{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-40194",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T07:20:57.178Z",
        "datePublished": "2025-11-12T21:56:32.025Z",
        "dateUpdated": "2026-05-11T21:44:34.728Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T21:44:34.728Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()\n\nThe cpufreq_cpu_put() call in update_qos_request() takes place too early\nbecause the latter subsequently calls freq_qos_update_request() that\nindirectly accesses the policy object in question through the QoS request\nobject passed to it.\n\nFortunately, update_qos_request() is called under intel_pstate_driver_lock,\nso this issue does not matter for changing the intel_pstate operation\nmode, but it theoretically can cause a crash to occur on CPU device hot\nremoval (which currently can only happen in virt, but it is formally\nsupported nevertheless).\n\nAddress this issue by modifying update_qos_request() to drop the\nreference to the policy later."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/cpufreq/intel_pstate.c"
                    ],
                    "versions": [
                        {
                            "version": "da5c504c7aae96db68c4b38e2564a88e91842d89",
                            "lessThan": "15ac9579ebdaf22a37d7f60b3a8efc1029732ef9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "da5c504c7aae96db68c4b38e2564a88e91842d89",
                            "lessThan": "bc26564bcc659beb6d977cd6eb394041ec2f2851",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "da5c504c7aae96db68c4b38e2564a88e91842d89",
                            "lessThan": "ad4e8f9bdbef11a19b7cb93e7f313bf59bdcc3b4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "da5c504c7aae96db68c4b38e2564a88e91842d89",
                            "lessThan": "0a58d3e77b22b087a57831c87cafd360e144a5bd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "da5c504c7aae96db68c4b38e2564a88e91842d89",
                            "lessThan": "69a18ff6c60e8e113420f15355fad862cb45d38e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "da5c504c7aae96db68c4b38e2564a88e91842d89",
                            "lessThan": "ba63d4e9857a72a89e71a4eff9f2cc8c283e94c3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "da5c504c7aae96db68c4b38e2564a88e91842d89",
                            "lessThan": "57e4a6aadf12578b96a038373cffd54b3a58b092",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "da5c504c7aae96db68c4b38e2564a88e91842d89",
                            "lessThan": "69e5d50fcf4093fb3f9f41c4f931f12c2ca8c467",
                            "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/cpufreq/intel_pstate.c"
                    ],
                    "versions": [
                        {
                            "version": "5.4",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.4",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.301",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.246",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.195",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.157",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.113",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.54",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17.4",
                            "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": "5.4",
                                    "versionEndExcluding": "5.4.301"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "5.10.246"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "5.15.195"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "6.1.157"
                                },
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                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "6.6.113"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
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                                    "versionStartIncluding": "5.4",
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                                },
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.4",
                                    "versionEndExcluding": "6.18"
                                }
                            ]
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                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/15ac9579ebdaf22a37d7f60b3a8efc1029732ef9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bc26564bcc659beb6d977cd6eb394041ec2f2851"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ad4e8f9bdbef11a19b7cb93e7f313bf59bdcc3b4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0a58d3e77b22b087a57831c87cafd360e144a5bd"
                },
                {
                    "url": "https://git.kernel.org/stable/c/69a18ff6c60e8e113420f15355fad862cb45d38e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ba63d4e9857a72a89e71a4eff9f2cc8c283e94c3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/57e4a6aadf12578b96a038373cffd54b3a58b092"
                },
                {
                    "url": "https://git.kernel.org/stable/c/69e5d50fcf4093fb3f9f41c4f931f12c2ca8c467"
                }
            ],
            "title": "cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()",
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}