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FKIE_CVE-2026-74322

Vulnerability from fkie_nvd - Published: 2026-08-15 06:22 - Updated: 2026-08-17 06:19
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: Fix possible NULL pointer dereference in mt7996_mac_write_txwi_80211() For injected frames (e.g. via radiotap), mac80211 can pass info->control.vif = NULL, as explicitly noted in struct ieee80211_tx_info. Check vif pointer before executing ieee80211_vif_is_mld() in mt7996_mac_write_txwi_80211 routine in order to avoid a possible NULL pointer dereference.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/61370e6674b5253de5686813ceeceebc35a7d3e5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/63e6151b9791b31877a88ff62806e7c407683955
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dfb27e5dd9e4d34fbb74fa834c644dcef0be2be9
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7996/mac.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "dfb27e5dd9e4d34fbb74fa834c644dcef0be2be9",
              "status": "affected",
              "version": "f0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1",
              "versionType": "git"
            },
            {
              "lessThan": "63e6151b9791b31877a88ff62806e7c407683955",
              "status": "affected",
              "version": "f0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1",
              "versionType": "git"
            },
            {
              "lessThan": "61370e6674b5253de5686813ceeceebc35a7d3e5",
              "status": "affected",
              "version": "f0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7996/mac.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": "6.18.*",
              "status": "unaffected",
              "version": "6.18.40",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.5",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "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: mt76: mt7996: Fix possible NULL pointer dereference in mt7996_mac_write_txwi_80211()\n\nFor injected frames (e.g. via radiotap), mac80211 can pass\ninfo-\u003econtrol.vif = NULL, as explicitly noted in struct ieee80211_tx_info.\nCheck vif pointer before executing ieee80211_vif_is_mld() in\nmt7996_mac_write_txwi_80211 routine in order to avoid a possible NULL\npointer dereference."
    }
  ],
  "id": "CVE-2026-74322",
  "lastModified": "2026-08-17T06:19:26.660",
  "metrics": {},
  "published": "2026-08-15T06:22:32.757",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/61370e6674b5253de5686813ceeceebc35a7d3e5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/63e6151b9791b31877a88ff62806e7c407683955"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/dfb27e5dd9e4d34fbb74fa834c644dcef0be2be9"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}



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