CVE-2026-90123 (GCVE-0-2026-90123)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:06 – Updated: 2026-09-17 16:06
VLAI
Title
irqchip/ast2700-intc: Avoid allocating in the irq_domain activate() callback
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->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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 07825e41519abb8ac13d6d1c553af47f57775f6b , < f2f0da11648616e47419dca93610f6c0d70ec00b (git)
Affected: 07825e41519abb8ac13d6d1c553af47f57775f6b , < b76eee9c2157223aa4aac42ceebb563288e078aa (git)
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Linux Linux Affected: 7.2
Unaffected: 0 , < 7.2 (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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        {
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          "product": "Linux",
          "programFiles": [
            "drivers/irqchip/irq-ast2700-intc0.c",
            "drivers/irqchip/irq-ast2700-intc1.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/ast2700-intc: Avoid allocating in the irq_domain activate() callback\n\nThe interrupt core calls the irq_domain_activate() callback from\n__setup_irq() with desc-\u003elock held and interrupts disabled. Both\naspeed_intc1_irq_domain_activate() and aspeed_intc0_resolve_route() test a\ncompatible string with fwnode_device_is_compatible().\n\nfwnode_device_is_compatible() invokes fwnode_property_match_string(), which\nallocates with GFP_KERNEL. That\u0027s obviously not possible with interrupts\ndisabled and a raw spinlock held.\n\nBoth call sites are only ever handed OF nodes, so use\nof_device_is_compatible() instead: it walks the property in place and does\nnot allocate."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T16:06:26.567Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        },
        {
          "url": "https://git.kernel.org/stable/c/b76eee9c2157223aa4aac42ceebb563288e078aa"
        }
      ],
      "title": "irqchip/ast2700-intc: Avoid allocating in the irq_domain activate() callback",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-90123",
    "datePublished": "2026-09-17T16:06:26.567Z",
    "dateReserved": "2026-09-11T19:38:34.788Z",
    "dateUpdated": "2026-09-17T16:06:26.567Z",
    "state": "PUBLISHED"
  },
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      "percentile": "0.08488"
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                "vendor": "Linux",
                "versions": [
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        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/ast2700-intc: Avoid allocating in the irq_domain activate() callback\n\nThe interrupt core calls the irq_domain_activate() callback from\n__setup_irq() with desc-\u003elock held and interrupts disabled. Both\naspeed_intc1_irq_domain_activate() and aspeed_intc0_resolve_route() test a\ncompatible string with fwnode_device_is_compatible().\n\nfwnode_device_is_compatible() invokes fwnode_property_match_string(), which\nallocates with GFP_KERNEL. That\u0027s obviously not possible with interrupts\ndisabled and a raw spinlock held.\n\nBoth call sites are only ever handed OF nodes, so use\nof_device_is_compatible() instead: it walks the property in place and does\nnot allocate."
          }
        ],
        "id": "CVE-2026-90123",
        "lastModified": "2026-09-17T17:17:04.540",
        "metrics": {},
        "published": "2026-09-17T17:17:04.540",
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        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.