CVE-2026-68310 (GCVE-0-2026-68310)
Vulnerability from cvelistv5
Published
2026-08-10 12:02
Modified
2026-08-19 16:33
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: guard HE capability lookups mt7915_mcu_bss_he_tlv() and mt7915_mcu_sta_bfer_tlv() both run after checking HE support, then dereference the HE PHY capability returned by mt76_connac_get_he_phy_cap(). That helper can return NULL when no capability entry matches the vif type. Fetch the capability before appending the TLV and skip the HE-specific setup when no matching capability is available.
References
Impacted products
Vendor Product Version
Linux Linux Version: e6d557a78b6016eee7b9cd6832343efd32cc0b27
Version: e6d557a78b6016eee7b9cd6832343efd32cc0b27
Version: e6d557a78b6016eee7b9cd6832343efd32cc0b27
Version: e6d557a78b6016eee7b9cd6832343efd32cc0b27
Version: e6d557a78b6016eee7b9cd6832343efd32cc0b27
Version: e6d557a78b6016eee7b9cd6832343efd32cc0b27
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7915/mcu.c"
          ],
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        {
          "defaultStatus": "affected",
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          "programFiles": [
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.18"
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.1.183",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.6.148",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.42",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.183",
                  "versionStartIncluding": "5.18",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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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: mt7915: guard HE capability lookups\n\nmt7915_mcu_bss_he_tlv() and mt7915_mcu_sta_bfer_tlv() both run after\nchecking HE support, then dereference the HE PHY capability returned by\nmt76_connac_get_he_phy_cap(). That helper can return NULL when no\ncapability entry matches the vif type.\n\nFetch the capability before appending the TLV and skip the HE-specific\nsetup when no matching capability is available."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-19T16:33:03.090Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8d5f1f4d2ea2c9d626ccc28dba7ea0df862acc67"
        },
        {
          "url": "https://git.kernel.org/stable/c/23a2b98e754da04e0e90314d5fa8ca44349590fb"
        },
        {
          "url": "https://git.kernel.org/stable/c/a031f454f14e3e76ad03bcb23918e1a82b4b0869"
        },
        {
          "url": "https://git.kernel.org/stable/c/871549814eb4da081f1e93cc0c7ea626a310a966"
        },
        {
          "url": "https://git.kernel.org/stable/c/6f99a5667c6c7c3e0da1d3c4dc8dfb103042609e"
        },
        {
          "url": "https://git.kernel.org/stable/c/8e9db062654a388d0fa587acbeeae68dd33eba41"
        }
      ],
      "title": "wifi: mt76: mt7915: guard HE capability lookups",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-68310",
    "datePublished": "2026-08-10T12:02:44.917Z",
    "dateReserved": "2026-07-30T09:28:09.381Z",
    "dateUpdated": "2026-08-19T16:33:03.090Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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