CVE-2026-97982 (GCVE-0-2026-97982)
Vulnerability from cvelistv5
Published
2026-09-25 10:23
Modified
2026-10-19 09:11
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: cortina: Fix budget accounting The gmac_rx() function returns the remaining NAPI budget, but its caller treats the return value as the number of packets received. An idle poll therefore reports a full budget and remains scheduled. Return the number of received packets instead. Preserve the existing free queue refill accounting by adding that count directly; continuing to subtract it from the budget would invert the refill behavior.
References
Impacted products
Vendor Product Version
Linux Linux Version: 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88
Version: 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88
Version: 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88
Version: 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88
Version: 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88
Version: 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88
Version: 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88
Version: 4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "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": "d3deb54d9507c2d7f05efd896142095eef5b7d85",
              "status": "affected",
              "version": "4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88",
              "versionType": "git"
            },
            {
              "lessThan": "e6e5732b90d0fc25fd3d9961ff61e660297d7608",
              "status": "affected",
              "version": "4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88",
              "versionType": "git"
            },
            {
              "lessThan": "aa339ac334d4e51f43af9d2901e6faf11ffd981e",
              "status": "affected",
              "version": "4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88",
              "versionType": "git"
            },
            {
              "lessThan": "4ca84049c6428c665ef7c903a32a99ed0f1e01e9",
              "status": "affected",
              "version": "4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88",
              "versionType": "git"
            },
            {
              "lessThan": "631c47e2e1154f2741c555b91df1b8cb99294c6a",
              "status": "affected",
              "version": "4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88",
              "versionType": "git"
            },
            {
              "lessThan": "0ef8eaef5806c84db2334111d6f299c246a592bc",
              "status": "affected",
              "version": "4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88",
              "versionType": "git"
            },
            {
              "lessThan": "94e06e12a376710587cfeea481b65e7c49747003",
              "status": "affected",
              "version": "4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88",
              "versionType": "git"
            },
            {
              "lessThan": "a0de06d0da78a3db53de65dfd7452cc6d111f703",
              "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": "5.10.*",
              "status": "unaffected",
              "version": "5.10.271",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.158",
              "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",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.271",
                  "versionStartIncluding": "4.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.222",
                  "versionStartIncluding": "4.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.189",
                  "versionStartIncluding": "4.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.158",
                  "versionStartIncluding": "4.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.111",
                  "versionStartIncluding": "4.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.53",
                  "versionStartIncluding": "4.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.7",
                  "versionStartIncluding": "4.16",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "4.16",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ethernet: cortina: Fix budget accounting\n\nThe gmac_rx() function returns the remaining NAPI budget, but its\ncaller treats the return value as the number of packets received. An\nidle poll therefore reports a full budget and remains scheduled.\n\nReturn the number of received packets instead. Preserve the existing\nfree queue refill accounting by adding that count directly; continuing\nto subtract it from the budget would invert the refill behavior."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:11:49.378Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d3deb54d9507c2d7f05efd896142095eef5b7d85"
        },
        {
          "url": "https://git.kernel.org/stable/c/e6e5732b90d0fc25fd3d9961ff61e660297d7608"
        },
        {
          "url": "https://git.kernel.org/stable/c/aa339ac334d4e51f43af9d2901e6faf11ffd981e"
        },
        {
          "url": "https://git.kernel.org/stable/c/4ca84049c6428c665ef7c903a32a99ed0f1e01e9"
        },
        {
          "url": "https://git.kernel.org/stable/c/631c47e2e1154f2741c555b91df1b8cb99294c6a"
        },
        {
          "url": "https://git.kernel.org/stable/c/0ef8eaef5806c84db2334111d6f299c246a592bc"
        },
        {
          "url": "https://git.kernel.org/stable/c/94e06e12a376710587cfeea481b65e7c49747003"
        },
        {
          "url": "https://git.kernel.org/stable/c/a0de06d0da78a3db53de65dfd7452cc6d111f703"
        }
      ],
      "title": "net: ethernet: cortina: Fix budget accounting",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-97982",
    "datePublished": "2026-09-25T10:23:18.304Z",
    "dateReserved": "2026-09-25T10:18:58.208Z",
    "dateUpdated": "2026-10-19T09:11:49.378Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.