---
id: pr-vllm-15200
repo: vllm-project/vllm
pr: 15200
title: '[Bugfix] Fix incorrect qwen2.5-vl attention mask pre-computation'
author: Isotr0py
date: '2025-03-21'
url: https://github.com/vllm-project/vllm/pull/15200
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- decode
techniques: []
hardware_features: []
kernel_types:
- attention
- decode
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: 1e508343e1ec6c5466586a9bcb7b229f0d879c76
inclusion_reason: semantic match with file changes
changed_paths:
- tests/models/decoder_only/vision_language/test_models.py
- tests/models/decoder_only/vision_language/vlm_utils/custom_inputs.py
- vllm/model_executor/models/qwen2_5_vl.py
head_ref_oid: 874842e13da82383e154b55c790345e92865b437
artifact_dir: evidence/pull-bundles/vllm/gh-15200
---
# [Bugfix] Fix incorrect qwen2.5-vl attention mask pre-computation

- Repository: `vllm-project/vllm`
- PR: [15200](https://github.com/vllm-project/vllm/pull/15200)
- Decision: `semantic match with file changes`
- Reason: semantic match with file changes

## Changed Paths

- `tests/models/decoder_only/vision_language/test_models.py`
- `tests/models/decoder_only/vision_language/vlm_utils/custom_inputs.py`
- `vllm/model_executor/models/qwen2_5_vl.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-15200`
