{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7996/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f82eabd0ff8067d1ee95515f4174c9a9569d54cb",
              "status": "affected",
              "version": "3ce8acb86b6614b9f7af794f119f9627efe6b302",
              "versionType": "git"
            },
            {
              "lessThan": "f43e7d8ae4b6a73213032545552bab26f76f113a",
              "status": "affected",
              "version": "3ce8acb86b6614b9f7af794f119f9627efe6b302",
              "versionType": "git"
            },
            {
              "lessThan": "64cbf0d7ce9afe20666da90ec6ecaec6ba5ac64b",
              "status": "affected",
              "version": "3ce8acb86b6614b9f7af794f119f9627efe6b302",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7996/main.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "lessThan": "6.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.16.*",
              "status": "unaffected",
              "version": "6.16.1",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.17",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.10",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16.1",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17",
                  "versionStartIncluding": "6.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: Fix possible OOB access in mt7996_tx()\n\nFis possible Out-Of-Boundary access in mt7996_tx routine if link_id is\nset to IEEE80211_LINK_UNSPECIFIED"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:A - The vulnerable path is the mt7996 WiFi 7 TX handler, driven by frames the driver generates in response to an over-the-air MLO association from a wireless peer. Per kernel CNA guidance WiFi-reachable bugs are Adjacent.\nAC:L - `IEEE80211_LINK_UNSPECIFIED` is mac80211\u0027s default link value for every MLD-addressed frame and every fast-xmit frame, so an attacker simply associating with multi-link and prompting any management/action/EAPOL frame reliably drives the index-15 access. No race, timing, or memory-layout condition outside the attacker\u0027s control is involved.\nPR:N - The frames that carry `link_id == IEEE80211_LINK_UNSPECIFIED` include control-port/EAPOL and management frames emitted during MLO association, before the peer is authorized; on open networks no credentials exist at all. No account or capability on the target system is needed.\nUI:N - The AP transmits the offending frames automatically as part of normal MLO association and link management. No action by any local user or administrator is required.\nS:U - The out-of-bounds access and the resulting corruption are confined to the kernel of the affected device; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The out-of-bounds read walks past `link[]` into adjacent struct members and, on the vif path, substitutes `offchannel_link` so frames are transmitted under the wrong wcid/WTBL security context, exposing frame contents with the wrong or absent key. Combined with the memory-safety violation feeding a dereferenced pointer, High is the defensible assessment.\nI:H - The OOB-derived `wcid` pointer is used for writes in `mt76_tx()` \u2014 `__skb_queue_tail()` into `wcid-\u003etx_pending` and `list_add_tail(\u0026wcid-\u003etx_list, \u0026phy-\u003etx_list)` \u2014 so kernel memory is modified through an out-of-bounds-sourced pointer, and the vif path additionally misdirects frames onto the wrong link/peer.\nA:H - Dereferencing the bogus link pointer in `mt76_tx()` faults in the TX path (frequently in softirq context), producing a kernel oops/panic on the AP or client and taking down the wireless device and typically the whole system."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:03:20.543Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f82eabd0ff8067d1ee95515f4174c9a9569d54cb"
        },
        {
          "url": "https://git.kernel.org/stable/c/f43e7d8ae4b6a73213032545552bab26f76f113a"
        },
        {
          "url": "https://git.kernel.org/stable/c/64cbf0d7ce9afe20666da90ec6ecaec6ba5ac64b"
        }
      ],
      "title": "wifi: mt76: mt7996: Fix possible OOB access in mt7996_tx()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38599",
    "datePublished": "2025-08-19T17:03:34.029Z",
    "dateReserved": "2025-04-16T04:51:24.028Z",
    "dateUpdated": "2026-08-05T12:03:20.543Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}