---
id: "CVE-2026-98435"
kind: "vulnerability"
aliases: ["CVE-2026-98435"]
title: "Linux kernel: EDAC Altera devres group anchored to wrong device"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["altera", "edac", "infrastructure", "linux-kernel"]
not_affected_if: []
published_at: "2026-10-18T15:16:53+00:00"
first_seen_at: "2026-10-23T21:57:15+00:00"
updated_at: "2026-10-25T05:27:37+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98435", "first_seen_at": "2026-10-23T21:57:15+00:00"}]
---

# Linux kernel: EDAC Altera devres group anchored to wrong device

In the Linux kernel's Altera EDAC driver, the devres group and managed IRQ requests in altr_portb_setup() were tied to a copied per-port embedded device instead of the real parent device, so the group and its resources could be torn down inconsistently. The sources describe this as a resource-lifetime fix and do not state what an attacker gains.

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

## Timeline

- 2026-10-23T21:57:15+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-98435

## From the sources

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

EDAC/altera: Use parent device for devres in altr_portb_setup()

Anchor the devres group and the devm-managed IRQ requests in altr_portb_setup()
to the actual parent device (device->edac->dev) instead of the embedded struct
device inside the copied per-port altr_edac_device_dev.

This keeps devres_open_group(), devm_request_irq(), devres_remove_group() and
devres_release_group() all referring to the same long-lived device so the
group and the resources allocated inside it are torn down together.

---

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