---
id: pr-sglang-12758
repo: sgl-project/sglang
pr: 12758
title: '[Bugfix] Fix illegal memory access'
author: elvischenv
date: '2025-11-07'
url: https://github.com/sgl-project/sglang/pull/12758
source_category: upstream-code
architectures:
- sm100
tags:
- fp4
- kernel-fusion
- moe
- quantization
techniques:
- kernel-fusion
hardware_features:
- fp4
kernel_types:
- moe
- quantization
languages:
- python
- triton
captured_at: '2026-04-27'
status: merged
merge_sha: 1fa788ec1436b4853280ef910d30ad1d73914e52
inclusion_reason: kernel file changes
changed_paths:
- python/sglang/srt/layers/flashinfer_comm_fusion.py
- python/sglang/srt/layers/moe/fused_moe_triton/layer.py
- python/sglang/srt/layers/quantization/mxfp4.py
head_ref_oid: b008fbedea92ff25460a87815af4a198923acec1
artifact_dir: evidence/pull-bundles/sglang/gh-12758
---
# [Bugfix] Fix illegal memory access

- Repository: `sgl-project/sglang`
- PR: [12758](https://github.com/sgl-project/sglang/pull/12758)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `python/sglang/srt/layers/flashinfer_comm_fusion.py`
- `python/sglang/srt/layers/moe/fused_moe_triton/layer.py`
- `python/sglang/srt/layers/quantization/mxfp4.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-12758`
