---
id: CVE-2026-90123
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  irqchip/ast2700-intc: Avoid allocating in the irq_domain activate() callback

  The interrupt core calls the irq_domain_activate() callback from
  __setup_irq() with desc->…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  irqchip/ast2700-intc: Avoid allocating in the irq_domain activate() callback

  The interrupt core calls the irq_domain_activate() callback from
  __setup_irq() with desc->…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 07825e41519abb8ac13d6d1c553af47f57775f6b <
    f2f0da11648616e47419dca93610f6c0d70ec00b
  - >-
    Linux >= 07825e41519abb8ac13d6d1c553af47f57775f6b <
    b76eee9c2157223aa4aac42ceebb563288e078aa
  - Linux 7.2
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:17:04.540'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90123'
references:
  - url: 'https://git.kernel.org/stable/c/b76eee9c2157223aa4aac42ceebb563288e078aa'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/f2f0da11648616e47419dca93610f6c0d70ec00b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-17T16:21:47.883Z'
epss: 0.00198
epssPercentile: 0.08486
---

## Overview

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

irqchip/ast2700-intc: Avoid allocating in the irq_domain activate() callback

The interrupt core calls the irq_domain_activate() callback from
__setup_irq() with desc->lock held and interrupts disabled. Both
aspeed_intc1_irq_domain_activate() and aspeed_intc0_resolve_route() test a
compatible string with fwnode_device_is_compatible().

fwnode_device_is_compatible() invokes fwnode_property_match_string(), which
allocates with GFP_KERNEL. That's obviously not possible with interrupts
disabled and a raw spinlock held.

Both call sites are only ever handed OF nodes, so use
of_device_is_compatible() instead: it walks the property in place and does
not allocate.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.