{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-31455",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-03-09T15:48:24.092Z",
        "datePublished": "2026-04-22T13:53:48.914Z",
        "dateUpdated": "2026-05-11T22:09:03.235Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T22:09:03.235Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: stop reclaim before pushing AIL during unmount\n\nThe unmount sequence in xfs_unmount_flush_inodes() pushed the AIL while\nbackground reclaim and inodegc are still running. This is broken\nindependently of any use-after-free issues - background reclaim and\ninodegc should not be running while the AIL is being pushed during\nunmount, as inodegc can dirty and insert inodes into the AIL during the\nflush, and background reclaim can race to abort and free dirty inodes.\n\nReorder xfs_unmount_flush_inodes() to stop inodegc and cancel background\nreclaim before pushing the AIL. Stop inodegc before cancelling\nm_reclaim_work because the inodegc worker can re-queue m_reclaim_work\nvia xfs_inodegc_set_reclaimable."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/xfs/xfs_mount.c"
                    ],
                    "versions": [
                        {
                            "version": "90c60e16401248a4900f3f9387f563d0178dcf34",
                            "lessThan": "e6cc490048f78b009259a5f032acead9f789c34c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "90c60e16401248a4900f3f9387f563d0178dcf34",
                            "lessThan": "239d734c00644072862fa833805c4471573b1445",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "90c60e16401248a4900f3f9387f563d0178dcf34",
                            "lessThan": "bda27fc0b4eb3a425d9a18475c4cb94fbe862c60",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "90c60e16401248a4900f3f9387f563d0178dcf34",
                            "lessThan": "d38135af04a3ad8a585c899d176efc8e97853115",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "90c60e16401248a4900f3f9387f563d0178dcf34",
                            "lessThan": "a89434a6188d8430ea31120da96e3e4cefb58686",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "90c60e16401248a4900f3f9387f563d0178dcf34",
                            "lessThan": "8147e304d7d32fd5c3e943babc296ce2873dc279",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "90c60e16401248a4900f3f9387f563d0178dcf34",
                            "lessThan": "558e3275d8a3b101be18a7fe7d1634053e9d9b07",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "90c60e16401248a4900f3f9387f563d0178dcf34",
                            "lessThan": "4f24a767e3d64a5f58c595b5c29b6063a201f1e3",
                            "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/xfs/xfs_mount.c"
                    ],
                    "versions": [
                        {
                            "version": "5.9",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.9",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.253",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.203",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.168",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.131",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.80",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.21",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.11",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "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": "5.9",
                                    "versionEndExcluding": "5.10.253"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.9",
                                    "versionEndExcluding": "5.15.203"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.9",
                                    "versionEndExcluding": "6.1.168"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.9",
                                    "versionEndExcluding": "6.6.131"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.9",
                                    "versionEndExcluding": "6.12.80"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.9",
                                    "versionEndExcluding": "6.18.21"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.9",
                                    "versionEndExcluding": "6.19.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.9",
                                    "versionEndExcluding": "7.0"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/e6cc490048f78b009259a5f032acead9f789c34c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/239d734c00644072862fa833805c4471573b1445"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bda27fc0b4eb3a425d9a18475c4cb94fbe862c60"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d38135af04a3ad8a585c899d176efc8e97853115"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a89434a6188d8430ea31120da96e3e4cefb58686"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8147e304d7d32fd5c3e943babc296ce2873dc279"
                },
                {
                    "url": "https://git.kernel.org/stable/c/558e3275d8a3b101be18a7fe7d1634053e9d9b07"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4f24a767e3d64a5f58c595b5c29b6063a201f1e3"
                }
            ],
            "title": "xfs: stop reclaim before pushing AIL during unmount",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}