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CVE-2026-97434

Estado: RecibidaSin puntuar—

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

dpaa2-switch: fix handling of NAPI on the remove path

All the NAPI instances for a DPSW device are attached to the first switch port's net_device but shared by all ports. The NAPI instances get disabled only once the last port goes down.

This causes an issue on the .remove() path where each port is unregistered and freed one at a time, causing the NAPI instances to be deleted even though they are not disabled.

In order to avoid this, split up the unregister_netdev() calls from the free_netdev() so that we make sure all ports go down before we attempt a deletion of NAPI instances. Also, make the netif_napi_del() explicit as it is on the .probe() path.

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-2026-97434",
  "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": "0b1b71370458860579831e77485883fcf2e8fbbe",
              "lessThan": "d39603e21087e9ef9cd125e5895cdc70b2eb154d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0b1b71370458860579831e77485883fcf2e8fbbe",
              "lessThan": "bd16f46d0796109d241d6311a7577f9956467c96",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0b1b71370458860579831e77485883fcf2e8fbbe",
              "lessThan": "c996faba71fc465ad12c6d177bd1a9ad974f9ee8",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0b1b71370458860579831e77485883fcf2e8fbbe",
              "lessThan": "569df157eb874cb3b50554d73b89f31599397b42",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0b1b71370458860579831e77485883fcf2e8fbbe",
              "lessThan": "6518f87771c8833e587bd9881346fa759651c2ae",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "0b1b71370458860579831e77485883fcf2e8fbbe",
              "lessThan": "e23d7c8c1d4ba435c457d7ffb2669175ec819b07",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.13"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.13",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.111",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-24T17:17:21.453",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/569df157eb874cb3b50554d73b89f31599397b42",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6518f87771c8833e587bd9881346fa759651c2ae",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/bd16f46d0796109d241d6311a7577f9956467c96",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c996faba71fc465ad12c6d177bd1a9ad974f9ee8",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d39603e21087e9ef9cd125e5895cdc70b2eb154d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e23d7c8c1d4ba435c457d7ffb2669175ec819b07",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndpaa2-switch: fix handling of NAPI on the remove path\n\nAll the NAPI instances for a DPSW device are attached to the first\nswitch port's net_device but shared by all ports. The NAPI instances get\ndisabled only once the last port goes down.\n\nThis causes an issue on the .remove() path where each port is\nunregistered and freed one at a time, causing the NAPI instances to be\ndeleted even though they are not disabled.\n\nIn order to avoid this, split up the unregister_netdev() calls from the\nfree_netdev() so that we make sure all ports go down before we attempt\na deletion of NAPI instances. Also, make the netif_napi_del() explicit\nas it is on the .probe() path."
    }
  ],
  "lastModified": "2026-10-03T11:17:54.850",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}