From: Petr Machata <pmachata@redhat.com>
Date: Mon, 8 Jun 2009 13:46:16 +0000 (+0200)
Subject: Fix a bug in offset checking
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=77abb31cb8d55980ef92260917a7ecdd228b1a44;p=thirdparty%2Felfutils.git

Fix a bug in offset checking
---

diff --git a/libdw/libdwP.h b/libdw/libdwP.h
index 8f180ccf3..97a2e042f 100644
--- a/libdw/libdwP.h
+++ b/libdw/libdwP.h
@@ -483,7 +483,7 @@ __libdw_in_section (Dwarf *dbg, int sec_index,
   if (data == NULL)
     return false;
   if (unlikely (addr < data->d_buf)
-      || unlikely (addr >= data->d_buf + data->d_size - size))
+      || unlikely (data->d_size - (addr - data->d_buf) < size))
     {
       __libdw_seterrno (DWARF_E_INVALID_OFFSET);
       return false;