CVE-2026-98958 (GCVE-0-2026-98958)

Vulnerability from cvelistv5 – Published: 2026-10-23 12:19 – Updated: 2026-10-23 12:19
VLAI
Title
wifi: mt76: account non-AQL frames per peer rather than per link
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: account non-AQL frames per peer rather than per link The driver increments wcid->non_aql_packets when a frame goes to the hardware queue. The completion path decrements the counter again. For an MLO peer, the hardware reports the completion on the link that it used for the transmission. This link can differ from the link that the driver queued the frame on. In that case, the increment and the decrement go to different link wcids, and the count drifts upwards until it blocks the station. Keep the count on the wcid of the primary link, like the other peer-wide state.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7063 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 86c051f2c418abd7eefd8c545a01bdffd220cb95 , < 9f28f504650869d41f7b3e98e4bc4547af4d5670 (git)
Affected: 86c051f2c418abd7eefd8c545a01bdffd220cb95 , < e0f2ae4a7539454ec50c353571779fcda8c0cfcf (git)
Affected: 86c051f2c418abd7eefd8c545a01bdffd220cb95 , < 752770d7a58c821c17909c3ca67f9f14ab146a40 (git)
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Linux Linux Affected: 6.11
Unaffected: 0 , < 6.11 (semver)
Unaffected: 6.18.57 , ≤ 6.18.* (semver)
Unaffected: 7.2.11 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt76.h",
            "drivers/net/wireless/mediatek/mt76/tx.c"
          ],
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          "versions": [
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          "vendor": "Linux",
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: account non-AQL frames per peer rather than per link\n\nThe driver increments wcid-\u003enon_aql_packets when a frame goes to the\nhardware queue. The completion path decrements the counter again.\n\nFor an MLO peer, the hardware reports the completion on the link that it\nused for the transmission. This link can differ from the link that the\ndriver queued the frame on. In that case, the increment and the\ndecrement go to different link wcids, and the count drifts upwards until\nit blocks the station.\n\nKeep the count on the wcid of the primary link, like the other peer-wide\nstate."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-23T12:19:26.256Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/9f28f504650869d41f7b3e98e4bc4547af4d5670"
        },
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          "url": "https://git.kernel.org/stable/c/e0f2ae4a7539454ec50c353571779fcda8c0cfcf"
        },
        {
          "url": "https://git.kernel.org/stable/c/752770d7a58c821c17909c3ca67f9f14ab146a40"
        }
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      "title": "wifi: mt76: account non-AQL frames per peer rather than per link",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98958",
    "datePublished": "2026-10-23T12:19:26.256Z",
    "dateReserved": "2026-09-25T10:25:14.382Z",
    "dateUpdated": "2026-10-23T12:19:26.256Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
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      "date": "2026-10-27",
      "epss": "0.00174",
      "percentile": "0.06828"
    },
    "microsoft_vex": {
      "current_release_date": "2026-10-24T01:09:50.000Z",
      "cve": "CVE-2026-98958",
      "id": "msrc_CVE-2026-98958",
      "initial_release_date": "2026-10-24T01:09:50.000Z",
      "product_status:under_investigation": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "wifi: mt76: account non-AQL frames per peer rather than per link",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-98958.json",
      "version": "1"
    },
    "nvd": {
      "cve": {
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            "affectedData": [
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                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/net/wireless/mediatek/mt76/mt76.h",
                  "drivers/net/wireless/mediatek/mt76/tx.c"
                ],
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                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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                  }
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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\nwifi: mt76: account non-AQL frames per peer rather than per link\n\nThe driver increments wcid-\u003enon_aql_packets when a frame goes to the\nhardware queue. The completion path decrements the counter again.\n\nFor an MLO peer, the hardware reports the completion on the link that it\nused for the transmission. This link can differ from the link that the\ndriver queued the frame on. In that case, the increment and the\ndecrement go to different link wcids, and the count drifts upwards until\nit blocks the station.\n\nKeep the count on the wcid of the primary link, like the other peer-wide\nstate."
          }
        ],
        "id": "CVE-2026-98958",
        "lastModified": "2026-10-23T13:17:17.120",
        "metrics": {},
        "published": "2026-10-23T13:17:17.120",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/752770d7a58c821c17909c3ca67f9f14ab146a40"
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            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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          },
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        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Received"
      }
    }
  }
}



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