CVE-2026-23180 (GCVE-0-2026-23180)

Vulnerability from cvelistv5 – Published: 2026-02-14 16:27 – Updated: 2026-05-11 22:01
VLAI
Title
dpaa2-switch: add bounds check for if_id in IRQ handler
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().
Severity
7 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 24ab724f8a4661b2dc8e696b41df93bdc108f7a1 , < 77611cab5bdfff7a070ae574bbfba20a1de99d1b (git)
Affected: 24ab724f8a4661b2dc8e696b41df93bdc108f7a1 , < 34b56c16efd61325d80bf1d780d0e176be662f59 (git)
Affected: 24ab724f8a4661b2dc8e696b41df93bdc108f7a1 , < f89e33c9c37f0001b730e23b3b05ab7b1ecface2 (git)
Affected: 24ab724f8a4661b2dc8e696b41df93bdc108f7a1 , < 2447edc367800ba914acf7ddd5d250416b45fb31 (git)
Affected: 24ab724f8a4661b2dc8e696b41df93bdc108f7a1 , < 1b381a638e1851d8cfdfe08ed9cdbec5295b18c9 (git)
Affected: 24ab724f8a4661b2dc8e696b41df93bdc108f7a1 , < 31a7a0bbeb006bac2d9c81a2874825025214b6d8 (git)
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Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 5.15.200 , ≤ 5.15.* (semver)
Unaffected: 6.1.163 , ≤ 6.1.* (semver)
Unaffected: 6.6.124 , ≤ 6.6.* (semver)
Unaffected: 6.12.70 , ≤ 6.12.* (semver)
Unaffected: 6.18.10 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
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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().\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"24ab724f8a4661b2dc8e696b41df93bdc108f7a1\",\"lessThan\":\"77611cab5bdfff7a070ae574bbfba20a1de99d1b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"24ab724f8a4661b2dc8e696b41df93bdc108f7a1\",\"lessThan\":\"34b56c16efd61325d80bf1d780d0e176be662f59\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"24ab724f8a4661b2dc8e696b41df93bdc108f7a1\",\"lessThan\":\"f89e33c9c37f0001b730e23b3b05ab7b1ecface2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"24ab724f8a4661b2dc8e696b41df93bdc108f7a1\",\"lessThan\":\"2447edc367800ba914acf7ddd5d250416b45fb31\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"24ab724f8a4661b2dc8e696b41df93bdc108f7a1\",\"lessThan\":\"1b381a638e1851d8cfdfe08ed9cdbec5295b18c9\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"24ab724f8a4661b2dc8e696b41df93bdc108f7a1\",\"lessThan\":\"31a7a0bbeb006bac2d9c81a2874825025214b6d8\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.15\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.15\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.200\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.163\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.124\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.70\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.10\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.19\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.0,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.0,\"impactScore\":5.9}]},\"references\":[{\"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\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T07:19:20+00:00",
      "cve": "CVE-2026-23180",
      "id": "CVE-2026-23180",
      "initial_release_date": "2026-02-14T00:00:00+00:00",
      "product_status:known_affected": "76",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel (dpaa2-switch): Out-of-bounds read in IRQ handler due to improper if_id validation",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23180.json",
      "version": "3"
    }
  }
}



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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.


Detection rules are retrieved from Rulezet.