CVE-2026-89751Published

x86/tdx: Fix off-by-one in port I/O handling

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-89751

Published

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "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"
                        }
                    ]
                }

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "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",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON