{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98751",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.368Z",
        "datePublished": "2026-10-18T15:47:36.026Z",
        "dateUpdated": "2026-10-21T12:56:26.697Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:56:26.697Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: abort break signalling on hangup\n\nThe break ioctls can race with hangup and end up calling into a tty\ndriver for a device that is already gone or powered down.\n\nDrivers must handle this race, but TCSBRK and TCSBRKP should still be\naborted to avoid calling back into the driver after a user-controlled\ntimeout (possibly even after the tty has been reopened).\n\nNote that drivers should disable any break state on shutdown so just\nreturn on hangup (calling break_ctl() again is racy and will most likely\nfail for drivers handling the race)."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/tty/tty_io.c",
                        "include/linux/tty.h"
                    ],
                    "versions": [
                        {
                            "version": "f34d7a5b7010b82fe97da95496b9971435530062",
                            "lessThan": "6c9c9367351a461d62e5c0a39bffdcfbb40f068b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f34d7a5b7010b82fe97da95496b9971435530062",
                            "lessThan": "3bc82999fb85cecc7eb6ec1755ee7d698aa1e783",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f34d7a5b7010b82fe97da95496b9971435530062",
                            "lessThan": "94af6cd832e9b4ce39a8fb59144a8f09ab56fd35",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f34d7a5b7010b82fe97da95496b9971435530062",
                            "lessThan": "c8ccd3b2013daaf77b98f8a6724fcf4d2c5c52d6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f34d7a5b7010b82fe97da95496b9971435530062",
                            "lessThan": "845a2737e0f5ffe5ca8d38de556012b0c9472cdd",
                            "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/tty_io.c",
                        "include/linux/tty.h"
                    ],
                    "versions": [
                        {
                            "version": "2.6.26",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.26",
                            "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": "2.6.26",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.26",
                                    "versionEndExcluding": "6.12.113"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.26",
                                    "versionEndExcluding": "6.18.56"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.26",
                                    "versionEndExcluding": "7.2.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.26",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/6c9c9367351a461d62e5c0a39bffdcfbb40f068b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3bc82999fb85cecc7eb6ec1755ee7d698aa1e783"
                },
                {
                    "url": "https://git.kernel.org/stable/c/94af6cd832e9b4ce39a8fb59144a8f09ab56fd35"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c8ccd3b2013daaf77b98f8a6724fcf4d2c5c52d6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/845a2737e0f5ffe5ca8d38de556012b0c9472cdd"
                }
            ],
            "title": "tty: abort break signalling on hangup",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}