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CVE-2026-80934 wifi: mt76: mt7996: fix TX DMA mapping leak for AddBA req frames

🗓️ 11 Sep 2026 19:42:08Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 9 Views

TX DMA mapping leak in mt7996 WiFi driver for AddBA frames exhausts swiotlb pool on reconnects.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-80934
11 Sep 202619:42
cve
euvd
EUVD
EUVD-2026-76257
11 Sep 202619:42
euvd
nvd
NVD
CVE-2026-80934
11 Sep 202620:18
nvd
ptsecurity
Positive Technologies
PT-2026-90064
11 Sep 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-80934
11 Sep 202621:38
redhatcve
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/wireless/mediatek/mt76/mt7996/mac.c"
    ],
    "versions": [
      {
        "version": "cb6ebbdffef2a888b95f121637cd1fad473919c6",
        "lessThan": "01f2e0da8548f82d704b65b513026cfedc5f8962",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cb6ebbdffef2a888b95f121637cd1fad473919c6",
        "lessThan": "b754d3a6d44c53d9853eba374d8a7ef279a9d00a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "cb6ebbdffef2a888b95f121637cd1fad473919c6",
        "lessThan": "deaa2e3656937fbbe312f0ee2616c756c6e2511f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "91a5a48702e948e45df01a4f2fd54a0b0d0d6efb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6.17.8",
        "lessThan": "6.18",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/wireless/mediatek/mt76/mt7996/mac.c"
    ],
    "versions": [
      {
        "version": "6.18",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.18",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.50",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.4",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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