From 25e3d52b7e496405aaef187e49dd052ee1cecf05 Mon Sep 17 00:00:00 2001
From: Justus Winter <justus@sequoia-pgp.org>
Date: Thu, 20 Jan 2022 14:35:35 +0100
Subject: openpgp: Avoid unsafe, undefined behavior.

  - Now that the chunk size is capped, just initialize the scratch
    vector.
---
 openpgp/src/crypto/aead.rs | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

(limited to 'openpgp/src/crypto')

diff --git a/openpgp/src/crypto/aead.rs b/openpgp/src/crypto/aead.rs
index 5217c247..2193da04 100644
--- a/openpgp/src/crypto/aead.rs
+++ b/openpgp/src/crypto/aead.rs
@@ -573,8 +573,6 @@ impl<W: io::Write> Encryptor<W> {
                 format!("Invalid AEAD chunk size: {}", chunk_size)).into());
         }
 
-        let mut scratch = Vec::with_capacity(chunk_size);
-        unsafe { scratch.set_len(chunk_size); }
 
         Ok(Encryptor {
             inner: Some(sink),
@@ -596,7 +594,7 @@ impl<W: io::Write> Encryptor<W> {
             chunk_index: 0,
             bytes_encrypted: 0,
             buffer: Vec::with_capacity(chunk_size),
-            scratch,
+            scratch: vec![0; chunk_size],
         })
     }
 
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