{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-21962",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-12-29T08:45:45.795Z",
        "datePublished": "2025-04-01T15:46:59.285Z",
        "dateUpdated": "2026-05-23T15:57:30.927Z"
    },
    "containers": {
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                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T15:57:30.927Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: Fix integer overflow while processing closetimeo mount option\n\nUser-provided mount parameter closetimeo of type u32 is intended to have\nan upper limit, but before it is validated, the value is converted from\nseconds to jiffies which can lead to an integer overflow.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/smb/client/fs_context.c"
                    ],
                    "versions": [
                        {
                            "version": "1d9cad9c5873097ea141ffc5da1e7921ce765aa8",
                            "lessThan": "513f6cf2e906a504b7ab0b62b2eea993a6f64558",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5efdd9122eff772eae2feae9f0fc0ec02d4846a3",
                            "lessThan": "9968fcf02cf6b0f78fbacf3f63e782162603855a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5efdd9122eff772eae2feae9f0fc0ec02d4846a3",
                            "lessThan": "6c13fcb7cf59ae65940da1dfea80144e42921e53",
                            "status": "affected",
                            "versionType": "git"
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                        {
                            "version": "5efdd9122eff772eae2feae9f0fc0ec02d4846a3",
                            "lessThan": "1c46673be93dd2954f44fe370fb4f2b8e6214224",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5efdd9122eff772eae2feae9f0fc0ec02d4846a3",
                            "lessThan": "b24edd5c191c2689c59d0509f0903f9487eb6317",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5efdd9122eff772eae2feae9f0fc0ec02d4846a3",
                            "lessThan": "d5a30fddfe2f2e540f6c43b59cf701809995faef",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.15.107",
                            "lessThan": "5.15.180",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/smb/client/fs_context.c"
                    ],
                    "versions": [
                        {
                            "version": "6.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.180",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.132",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.84",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.20",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.13.8",
                            "lessThanOrEqual": "6.13.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.14",
                            "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": "5.15.107",
                                    "versionEndExcluding": "5.15.180"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.1.132"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.6.84"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.12.20"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.13.8"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.14"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/513f6cf2e906a504b7ab0b62b2eea993a6f64558"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9968fcf02cf6b0f78fbacf3f63e782162603855a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6c13fcb7cf59ae65940da1dfea80144e42921e53"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1c46673be93dd2954f44fe370fb4f2b8e6214224"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b24edd5c191c2689c59d0509f0903f9487eb6317"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d5a30fddfe2f2e540f6c43b59cf701809995faef"
                }
            ],
            "title": "cifs: Fix integer overflow while processing closetimeo mount option",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        },
        "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": {
                                "id": "CVE-2025-21962",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2025-10-01T19:22:06.495160Z"
                            }
                        }
                    }
                ],
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "lang": "en",
                                "type": "CWE",
                                "cweId": "CWE-190",
                                "description": "CWE-190 Integer Overflow or Wraparound"
                            }
                        ]
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2025-10-01T19:26:32.531Z"
                }
            },
            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
                    }
                ],
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2025-11-03T19:40:04.218Z"
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}