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.

zetlyn/cve-nvd vulnerability cve CVE-2026-97982 known 2026-09-25

https://nvd.nist.gov/vuln/detail/CVE-2026-97982

Properties

productLinux
receipt
Source
NVD
Its words
Linux
Read by
field:cve.affected[].affectedData[].product
Said since
2026-09-29 17:49 UTC
Last answered
2026-10-06 12:41 UTC
Original
open at the source
2026-09-29 17:49 UTCLinux
2026-09-29 09:45 UTC—
What the source handed over
{
  "cve": {
    "affected": [
      {
        "affectedData": [
          {
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            "product": "Linux",
            "programFiles": [
              "drivers/net/ethernet/cortina/gemini.c"
            ],
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            "vendor": "Linux",
            "versions": [
              {
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                "versionType": "git"
              },
              {
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                "versionType": "git"
              },
              {
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                "status": "affected",
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                "versionType": "git"
              },
              {
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              }
            ]
          },
          {
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              "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"
              },
              {
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                "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"
              },
              {
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                "status": "unaffected",
                "version": "7.3-rc3",
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              }
            ]
          }
        ],
        "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: 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."
      }
    ],
    "id": "CVE-2026-97982",
    "lastModified": "2026-09-25T11:17:26.230",
    "metrics": {},
    "published": "2026-09-25T11:17:26.230",
    "references": [
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/0ef8eaef5806c84db2334111d6f299c246a592bc"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/631c47e2e1154f2741c555b91df1b8cb99294c6a"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/94e06e12a376710587cfeea481b65e7c49747003"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/a0de06d0da78a3db53de65dfd7452cc6d111f703"
      }
    ],
    "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "vulnStatus": "Received"
  }
}
statusReceived
receipt
Source
NVD
Its words
Received
Read by
field:cve.vulnStatus
Said since
2026-09-29 09:45 UTC
Last answered
2026-10-06 12:41 UTC
Original
open at the source
What the source handed over
{
  "cve": {
    "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": "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": "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: 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."
      }
    ],
    "id": "CVE-2026-97982",
    "lastModified": "2026-09-25T11:17:26.230",
    "metrics": {},
    "published": "2026-09-25T11:17:26.230",
    "references": [
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/0ef8eaef5806c84db2334111d6f299c246a592bc"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/631c47e2e1154f2741c555b91df1b8cb99294c6a"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/94e06e12a376710587cfeea481b65e7c49747003"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/a0de06d0da78a3db53de65dfd7452cc6d111f703"
      }
    ],
    "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "vulnStatus": "Received"
  }
}
vendorLinux
receipt
Source
NVD
Its words
Linux
Read by
field:cve.affected[].affectedData[].vendor
Said since
2026-09-29 17:49 UTC
Last answered
2026-10-06 12:41 UTC
Original
open at the source
2026-09-29 17:49 UTCLinux
2026-09-29 09:45 UTC—
What the source handed over
{
  "cve": {
    "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": "631c47e2e1154f2741c555b91df1b8cb99294c6a",
                "status": "affected",
                "version": "4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88",
                "versionType": "git"
              },
              {
                "lessThan": "0ef8eaef5806c84db2334111d6f299c246a592bc",
                "status": "affected",
                "version": "4d5ae32f5e1e13f7f36d6439ec3257993b9f5b88",
                "versionType": "git"
              },
              {
                "lessThan": "94e06e12a376710587cfeea481b65e7c49747003",
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                "versionType": "git"
              },
              {
                "lessThan": "a0de06d0da78a3db53de65dfd7452cc6d111f703",
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                "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"
              }
            ]
          }
        ],
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      }
    ],
    "cveTags": [],
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      {
        "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."
      }
    ],
    "id": "CVE-2026-97982",
    "lastModified": "2026-09-25T11:17:26.230",
    "metrics": {},
    "published": "2026-09-25T11:17:26.230",
    "references": [
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "url": "https://git.kernel.org/stable/c/0ef8eaef5806c84db2334111d6f299c246a592bc"
      },
      {
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      }
    ],
    "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "vulnStatus": "Received"
  }
}

Text

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.