{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-49828",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-05-01T14:05:17.228Z",
        "datePublished": "2025-05-01T14:09:47.443Z",
        "dateUpdated": "2026-05-11T19:07:33.531Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:07:33.531Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhugetlbfs: don't delete error page from pagecache\n\nThis change is very similar to the change that was made for shmem [1], and\nit solves the same problem but for HugeTLBFS instead.\n\nCurrently, when poison is found in a HugeTLB page, the page is removed\nfrom the page cache.  That means that attempting to map or read that\nhugepage in the future will result in a new hugepage being allocated\ninstead of notifying the user that the page was poisoned.  As [1] states,\nthis is effectively memory corruption.\n\nThe fix is to leave the page in the page cache.  If the user attempts to\nuse a poisoned HugeTLB page with a syscall, the syscall will fail with\nEIO, the same error code that shmem uses.  For attempts to map the page,\nthe thread will get a BUS_MCEERR_AR SIGBUS.\n\n[1]: commit a76054266661 (\"mm: shmem: don't truncate page if memory failure happens\")"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/hugetlbfs/inode.c",
                        "mm/hugetlb.c",
                        "mm/memory-failure.c"
                    ],
                    "versions": [
                        {
                            "version": "78bb920344b8a6f04b79a7c254041723b931c94f",
                            "lessThan": "30571f28bb35c826219971c63bcf60d2517112ed",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "78bb920344b8a6f04b79a7c254041723b931c94f",
                            "lessThan": "ec667443b2dbc6cdbbac4073e51a17733158ec6a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "78bb920344b8a6f04b79a7c254041723b931c94f",
                            "lessThan": "8625147cafaa9ba74713d682f5185eb62cb2aedb",
                            "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/hugetlbfs/inode.c",
                        "mm/hugetlb.c",
                        "mm/memory-failure.c"
                    ],
                    "versions": [
                        {
                            "version": "4.13",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.13",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.80",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.0.10",
                            "lessThanOrEqual": "6.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1",
                            "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": "4.13",
                                    "versionEndExcluding": "5.15.80"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.13",
                                    "versionEndExcluding": "6.0.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.13",
                                    "versionEndExcluding": "6.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/30571f28bb35c826219971c63bcf60d2517112ed"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ec667443b2dbc6cdbbac4073e51a17733158ec6a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8625147cafaa9ba74713d682f5185eb62cb2aedb"
                }
            ],
            "title": "hugetlbfs: don't delete error page from pagecache",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}