FKIE_CVE-2026-97434

Vulnerability from fkie_nvd - Published: 2026-09-24 17:17 - Updated: 2026-09-25 13:17
Severity
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/569df157eb874cb3b50554d73b89f31599397b42
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6518f87771c8833e587bd9881346fa759651c2ae
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e23d7c8c1d4ba435c457d7ffb2669175ec819b07
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": "569df157eb874cb3b50554d73b89f31599397b42",
              "status": "affected",
              "version": "0b1b71370458860579831e77485883fcf2e8fbbe",
              "versionType": "git"
            },
            {
              "lessThan": "6518f87771c8833e587bd9881346fa759651c2ae",
              "status": "affected",
              "version": "0b1b71370458860579831e77485883fcf2e8fbbe",
              "versionType": "git"
            },
            {
              "lessThan": "e23d7c8c1d4ba435c457d7ffb2669175ec819b07",
              "status": "affected",
              "version": "0b1b71370458860579831e77485883fcf2e8fbbe",
              "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": "5.13"
            },
            {
              "lessThan": "5.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.111",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "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: fix handling of NAPI on the remove path\n\nAll the NAPI instances for a DPSW device are attached to the first\nswitch port\u0027s 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."
    }
  ],
  "id": "CVE-2026-97434",
  "lastModified": "2026-09-25T13:17:27.030",
  "metrics": {},
  "published": "2026-09-24T17:17:21.453",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "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/e23d7c8c1d4ba435c457d7ffb2669175ec819b07"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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