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CVE-2026-23441

Estado: AnalizadaMedia (4.7)—

In the Linux kernel, the following vulnerability has been resolved:

net/mlx5e: Prevent concurrent access to IPSec ASO context

The query or updating IPSec offload object is through Access ASO WQE. The driver uses a single mlx5e_ipsec_aso struct for each PF, which contains a shared DMA-mapped context for all ASO operations.

A race condition exists because the ASO spinlock is released before the hardware has finished processing WQE. If a second operation is initiated immediately after, it overwrites the shared context in the DMA area.

When the first operation's completion is processed later, it reads this corrupted context, leading to unexpected behavior and incorrect results.

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This commit fixes the race by introducing a private context within each IPSec offload object. The shared ASO context is now copied to this private context while the ASO spinlock is held. Subsequent processing uses this saved, per-object context, ensuring its integrity is maintained.

CVSS

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)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2026-23441",
  "cveTags": [],
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.7,
          "attackVector": "LOCAL",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "NONE"
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        "impactScore": 3.6,
        "exploitabilityScore": 1
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  "published": "2026-04-03T16:16:26.340",
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      "description": [
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          "value": "CWE-362"
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    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Prevent concurrent access to IPSec ASO context\n\nThe query or updating IPSec offload object is through Access ASO WQE.\nThe driver uses a single mlx5e_ipsec_aso struct for each PF, which\ncontains a shared DMA-mapped context for all ASO operations.\n\nA race condition exists because the ASO spinlock is released before\nthe hardware has finished processing WQE. If a second operation is\ninitiated immediately after, it overwrites the shared context in the\nDMA area.\n\nWhen the first operation's completion is processed later, it reads\nthis corrupted context, leading to unexpected behavior and incorrect\nresults.\n\nThis commit fixes the race by introducing a private context within\neach IPSec offload object. The shared ASO context is now copied to\nthis private context while the ASO spinlock is held. Subsequent\nprocessing uses this saved, per-object context, ensuring its integrity\nis maintained."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnet/mlx5e: Evitar el acceso concurrente al contexto ASO de IPSec\n\nLa consulta o actualización del objeto de descarga de IPSec se realiza a través de Access ASO WQE.\nEl controlador utiliza una única estructura mlx5e_ipsec_aso para cada PF, que contiene un contexto compartido mapeado por DMA para todas las operaciones ASO.\n\nExiste una condición de carrera porque el spinlock ASO se libera antes de que el hardware haya terminado de procesar el WQE. Si una segunda operación se inicia inmediatamente después, sobrescribe el contexto compartido en el área DMA.\n\nCuando la finalización de la primera operación se procesa más tarde, lee este contexto corrupto, lo que lleva a un comportamiento inesperado y resultados incorrectos.\n\nEste commit corrige la condición de carrera introduciendo un contexto privado dentro de cada objeto de descarga de IPSec. El contexto ASO compartido ahora se copia a este contexto privado mientras el spinlock ASO está retenido. El procesamiento posterior utiliza este contexto guardado por objeto, asegurando que su integridad se mantenga."
    }
  ],
  "lastModified": "2026-07-24T21:10:00.143",
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