CVE-2026-98618 (GCVE-0-2026-98618)
Vulnerability from cvelistv5
Published
2026-10-18 15:19
Modified
2026-10-19 09:22
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: eth: fbnic: Handle maximum standalone channels Standalone channels use one NAPI vector for each Tx and Rx queue. fbnic's allocation path excludes FBNIC_MAX_TXQS from that layout. A 64-Tx/64-Rx configuration therefore records 128 vectors but allocates only 64, leaving NULL entries that resource setup dereferences. Include the maximum vector count in standalone allocation.
References
Impacted products
Vendor Product Version
Linux Linux Version: bc6107771bb4be3009168cfda24d22131c026fe8
Version: bc6107771bb4be3009168cfda24d22131c026fe8
Version: bc6107771bb4be3009168cfda24d22131c026fe8
Version: bc6107771bb4be3009168cfda24d22131c026fe8
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/meta/fbnic/fbnic_txrx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "9843e5fabd6ab296df9c025b1d0e5bf79a6b8a08",
              "status": "affected",
              "version": "bc6107771bb4be3009168cfda24d22131c026fe8",
              "versionType": "git"
            },
            {
              "lessThan": "6c903188b67617070017305a325fa326f270a43d",
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            {
              "lessThan": "16ff1023213cc39c1a7ce737205c2a1a53c3a716",
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              "versionType": "git"
            },
            {
              "lessThan": "1f4c73064a50f53d596c6f1d06d2d700f43c4b32",
              "status": "affected",
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/meta/fbnic/fbnic_txrx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.11"
            },
            {
              "lessThan": "6.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.55",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.9",
              "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": "6.12.112",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.55",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.9",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "versionStartIncluding": "6.11",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\neth: fbnic: Handle maximum standalone channels\n\nStandalone channels use one NAPI vector for each Tx and Rx queue.\nfbnic\u0027s allocation path excludes FBNIC_MAX_TXQS from that layout. A\n64-Tx/64-Rx configuration therefore records 128 vectors but allocates\nonly 64, leaving NULL entries that resource setup dereferences.\n\nInclude the maximum vector count in standalone allocation."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:22:46.174Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/9843e5fabd6ab296df9c025b1d0e5bf79a6b8a08"
        },
        {
          "url": "https://git.kernel.org/stable/c/6c903188b67617070017305a325fa326f270a43d"
        },
        {
          "url": "https://git.kernel.org/stable/c/16ff1023213cc39c1a7ce737205c2a1a53c3a716"
        },
        {
          "url": "https://git.kernel.org/stable/c/1f4c73064a50f53d596c6f1d06d2d700f43c4b32"
        }
      ],
      "title": "eth: fbnic: Handle maximum standalone channels",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98618",
    "datePublished": "2026-10-18T15:19:38.631Z",
    "dateReserved": "2026-09-25T10:25:14.360Z",
    "dateUpdated": "2026-10-19T09:22:46.174Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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