lpc55-rot-startup: clear unused Handoff area when storing

Fixes #1429
oxidecomputer · Jun 22, 2023 · ac346bc · ac346bc
1 parent 39da7c7
commit ac346bc
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/lib/lpc55-rot-startup/src/handoff.rs b/lib/lpc55-rot-startup/src/handoff.rs
@@ -56,6 +56,11 @@ impl<'a> Handoff<'a> {
             .expect("handoff store header");
 
         // Serialize the data
-        n + hubpack::serialize(&mut dst[n..], t).expect("handoff store value")
+        let n = n + hubpack::serialize(&mut dst[n..], t)
+            .expect("handoff store value");
+
+        dst[n..].fill(0);
+
+        n
     }
 }