CVE-2026-98526

🗓️ 18 Oct 2026 15:17:44Reported by LinuxType

LLC response on stacked Ethernet devices can underflow skb headroom in eth_header().

Reporter	Title	Published	Views	Family All 7
Cvelist	CVE-2026-98526 llc: reserve device headroom for allocated frames	18 Oct 202615:17	–	cvelist
Debian CVE	CVE-2026-98526	18 Oct 202615:17	–	debiancve
EUVD	EUVD-2026-103571	18 Oct 202615:17	–	euvd
NVD	CVE-2026-98526	18 Oct 202616:17	–	nvd
osv_debian	DEBIAN-CVE-2026-98526	18 Oct 202617:47	–	osv_debian
Positive Technologies	PT-2026-116745	18 Oct 202600:00	–	ptsecurity
SUSE CVE	SUSE CVE-2026-98526	18 Oct 202623:45	–	susecve

Vulners

CNA

Node

linux linux_kernelRange2.6.34–5.10.271

linux linux_kernelRange5.11.0–5.15.222

linux linux_kernelRange5.16.0–6.1.189

linux linux_kernelRange6.2.0–6.6.158

linux linux_kernelRange6.7.0–6.12.112

linux linux_kernelRange6.13.0–6.18.55

linux linux_kernelRange6.19.0–7.2.9

linux linux_kernelRange7.3.0≥

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/llc/llc_sap.c"
    ],
    "versions": [
      {
        "version": "bf9ae5386bca8836c16e69ab8fdbe46767d7452a",
        "lessThan": "018020f5a48cc86fdd6dc2d380f6c70443ae7639",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bf9ae5386bca8836c16e69ab8fdbe46767d7452a",
        "lessThan": "3a3f57c4061d9e9cc3bc04205d36ce41ae3406c1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bf9ae5386bca8836c16e69ab8fdbe46767d7452a",
        "lessThan": "7c38524b2b2456bd33cb360420da6cbf9cad1b33",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bf9ae5386bca8836c16e69ab8fdbe46767d7452a",
        "lessThan": "1937222c2511ac91377d39f28106c34734f5f8c6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bf9ae5386bca8836c16e69ab8fdbe46767d7452a",
        "lessThan": "16ceac2daa89dd16917bc488ab05b9dd6961a603",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bf9ae5386bca8836c16e69ab8fdbe46767d7452a",
        "lessThan": "e06f8b6e27cc616d3c587e9784c4a033eb310a16",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bf9ae5386bca8836c16e69ab8fdbe46767d7452a",
        "lessThan": "3361c93e417384ebf28003e0fb6d5304653d3b05",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "bf9ae5386bca8836c16e69ab8fdbe46767d7452a",
        "lessThan": "72b5b9a28b996e09b8b5b944370c79851bb68f52",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/llc/llc_sap.c"
    ],
    "versions": [
      {
        "version": "2.6.34",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.34",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.271",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.222",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.189",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.158",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.112",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.55",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.9",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/e06f8b6e27cc616d3c587e9784c4a033eb310a16
git	www.git.kernel.org/stable/c/3361c93e417384ebf28003e0fb6d5304653d3b05
git	www.git.kernel.org/stable/c/72b5b9a28b996e09b8b5b944370c79851bb68f52
git	www.git.kernel.org/stable/c/7c38524b2b2456bd33cb360420da6cbf9cad1b33
git	www.git.kernel.org/stable/c/16ceac2daa89dd16917bc488ab05b9dd6961a603
git	www.git.kernel.org/stable/c/018020f5a48cc86fdd6dc2d380f6c70443ae7639
git	www.git.kernel.org/stable/c/1937222c2511ac91377d39f28106c34734f5f8c6
git	www.git.kernel.org/stable/c/3a3f57c4061d9e9cc3bc04205d36ce41ae3406c1

19 Oct 2026 10:19Current

5.8Medium risk

Vulners AI Score5.8