _off64_t off)
   }
 
   /* Insert into the list */
-  mmap_record *rec = map_list->add_record (mmap_rec, off, len);
+  mmap_record *rec = map_list->add_record (mmap_rec, off, len > gran_len ? gran_len : len);
   caddr_t ret = rec->get_address () + (off - gran_off);
   syscall_printf ("%x = mmap() succeeded", ret);
   ReleaseResourceLock (LOCK_MMAP_LIST, READ_LOCK | WRITE_LOCK, "mmap");
-- 
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