From f59860cea5f674d7ab6daf049c57f39fa84570eb Mon Sep 17 00:00:00 2001
From: Stephen Gutekanst <stephen@hexops.com>
Date: Sat, 5 Nov 2022 13:30:39 -0700
Subject: [PATCH] earcut: fix potential integer underflow

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
---
 libs/earcut/src/main.zig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libs/earcut/src/main.zig b/libs/earcut/src/main.zig
index f64642b9..d45c5e83 100644
--- a/libs/earcut/src/main.zig
+++ b/libs/earcut/src/main.zig
@@ -79,6 +79,7 @@ pub fn Processor(comptime T: type) type {
 
         /// create a circular doubly linked list from polygon points in the specified winding order
         fn linkedList(p: *@This(), allocator: Allocator, data: []const T, start: u32, end: u32, dim: u3, clockwise: bool) error{OutOfMemory}!?NodeIndex {
+            if (data.len < dim) return null;
             var i: u32 = undefined;
             var last: ?NodeIndex = null;