From b6859107f458ad1a2799816da546762b43104b4a Mon Sep 17 00:00:00 2001
From: Steven Czabaniuk <steven@solana.com>
Date: Thu, 22 Apr 2021 11:06:28 -0500
Subject: [PATCH] Check size on insertion

---
 ledger/src/blockstore.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ledger/src/blockstore.rs b/ledger/src/blockstore.rs
index 016c6d7f962b9d..732ef7fcc19455 100644
--- a/ledger/src/blockstore.rs
+++ b/ledger/src/blockstore.rs
@@ -1381,6 +1381,7 @@ impl Blockstore {
         shred: &Shred,
         write_batch: &mut WriteBatch,
     ) -> Result<Vec<(u32, u32)>> {
+        use crate::shred::SHRED_PAYLOAD_SIZE;
         let slot = shred.slot();
         let index = u64::from(shred.index());
 
@@ -1418,7 +1419,7 @@ impl Blockstore {
             (slot, index),
             // Payload will be padded out to SHRED_PAYLOAD_SIZE
             // But only need to store the bytes within data_header.size
-            &shred.payload[..shred.data_header.size as usize],
+            &shred.payload[..cmp::min(SHRED_PAYLOAD_SIZE, shred.data_header.size.into())],
         )?;
         data_index.set_present(index, true);
         let newly_completed_data_sets = update_slot_meta(