CVE-2026-98051 (GCVE-0-2026-98051)
Vulnerability from cvelistv5
Published
2026-09-25 10:23
Modified
2026-10-19 09:12
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: bcmasp: fix tx_spb_ring_full() checking same slot cnt times The loop initialised next_index from intf->tx_spb_index on every iteration, so incr_ring() always produced the same result and only one slot was ever tested. Move the initialisation before the loop so each iteration advances next_index and the function correctly checks that cnt consecutive descriptor slots are available before allowing a new transmission.
References
Impacted products
Vendor Product Version
Linux Linux Version: 490cb412007de593e07c1d3e2b1ec4233886707c
Version: 490cb412007de593e07c1d3e2b1ec4233886707c
Version: 490cb412007de593e07c1d3e2b1ec4233886707c
Version: 490cb412007de593e07c1d3e2b1ec4233886707c
Version: 490cb412007de593e07c1d3e2b1ec4233886707c
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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        {
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          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/broadcom/asp2/bcmasp_intf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.6"
            },
            {
              "lessThan": "6.6",
              "status": "unaffected",
              "version": "0",
              "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": "6.6.158",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.111",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.53",
                  "versionStartIncluding": "6.6",
                  "vulnerable": true
                },
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                  "versionEndExcluding": "7.2.7",
                  "versionStartIncluding": "6.6",
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                  "versionEndExcluding": "7.3",
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bcmasp: fix tx_spb_ring_full() checking same slot cnt times\n\nThe loop initialised next_index from intf-\u003etx_spb_index on every\niteration, so incr_ring() always produced the same result and only\none slot was ever tested.  Move the initialisation before the loop\nso each iteration advances next_index and the function correctly\nchecks that cnt consecutive descriptor slots are available before\nallowing a new transmission."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:12:57.148Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/990df1ba4d0805d1e7f6148c364febd2ab618766"
        },
        {
          "url": "https://git.kernel.org/stable/c/f7f7a16dd46ace4e221336a184c7806f7de19547"
        },
        {
          "url": "https://git.kernel.org/stable/c/a8bddab54aa68b407f12294acb05bd552fb6a492"
        },
        {
          "url": "https://git.kernel.org/stable/c/5df7ecd302488287665ab9767bacba7ed7e2842f"
        },
        {
          "url": "https://git.kernel.org/stable/c/0c5cf62e72d7a666ee4da757e122dc1600df1ecc"
        }
      ],
      "title": "net: bcmasp: fix tx_spb_ring_full() checking same slot cnt times",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98051",
    "datePublished": "2026-09-25T10:23:59.791Z",
    "dateReserved": "2026-09-25T10:19:56.072Z",
    "dateUpdated": "2026-10-19T09:12:57.148Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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