{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-90334",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.803Z",
        "datePublished": "2026-09-17T16:08:47.462Z",
        "dateUpdated": "2026-10-19T09:01:51.379Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:01:51.379Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntty: clear cdev pointer after cdev_add() failure\n\ntty_cdev_add() drops the cdev reference when cdev_add() fails, but\nleaves driver->cdevs[index] pointing to freed memory.\ntty_unregister_device() later passes that stale pointer to cdev_del(),\ncausing a use-after-free.\n\nClear the slot after dropping the reference."
                }
            ],
            "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"
                    ],
                    "versions": [
                        {
                            "version": "c1a752ba2d6b8a52879c7ab637cff38359ea9827",
                            "lessThan": "fb1de260033c215dba438973d82b48562bdc86bb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c1a752ba2d6b8a52879c7ab637cff38359ea9827",
                            "lessThan": "e9e64dd02fd68776afda00777591eca0c3984285",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c1a752ba2d6b8a52879c7ab637cff38359ea9827",
                            "lessThan": "33a44333a9dfda044b0e233399b12ead7f8a90ae",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c1a752ba2d6b8a52879c7ab637cff38359ea9827",
                            "lessThan": "d331c63570af61ef7aaf516b64a8d6f47518a3a4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c1a752ba2d6b8a52879c7ab637cff38359ea9827",
                            "lessThan": "a83fcddf3c75d004f12aa13555bb73da19fb75a9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c1a752ba2d6b8a52879c7ab637cff38359ea9827",
                            "lessThan": "4f6bd79bb7e55095f09bec9b4eb6c09df1306116",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c1a752ba2d6b8a52879c7ab637cff38359ea9827",
                            "lessThan": "5c5a795bf6248fe96f96dd9fd79d66bbb4a92077",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c1a752ba2d6b8a52879c7ab637cff38359ea9827",
                            "lessThan": "6645856f0df3aeecd45519cb611415b4b89c2223",
                            "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"
                    ],
                    "versions": [
                        {
                            "version": "4.3",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.3",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.270",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.221",
                            "lessThanOrEqual": "5.15.*",
                            "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": "6.12.110",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.52",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "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": "4.3",
                                    "versionEndExcluding": "5.10.270"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.3",
                                    "versionEndExcluding": "5.15.221"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.3",
                                    "versionEndExcluding": "6.1.188"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.3",
                                    "versionEndExcluding": "6.6.157"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.3",
                                    "versionEndExcluding": "6.12.110"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.3",
                                    "versionEndExcluding": "6.18.52"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.3",
                                    "versionEndExcluding": "7.2.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.3",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/fb1de260033c215dba438973d82b48562bdc86bb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e9e64dd02fd68776afda00777591eca0c3984285"
                },
                {
                    "url": "https://git.kernel.org/stable/c/33a44333a9dfda044b0e233399b12ead7f8a90ae"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d331c63570af61ef7aaf516b64a8d6f47518a3a4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a83fcddf3c75d004f12aa13555bb73da19fb75a9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4f6bd79bb7e55095f09bec9b4eb6c09df1306116"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5c5a795bf6248fe96f96dd9fd79d66bbb4a92077"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6645856f0df3aeecd45519cb611415b4b89c2223"
                }
            ],
            "title": "tty: clear cdev pointer after cdev_add() failure",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}