---
id: pr-flashinfer-3025
repo: flashinfer-ai/flashinfer
pr: 3025
title: Prevent MoE autotuner buffer overflow on large token buckets
author: leejnau
date: '2026-04-10'
url: https://github.com/flashinfer-ai/flashinfer/pull/3025
source_category: upstream-code
architectures:
- sm100
tags:
- kernel-fusion
- moe
techniques:
- kernel-fusion
hardware_features: []
kernel_types:
- moe
languages:
- cute-dsl
captured_at: '2026-04-27'
status: merged
merge_sha: a1166dc0169b479aa3220b61759547d04c64e473
inclusion_reason: kernel file changes
changed_paths:
- flashinfer/fused_moe/cute_dsl/fused_moe.py
- flashinfer/fused_moe/cute_dsl/tuner.py
head_ref_oid: 127868db2110d74ea898fa4ba5c9a7527b3329bf
artifact_dir: evidence/pull-bundles/flashinfer/gh-3025
---
# Prevent MoE autotuner buffer overflow on large token buckets

- Repository: `flashinfer-ai/flashinfer`
- PR: [3025](https://github.com/flashinfer-ai/flashinfer/pull/3025)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `flashinfer/fused_moe/cute_dsl/fused_moe.py`
- `flashinfer/fused_moe/cute_dsl/tuner.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-3025`
