{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-38008",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T04:51:23.977Z",
        "datePublished": "2025-06-18T09:28:19.358Z",
        "dateUpdated": "2026-05-11T21:19:31.804Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:19:31.804Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/page_alloc: fix race condition in unaccepted memory handling\n\nThe page allocator tracks the number of zones that have unaccepted memory\nusing static_branch_enc/dec() and uses that static branch in hot paths to\ndetermine if it needs to deal with unaccepted memory.\n\nBorislav and Thomas pointed out that the tracking is racy: operations on\nstatic_branch are not serialized against adding/removing unaccepted pages\nto/from the zone.\n\nSanity checks inside static_branch machinery detects it:\n\nWARNING: CPU: 0 PID: 10 at kernel/jump_label.c:276 __static_key_slow_dec_cpuslocked+0x8e/0xa0\n\nThe comment around the WARN() explains the problem:\n\n\t/*\n\t * Warn about the '-1' case though; since that means a\n\t * decrement is concurrent with a first (0->1) increment. IOW\n\t * people are trying to disable something that wasn't yet fully\n\t * enabled. This suggests an ordering problem on the user side.\n\t */\n\nThe effect of this static_branch optimization is only visible on\nmicrobenchmark.\n\nInstead of adding more complexity around it, remove it altogether."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "mm/internal.h",
                        "mm/mm_init.c",
                        "mm/page_alloc.c"
                    ],
                    "versions": [
                        {
                            "version": "dcdfdd40fa82b6704d2841938e5c8ec3051eb0d6",
                            "lessThan": "98fdd2f612e949c652693f6df00442c81037776d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dcdfdd40fa82b6704d2841938e5c8ec3051eb0d6",
                            "lessThan": "74953f93f47a45296cc2a3fd04e2a3202ff3fa53",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dcdfdd40fa82b6704d2841938e5c8ec3051eb0d6",
                            "lessThan": "71dda1cb10702dc2859f00eb789b0502de2176a9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "dcdfdd40fa82b6704d2841938e5c8ec3051eb0d6",
                            "lessThan": "fefc075182275057ce607effaa3daa9e6e3bdc73",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "mm/internal.h",
                        "mm/mm_init.c",
                        "mm/page_alloc.c"
                    ],
                    "versions": [
                        {
                            "version": "6.5",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.5",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.92",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.30",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.14.8",
                            "lessThanOrEqual": "6.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.15",
                            "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": "6.5",
                                    "versionEndExcluding": "6.6.92"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.5",
                                    "versionEndExcluding": "6.12.30"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.5",
                                    "versionEndExcluding": "6.14.8"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.5",
                                    "versionEndExcluding": "6.15"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/98fdd2f612e949c652693f6df00442c81037776d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/74953f93f47a45296cc2a3fd04e2a3202ff3fa53"
                },
                {
                    "url": "https://git.kernel.org/stable/c/71dda1cb10702dc2859f00eb789b0502de2176a9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fefc075182275057ce607effaa3daa9e6e3bdc73"
                }
            ],
            "title": "mm/page_alloc: fix race condition in unaccepted memory handling",
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                "engine": "bippy-1.2.0"
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}