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authorCorinna Vinschen <corinna@vinschen.de>2001-11-05 20:58:22 +0000
committerCorinna Vinschen <corinna@vinschen.de>2001-11-05 20:58:22 +0000
commit910e57ec840e03fcbe945ee197598268ba69ed3f (patch)
treede4636cc13a11d1dc62aaf54051d13fc86ded0ae
parentc7dd4f95118f40d8fcb2f83c11d9419aba5bdef2 (diff)
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* mmap.cc (mmap_record::find_empty): Add input parameter check.
-rw-r--r--winsup/cygwin/ChangeLog4
-rw-r--r--winsup/cygwin/mmap.cc2
2 files changed, 6 insertions, 0 deletions
diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 1949c5a..681b809 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+2001-11-05 Corinna Vinschen <corinna@vinschen.de>
+
+ * mmap.cc (mmap_record::find_empty): Add input parameter check.
+
2001-11-04 Christopher Faylor <cgf@redhat.com>
* dtable.cc (dtable::build_fhandler): Fix debug_printf to avoid SEGV
diff --git a/winsup/cygwin/mmap.cc b/winsup/cygwin/mmap.cc
index ab36a52..884941a 100644
--- a/winsup/cygwin/mmap.cc
+++ b/winsup/cygwin/mmap.cc
@@ -109,6 +109,8 @@ mmap_record::find_empty (DWORD pages)
DWORD mapped_pages = PAGE_CNT (size_to_map_);
DWORD start;
+ if (pages > mapped_pages)
+ return (DWORD)-1;
for (start = 0; start <= mapped_pages - pages; ++start)
if (!MAP_ISSET (start))
{