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CVE-2026-89524 wifi: ath6kl: clamp assoc request/response lengths before subtracting IE offsets

🗓️ 11 Sep 2026 19:44:05Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 4 Views

u8 underflow in ath6kl WiFi driver exposes slab memory via nl80211 to user space.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-89524
11 Sep 202619:44
cve
euvd
EUVD
EUVD-2026-76430
11 Sep 202619:44
euvd
nvd
NVD
CVE-2026-89524
11 Sep 202620:19
nvd
ptsecurity
Positive Technologies
PT-2026-90240
11 Sep 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-89524
11 Sep 202622:37
redhatcve
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/wireless/ath/ath6kl/cfg80211.c"
    ],
    "versions": [
      {
        "version": "bdcd81707973cf8aa9305337166f8ee842a050d4",
        "lessThan": "e3619bed5da125713b29ac881dc66f5e06606f88",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bdcd81707973cf8aa9305337166f8ee842a050d4",
        "lessThan": "e1330d719c047c4d8190a16be034b29fc601a815",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bdcd81707973cf8aa9305337166f8ee842a050d4",
        "lessThan": "8eb73016fb3968cf2db3987a92764563a3af773a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bdcd81707973cf8aa9305337166f8ee842a050d4",
        "lessThan": "3bbd05723d15dd06f0560bcd94fbf9a91b5f5613",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/net/wireless/ath/ath6kl/cfg80211.c"
    ],
    "versions": [
      {
        "version": "3.2",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.2",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.109",
        "lessThanOrEqual": "6.12.*",
        "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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