{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-68242",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-12-16T13:41:40.263Z",
        "datePublished": "2025-12-16T14:21:19.558Z",
        "dateUpdated": "2026-05-11T21:49:34.952Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:49:34.952Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFS: Fix LTP test failures when timestamps are delegated\n\nThe utimes01 and utime06 tests fail when delegated timestamps are\nenabled, specifically in subtests that modify the atime and mtime\nfields using the 'nobody' user ID.\n\nThe problem can be reproduced as follow:\n\n# echo \"/media *(rw,no_root_squash,sync)\" >> /etc/exports\n# export -ra\n# mount -o rw,nfsvers=4.2 127.0.0.1:/media /tmpdir\n# cd /opt/ltp\n# ./runltp -d /tmpdir -s utimes01\n# ./runltp -d /tmpdir -s utime06\n\nThis issue occurs because nfs_setattr does not verify the inode's\nUID against the caller's fsuid when delegated timestamps are\npermitted for the inode.\n\nThis patch adds the UID check and if it does not match then the\nrequest is sent to the server for permission checking."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/nfs/inode.c"
                    ],
                    "versions": [
                        {
                            "version": "e12912d94137ab36ee704a91f465ff15c8b423da",
                            "lessThan": "b2e4cda71ed062c87573b016d2d956a62f4258ed",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e12912d94137ab36ee704a91f465ff15c8b423da",
                            "lessThan": "0e9be902041c6b9f0ed4b72764187eed1067a42f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e12912d94137ab36ee704a91f465ff15c8b423da",
                            "lessThan": "b623390045a81fc559decb9bfeb79319721d3dfb",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/nfs/inode.c"
                    ],
                    "versions": [
                        {
                            "version": "6.11",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.11",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.59",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17.9",
                            "lessThanOrEqual": "6.17.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18",
                            "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": "6.11",
                                    "versionEndExcluding": "6.12.59"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.11",
                                    "versionEndExcluding": "6.17.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.11",
                                    "versionEndExcluding": "6.18"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/b2e4cda71ed062c87573b016d2d956a62f4258ed"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0e9be902041c6b9f0ed4b72764187eed1067a42f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b623390045a81fc559decb9bfeb79319721d3dfb"
                }
            ],
            "title": "NFS: Fix LTP test failures when timestamps are delegated",
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}