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CVE-2026-90123

Estado: RecibidaSin puntuar—

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.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-90123",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "07825e41519abb8ac13d6d1c553af47f57775f6b",
              "lessThan": "f2f0da11648616e47419dca93610f6c0d70ec00b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "07825e41519abb8ac13d6d1c553af47f57775f6b",
              "lessThan": "b76eee9c2157223aa4aac42ceebb563288e078aa",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/irqchip/irq-ast2700-intc0.c",
            "drivers/irqchip/irq-ast2700-intc1.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7.2"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "7.2",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/irqchip/irq-ast2700-intc0.c",
            "drivers/irqchip/irq-ast2700-intc1.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-17T17:17:04.540",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/b76eee9c2157223aa4aac42ceebb563288e078aa",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f2f0da11648616e47419dca93610f6c0d70ec00b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "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->lock 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's 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."
    }
  ],
  "lastModified": "2026-09-17T17:17:04.540",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}