FKIE_CVE-2026-97981

Vulnerability from fkie_nvd - Published: 2026-09-25 11:17 - Updated: 2026-09-25 11:17
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: cortina: Count dropped frames as NAPI work The RX loop only consumes budget when it successfully delivers a frame. Error paths keep consuming descriptors without reducing the budget, so a stream of bad frames can process the entire receive ring in one poll. Move the budget accounting to a common end-of-frame path. This counts each completed frame as NAPI work whether it was delivered or dropped, matching the behavior of the vendor driver.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5754e0c0758805096ecfeaf4c1b146ad51ed246f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/58140f1cebb776d174dc6ff41c15401654a5b1ea
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b856c552f556bc0341c1dbe0bf88e630fd1dc4b7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cceb6cd7f0e5ed2944a9ca22443d7b9da82f60ab
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/cortina/gemini.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "58140f1cebb776d174dc6ff41c15401654a5b1ea",
              "status": "affected",
              "version": "4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88",
              "versionType": "git"
            },
            {
              "lessThan": "cceb6cd7f0e5ed2944a9ca22443d7b9da82f60ab",
              "status": "affected",
              "version": "4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88",
              "versionType": "git"
            },
            {
              "lessThan": "5754e0c0758805096ecfeaf4c1b146ad51ed246f",
              "status": "affected",
              "version": "4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88",
              "versionType": "git"
            },
            {
              "lessThan": "b856c552f556bc0341c1dbe0bf88e630fd1dc4b7",
              "status": "affected",
              "version": "4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/cortina/gemini.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.16"
            },
            {
              "lessThan": "4.16",
              "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": "7.2.*",
              "status": "unaffected",
              "version": "7.2.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc3",
              "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\nnet: ethernet: cortina: Count dropped frames as NAPI work\n\nThe RX loop only consumes budget when it successfully delivers a frame.\nError paths keep consuming descriptors without reducing the budget, so a\nstream of bad frames can process the entire receive ring in one poll.\n\nMove the budget accounting to a common end-of-frame path. This counts\neach completed frame as NAPI work whether it was delivered or dropped,\nmatching the behavior of the vendor driver."
    }
  ],
  "id": "CVE-2026-97981",
  "lastModified": "2026-09-25T11:17:26.127",
  "metrics": {},
  "published": "2026-09-25T11:17:26.127",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5754e0c0758805096ecfeaf4c1b146ad51ed246f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/58140f1cebb776d174dc6ff41c15401654a5b1ea"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/b856c552f556bc0341c1dbe0bf88e630fd1dc4b7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cceb6cd7f0e5ed2944a9ca22443d7b9da82f60ab"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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