handle oob heap index calculation

2025-12-07 21:45:13 +01:00
parent d63b0a192c
commit 11901b5fde
2 changed files with 14 additions and 8 deletions
--- a/src/machine/heap.rs
+++ b/src/machine/heap.rs
@@ -623,7 +623,7 @@ impl Heap {

    pub fn reserve(&mut self, num_cells: usize) -> Result<HeapWriter<'_>, AllocError> {
        let section;
-        let len = heap_index!(num_cells);
+        let len = heap_index_checked!(num_cells).ok_or(AllocError)?;

        loop {
            unsafe {