FKIE_CVE-2026-98822

Vulnerability from fkie_nvd - Published: 2026-10-18 16:17 - Updated: 2026-10-21 13:21
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: prevent AP VLAN tx from other interfaces Since the station lookup was factored out of ieee80211_build_hdr(), ieee80211_lookup_ra_sta() uses sta_info_get_bss() for all AP and AP VLAN frames, not only for control port frames. A unicast frame sent on one interface thus matches a station of a different VLAN of the same BSS and is transmitted to it. Only match stations of the interface the frame is sent on, except for control port frames, since those may be sent for VLAN stations directly on the BSS interface.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2fe08c8ff26841430a3c98ab755337325b5d47b5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7f93ca31f7fd9b42e7d692f59514436d448ac908
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/88e96d902efeefbffc34450969f40dc61a0c8a42
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ad61b9a5febb42e4b96df8d30ad76ddc36dda9d0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fd875e24e8f2b202e3636b3ef8e6060874eca0e5
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/mac80211/ieee80211_i.h",
            "net/mac80211/tx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2fe08c8ff26841430a3c98ab755337325b5d47b5",
              "status": "affected",
              "version": "97ffe75791b3e9c0797d5891070e41321c3beccb",
              "versionType": "git"
            },
            {
              "lessThan": "fd875e24e8f2b202e3636b3ef8e6060874eca0e5",
              "status": "affected",
              "version": "97ffe75791b3e9c0797d5891070e41321c3beccb",
              "versionType": "git"
            },
            {
              "lessThan": "88e96d902efeefbffc34450969f40dc61a0c8a42",
              "status": "affected",
              "version": "97ffe75791b3e9c0797d5891070e41321c3beccb",
              "versionType": "git"
            },
            {
              "lessThan": "ad61b9a5febb42e4b96df8d30ad76ddc36dda9d0",
              "status": "affected",
              "version": "97ffe75791b3e9c0797d5891070e41321c3beccb",
              "versionType": "git"
            },
            {
              "lessThan": "7f93ca31f7fd9b42e7d692f59514436d448ac908",
              "status": "affected",
              "version": "97ffe75791b3e9c0797d5891070e41321c3beccb",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/mac80211/ieee80211_i.h",
            "net/mac80211/tx.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.1"
            },
            {
              "lessThan": "4.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.160",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.113",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.56",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: prevent AP VLAN tx from other interfaces\n\nSince the station lookup was factored out of ieee80211_build_hdr(),\nieee80211_lookup_ra_sta() uses sta_info_get_bss() for all AP and AP VLAN\nframes, not only for control port frames. A unicast frame sent on one\ninterface thus matches a station of a different VLAN of the same BSS and\nis transmitted to it.\n\nOnly match stations of the interface the frame is sent on, except for\ncontrol port frames, since those may be sent for VLAN stations directly\non the BSS interface."
    }
  ],
  "id": "CVE-2026-98822",
  "lastModified": "2026-10-21T13:21:48.023",
  "metrics": {},
  "published": "2026-10-18T16:17:36.437",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2fe08c8ff26841430a3c98ab755337325b5d47b5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7f93ca31f7fd9b42e7d692f59514436d448ac908"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/88e96d902efeefbffc34450969f40dc61a0c8a42"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/ad61b9a5febb42e4b96df8d30ad76ddc36dda9d0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fd875e24e8f2b202e3636b3ef8e6060874eca0e5"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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