From 77efbb834a5119b93e656dce6189f36df89645bb Mon Sep 17 00:00:00 2001
From: iximeow <me@iximeow.net>
Date: Sat, 3 Jul 2021 09:41:31 -0700
Subject: reject instructions when their opcode is `Invalid`

the evex route would allow "valid" instructions that have the opcode
`invalid`. this is.. not correct.
---
 src/shared/evex.in | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/shared/evex.in')

diff --git a/src/shared/evex.in b/src/shared/evex.in
index 2bcd2f4..f9574db 100644
--- a/src/shared/evex.in
+++ b/src/shared/evex.in
@@ -86,6 +86,9 @@ pub(crate) fn read_evex<T: Reader<<Arch as yaxpeax_arch::Arch>::Address, <Arch a
         }
         instruction.prefixes.apply_compressed_disp(false);
       }
+      if instruction.opcode == Opcode::Invalid {
+        return Err(DecodeError::InvalidOpcode);
+      }
       // TODO: apply rp and bp?
     } else {
       return Err(DecodeError::InvalidOpcode);
-- 
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