{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98754",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.368Z",
        "datePublished": "2026-10-18T15:47:40.255Z",
        "dateUpdated": "2026-10-26T06:55:48.861Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-26T06:55:48.861Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: vcc: hold port lock when clearing tty pointer in vcc_cleanup\n\nvcc_cleanup() sets port->tty to NULL without holding port->lock, racing\nwith vcc_event() LDC callbacks that read port->tty under port->lock and\nthen use tty->port. This can cause a use-after-free when the callback\ndereferences tty->port after cleanup has already destroyed and freed it."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/tty/vcc.c"
                    ],
                    "versions": [
                        {
                            "version": "8f03f948ba356b7cb254b45a4e78b5b3d86fd3bb",
                            "lessThan": "57753441ef84bee3bf0e9ee1e3778d119c44aa32",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8f03f948ba356b7cb254b45a4e78b5b3d86fd3bb",
                            "lessThan": "88f6ecb058801e9ce7b9aabc966530118d7cd53c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8f03f948ba356b7cb254b45a4e78b5b3d86fd3bb",
                            "lessThan": "821050631750e982007c0856c119346edba51cae",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8f03f948ba356b7cb254b45a4e78b5b3d86fd3bb",
                            "lessThan": "1a9fb9eaeb69b1f6c00bed09289a33d9fe1e7ae4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8f03f948ba356b7cb254b45a4e78b5b3d86fd3bb",
                            "lessThan": "03b49c991abb8d021ca6fe51cd173447236b0552",
                            "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/tty/vcc.c"
                    ],
                    "versions": [
                        {
                            "version": "4.14",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.14",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.113",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.56",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.10",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.14",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.14",
                                    "versionEndExcluding": "6.12.113"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.14",
                                    "versionEndExcluding": "6.18.56"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.14",
                                    "versionEndExcluding": "7.2.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.14",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/57753441ef84bee3bf0e9ee1e3778d119c44aa32"
                },
                {
                    "url": "https://git.kernel.org/stable/c/88f6ecb058801e9ce7b9aabc966530118d7cd53c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/821050631750e982007c0856c119346edba51cae"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1a9fb9eaeb69b1f6c00bed09289a33d9fe1e7ae4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/03b49c991abb8d021ca6fe51cd173447236b0552"
                }
            ],
            "title": "tty: vcc: hold port lock when clearing tty pointer in vcc_cleanup",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}