{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-21817",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-12-29T08:45:45.774Z",
        "datePublished": "2025-02-27T20:04:15.988Z",
        "dateUpdated": "2026-07-18T15:00:43.247Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-07-18T15:00:43.247Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: mark GFP_NOIO around sysfs ->store()\n\nsysfs ->store is called with queue freezed, meantime we have several\n->store() callbacks(update_nr_requests, wbt, scheduler) to allocate\nmemory with GFP_KERNEL which may run into direct reclaim code path,\nthen potential deadlock can be caused.\n\nFix the issue by marking NOIO around sysfs ->store()"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "block/blk-sysfs.c"
                    ],
                    "versions": [
                        {
                            "version": "8985da5481562e96b95e94ed8e5cc9b6565eb82b",
                            "lessThan": "2566ce907e5d5db8a039647208e029ce559baa31",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c99f66e4084a62a2cc401c4704a84328aeddc9ec",
                            "lessThan": "7c0be4ead1f8f5f8be0803f347de0de81e3b8e1c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1645cd7fd42c236c952e9228badcac4fea1829ea",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.12.96",
                            "lessThan": "6.13",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "block/blk-sysfs.c"
                    ],
                    "versions": [
                        {
                            "version": "6.13.2",
                            "lessThan": "6.13.3",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.13.2",
                                    "versionEndExcluding": "6.13.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12.96"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/2566ce907e5d5db8a039647208e029ce559baa31"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7c0be4ead1f8f5f8be0803f347de0de81e3b8e1c"
                }
            ],
            "title": "block: mark GFP_NOIO around sysfs ->store()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}