FKIE_CVE-2026-23180

Vulnerability from fkie_nvd - Published: 2026-02-14 17:15 - Updated: 2026-10-19 19:17
Severity
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: dpaa2-switch: add bounds check for if_id in IRQ handler The IRQ handler extracts if_id from the upper 16 bits of the hardware status register and uses it to index into ethsw->ports[] without validation. Since if_id can be any 16-bit value (0-65535) but the ports array is only allocated with sw_attr.num_ifs elements, this can lead to an out-of-bounds read potentially. Add a bounds check before accessing the array, consistent with the existing validation in dpaa2_switch_rx().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1b381a638e1851d8cfdfe08ed9cdbec5295b18c9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2447edc367800ba914acf7ddd5d250416b45fb31
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/31a7a0bbeb006bac2d9c81a2874825025214b6d8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/34b56c16efd61325d80bf1d780d0e176be662f59
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/77611cab5bdfff7a070ae574bbfba20a1de99d1b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f89e33c9c37f0001b730e23b3b05ab7b1ecface2
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "77611cab5bdfff7a070ae574bbfba20a1de99d1b",
              "status": "affected",
              "version": "24ab724f8a4661b2dc8e696b41df93bdc108f7a1",
              "versionType": "git"
            },
            {
              "lessThan": "34b56c16efd61325d80bf1d780d0e176be662f59",
              "status": "affected",
              "version": "24ab724f8a4661b2dc8e696b41df93bdc108f7a1",
              "versionType": "git"
            },
            {
              "lessThan": "f89e33c9c37f0001b730e23b3b05ab7b1ecface2",
              "status": "affected",
              "version": "24ab724f8a4661b2dc8e696b41df93bdc108f7a1",
              "versionType": "git"
            },
            {
              "lessThan": "2447edc367800ba914acf7ddd5d250416b45fb31",
              "status": "affected",
              "version": "24ab724f8a4661b2dc8e696b41df93bdc108f7a1",
              "versionType": "git"
            },
            {
              "lessThan": "1b381a638e1851d8cfdfe08ed9cdbec5295b18c9",
              "status": "affected",
              "version": "24ab724f8a4661b2dc8e696b41df93bdc108f7a1",
              "versionType": "git"
            },
            {
              "lessThan": "31a7a0bbeb006bac2d9c81a2874825025214b6d8",
              "status": "affected",
              "version": "24ab724f8a4661b2dc8e696b41df93bdc108f7a1",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.15"
            },
            {
              "lessThan": "5.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.200",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.163",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.124",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.70",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndpaa2-switch: add bounds check for if_id in IRQ handler\n\nThe IRQ handler extracts if_id from the upper 16 bits of the hardware\nstatus register and uses it to index into ethsw-\u003eports[] without\nvalidation. Since if_id can be any 16-bit value (0-65535) but the ports\narray is only allocated with sw_attr.num_ifs elements, this can lead to\nan out-of-bounds read potentially.\n\nAdd a bounds check before accessing the array, consistent with the\nexisting validation in dpaa2_switch_rx()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndpaa2-switch: a\u00f1adir comprobaci\u00f3n de l\u00edmites para if_id en el manejador IRQ\n\nEl manejador IRQ extrae if_id de los 16 bits superiores del registro de estado del hardware y lo utiliza para indexar en ethsw-\u0026gt;ports[] sin validaci\u00f3n. Dado que if_id puede ser cualquier valor de 16 bits (0-65535) pero el array de puertos solo se asigna con elementos sw_attr.num_ifs, esto puede llevar a una posible lectura fuera de l\u00edmites.\n\nA\u00f1adir una comprobaci\u00f3n de l\u00edmites antes de acceder al array, consistente con la validaci\u00f3n existente en dpaa2_switch_rx()."
    }
  ],
  "id": "CVE-2026-23180",
  "lastModified": "2026-10-19T19:17:40.570",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-23180",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-16T15:06:42.474268Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-02-14T17:15:55.747",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1b381a638e1851d8cfdfe08ed9cdbec5295b18c9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2447edc367800ba914acf7ddd5d250416b45fb31"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/31a7a0bbeb006bac2d9c81a2874825025214b6d8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/34b56c16efd61325d80bf1d780d0e176be662f59"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/77611cab5bdfff7a070ae574bbfba20a1de99d1b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f89e33c9c37f0001b730e23b3b05ab7b1ecface2"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



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