{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-101308",
        "assignerOrgId": "63664ac6-956c-4cba-a5d0-f46076e16109",
        "state": "PUBLISHED",
        "assignerShortName": "freebsd",
        "dateReserved": "2026-09-28T13:33:02.323Z",
        "datePublished": "2026-10-15T07:08:52.619Z",
        "dateUpdated": "2026-10-15T15:40:12.607Z"
    },
    "containers": {
        "cna": {
            "datePublic": "2026-10-14T18:45:00.000Z",
            "title": "TOCTOU race between sound(4) buffer resizing and mmap",
            "references": [
                {
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://security.freebsd.org/advisories/FreeBSD-SA-26:71.sound.asc"
                }
            ],
            "affected": [
                {
                    "defaultStatus": "unknown",
                    "modules": [
                        "sound"
                    ],
                    "product": "FreeBSD",
                    "vendor": "FreeBSD",
                    "versions": [
                        {
                            "status": "affected",
                            "versionType": "release",
                            "version": "15.1-RELEASE",
                            "lessThan": "p5"
                        },
                        {
                            "status": "affected",
                            "versionType": "release",
                            "version": "14.5-RELEASE",
                            "lessThan": "p2"
                        },
                        {
                            "status": "affected",
                            "versionType": "release",
                            "version": "14.4-RELEASE",
                            "lessThan": "p11"
                        }
                    ]
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Hazley Samsudin of GovTech CSG"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "When an audio channel's buffer needs to be resized, the sound(4) driver checks that the buffer is not memory-mapped and then drops the channel lock to allocate a new buffer.  An mmap(2) call on another thread can complete during this window, after which the resize path frees the now-mapped buffer without rechecking.\n\nAn unprivileged local user with access to a sound device can exploit this race to trigger a use-after-free in the kernel, potentially escalating privileges."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-367",
                            "description": "CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "63664ac6-956c-4cba-a5d0-f46076e16109",
                "shortName": "freebsd",
                "dateUpdated": "2026-10-15T07:08:52.619Z"
            },
            "x_generator": {
                "engine": "cvelib 1.8.0"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 5.5,
                            "attackVector": "LOCAL",
                            "baseSeverity": "MEDIUM",
                            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                            "integrityImpact": "NONE",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "LOW",
                            "confidentialityImpact": "NONE"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-10-15T15:40:09.578920Z",
                                "id": "CVE-2026-101308",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-10-15T15:40:12.607Z"
                }
            }
        ]
    }
}