From: Matt Corallo <git@bluematt.me>
Date: Wed, 31 Jan 2024 19:48:44 +0000 (+0000)
Subject: [fuzz] Fix slice copy in `peer_crypt_target`
X-Git-Tag: v0.0.123-beta~80^2
X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=commitdiff_plain;h=7377cc99c7ae959a5d33fd170ff5b2b64c725fd2;p=rust-lightning

[fuzz] Fix slice copy in `peer_crypt_target`

This has apparently been broken for quite some time...I guess
`peer_crypt_target` doesn't get much CPU anymore.
---

diff --git a/fuzz/src/peer_crypt.rs b/fuzz/src/peer_crypt.rs
index 3acf4d66..41d8c093 100644
--- a/fuzz/src/peer_crypt.rs
+++ b/fuzz/src/peer_crypt.rs
@@ -83,7 +83,7 @@ pub fn do_test(data: &[u8]) {
 				Ok(len) => len,
 				Err(_) => return,
 			};
-			buf.copy_from_slice(&get_slice!(len as usize + 16));
+			buf[..len as usize + 16].copy_from_slice(&get_slice!(len as usize + 16));
 			match crypter.decrypt_message(&mut buf[..len as usize + 16]) {
 				Ok(_) => {},
 				Err(_) => return,