---
id: "CVE-2026-98783"
kind: "vulnerability"
aliases: ["CVE-2026-98783"]
title: "Linux kernel: MediaTek display driver crashes on failed platform device registration"
severity: "low"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["arm", "embedded", "infrastructure", "linux-kernel", "mediatek"]
not_affected_if: ["no-mediatek-display-hardware"]
published_at: "2026-10-18T16:17:32+00:00"
first_seen_at: "2026-10-23T21:57:16+00:00"
updated_at: "2026-10-25T05:15:21+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98783", "first_seen_at": "2026-10-23T21:57:16+00:00"}]
---

# Linux kernel: MediaTek display driver crashes on failed platform device registration

In the Linux kernel's MediaTek DRM driver, a platform device registration failure was not checked, so an error pointer could be stored and used. The result is a kernel crash (denial of service) on affected systems.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- unknown

## Fix

- Update the Linux kernel to a release that includes the upstream fix adding the IS_ERR check in drm/mediatek ovl_adaptor (version unknown from sources)

## Timeline

- 2026-10-23T21:57:16+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-98783

## From the sources

In the Linux kernel, the following vulnerability has been resolved:

drm/mediatek: Add missing IS_ERR check for ovl_adaptor platform device

platform_device_register_data() can fail and return an ERR_PTR, but the
return value is used without checking, leading to an invalid pointer
being stored in ddp_comp[].dev and passed to component_match_add() and
mtk_ddp_comp_init(), which could result in a kernel crash.

Add an IS_ERR() check to jump to the error handling path on failure.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_