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CVE-2026-89751

🗓️ 11 Sep 2026 19:46:55Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 27 Views

Off-by-one in Linux kernel x86/tdx port I/O mask calculation produces mask one bit too wide.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-89751
1 Oct 202618:00
–circl
cvelist
Cvelist
CVE-2026-89751 x86/tdx: Fix off-by-one in port I/O handling
11 Sep 202619:46
–cvelist
debian
Debian
[SECURITY] [DSA 6528-1] linux security update
29 Sep 202609:49
–debian
debiancve
Debian CVE
CVE-2026-89751
11 Sep 202619:46
–debiancve
nessus
Tenable Nessus
Debian dsa-6528 : ata-modules-6.12.111+deb13-armmp-di - security update
29 Sep 202600:00
–nessus
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-89751
12 Sep 202600:00
–nessus
euvd
EUVD
EUVD-2026-76663
11 Sep 202619:46
–euvd
nvd
NVD
CVE-2026-89751
11 Sep 202620:20
–nvd
osv
OSV
AZL-100772 CVE-2026-89751 affecting package kernel 6.6.152.1-1
11 Sep 202620:20
–osv
osv
OSV
BELL-CVE-2026-89751
15 Sep 202606:05
–osv
Rows per page
Vulners
CNA
Node
OR
linuxlinux_kernelRange5.19–6.1.188
linuxlinux_kernelRange6.2.0–6.6.157
linuxlinux_kernelRange6.7.0–6.12.109
linuxlinux_kernelRange6.13.0–6.18.50
linuxlinux_kernelRange6.19.0–7.2.4
linuxlinux_kernelRange7.3.0–7.3-rc1
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/coco/tdx/tdx.c"
    ],
    "versions": [
      {
        "version": "03149948832a078f759022ed5b92e722d8d23c26",
        "lessThan": "c6875423ad849ac234ab9812eb72f37ff8a490b4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "03149948832a078f759022ed5b92e722d8d23c26",
        "lessThan": "220011fe95fc78b2bc2d7d43893bc73957a5c811",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "03149948832a078f759022ed5b92e722d8d23c26",
        "lessThan": "222b7005e4519f633b4cd666226256abbab46a1a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "03149948832a078f759022ed5b92e722d8d23c26",
        "lessThan": "c4a22154870813d10aa0b4c734a574c726f9d4b0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "03149948832a078f759022ed5b92e722d8d23c26",
        "lessThan": "bb45f705c4440dd3c689328319b88dd28770bbb8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "03149948832a078f759022ed5b92e722d8d23c26",
        "lessThan": "0f63e656b1c679d32ac595de29d10c03efca6a25",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/coco/tdx/tdx.c"
    ],
    "versions": [
      {
        "version": "5.19",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.19",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.188",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.157",
        "lessThanOrEqual": "6.6.*",
        "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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14 Sep 2026 13:19Current
5.8Medium risk
Vulners AI Score5.8
EPSS0.00215
27