commit 7211ae501eb0de1044983f2dfb00091a58fbd66c
Author: Alan Modra <amodra@gmail.com>
Date:   Tue Jun 27 09:45:04 2017 +0930

    More fixes for bfd_get_section_contents change
    
    	PR binutils/21665
    	* libbfd.c (_bfd_generic_get_section_contents): Delete abort.
    	Use unsigned file pointer type, and remove cast.
    	* libbfd.c (_bfd_generic_get_section_contents_in_window): Likewise.
    	Add "count", not "sz".

Upstream-Status: Backport

CVE: CVE-2017-9955
Signed-off-by: Thiruvadi Rajaraman <trajaraman@mvista.com>

Index: git/bfd/libbfd.c
===================================================================
--- git.orig/bfd/libbfd.c	2017-09-21 18:04:47.316362760 +0530
+++ git/bfd/libbfd.c	2017-09-21 18:04:47.300362638 +0530
@@ -780,7 +780,7 @@
 				   bfd_size_type count)
 {
   bfd_size_type sz;
-  file_ptr filesz;
+  ufile_ptr filesz;
   if (count == 0)
     return TRUE;
 
@@ -803,14 +803,9 @@
   else
     sz = section->size;
   filesz = bfd_get_file_size (abfd);
-  if (filesz < 0)
-    {
-      /* This should never happen.  */
-      abort ();
-    }
   if (offset + count < count
       || offset + count > sz
-      || (section->filepos + offset + count) > (bfd_size_type) filesz)
+      || section->filepos + offset + count > filesz)
     {
       bfd_set_error (bfd_error_invalid_operation);
       return FALSE;
@@ -833,7 +828,7 @@
 {
 #ifdef USE_MMAP
   bfd_size_type sz;
-  file_ptr filesz;
+  ufile_ptr filesz;
 
   if (count == 0)
     return TRUE;
@@ -867,13 +862,8 @@
   else
     sz = section->size;
   filesz = bfd_get_file_size (abfd);
-  if (filesz < 0)
-    {
-      /* This should never happen.  */
-      abort ();
-    }
   if (offset + count > sz
-      || (section->filepos + offset + sz) > (bfd_size_type) filesz
+      || section->filepos + offset + count > filesz
       || ! bfd_get_file_window (abfd, section->filepos + offset, count, w,
 				TRUE))
     return FALSE;
Index: git/bfd/ChangeLog
===================================================================
--- git.orig/bfd/ChangeLog	2017-09-21 18:03:42.955872017 +0530
+++ git/bfd/ChangeLog	2017-09-21 18:06:39.973228125 +0530
@@ -11,6 +11,14 @@
        of end pointer.
        (evax_bfd_print_emh): Check for invalid string lengths.
 
+2017-06-27  Alan Modra  <amodra@gmail.com>
+
+       PR binutils/21665
+       * libbfd.c (_bfd_generic_get_section_contents): Delete abort.
+       Use unsigned file pointer type, and remove cast.
+       * libbfd.c (_bfd_generic_get_section_contents_in_window): Likewise.
+       Add "count", not "sz".
+
 2017-06-26  Pedro Alves  <palves@redhat.com>
 
        PR binutils/21665
