X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gas%2Fconfig%2Ftc-i386-intel.c;h=a2cd286572d3fd7ab712fd3d49eba06755feb537;hb=4288405d5ec2c68c7e9d8d68a090c6c9ff3825d1;hp=fee9063afbe4864d679b68473aff3e70c45776d6;hpb=e968fc9b638e48a89e9a96804896c88a400e9be1;p=deliverable%2Fbinutils-gdb.git

diff --git a/gas/config/tc-i386-intel.c b/gas/config/tc-i386-intel.c
index fee9063afb..a2cd286572 100644
--- a/gas/config/tc-i386-intel.c
+++ b/gas/config/tc-i386-intel.c
@@ -1,5 +1,5 @@
 /* tc-i386.c -- Assemble Intel syntax code for ix86/x86-64
-   Copyright (C) 2009-2018 Free Software Foundation, Inc.
+   Copyright (C) 2009-2019 Free Software Foundation, Inc.
 
    This file is part of GAS, the GNU Assembler.
 
@@ -270,6 +270,12 @@ i386_intel_simplify_register (expressionS *e)
   else
     reg_num = e->X_md - 1;
 
+  if (reg_num < 0 || reg_num >= (int) i386_regtab_size)
+    {
+      as_bad (_("invalid register number"));
+      return 0;
+    }
+
   if (!intel_state.in_bracket)
     {
       if (i.op[this_operand].regs)