CVE-2026-23180

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().

CVSS v3 7.0 HIGH

7.0^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.0 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/1b381a638e1851d8cfdfe08ed9cdbec5295b18c9
https://git.kernel.org/stable/c/2447edc367800ba914acf7ddd5d250416b45fb31
https://git.kernel.org/stable/c/31a7a0bbeb006bac2d9c81a2874825025214b6d8
https://git.kernel.org/stable/c/34b56c16efd61325d80bf1d780d0e176be662f59
https://git.kernel.org/stable/c/77611cab5bdfff7a070ae574bbfba20a1de99d1b
https://git.kernel.org/stable/c/f89e33c9c37f0001b730e23b3b05ab7b1ecface2

Configurations

No configuration.

History

No history.

Information

Published : 2026-02-14 17:15

Updated : 2026-06-17 10:21

NVD link : CVE-2026-23180

Mitre link : CVE-2026-23180

CVE.ORG link : CVE-2026-23180

JSON object : View

Products Affected

No product.

CWE

No CWE.

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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->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()."}], "lastModified": "2026-06-17T10:21:02.943", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}