{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-43063",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-01T14:12:55.981Z",
        "datePublished": "2026-05-05T15:23:24.034Z",
        "dateUpdated": "2026-08-05T12:25:41.403Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-05T12:25:41.403Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: don't irele after failing to iget in xfs_attri_recover_work\n\nxlog_recovery_iget* never set @ip to a valid pointer if they return\nan error, so this irele will walk off a dangling pointer.  Fix that."
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                        "baseScore": 7.8,
                        "baseSeverity": "HIGH"
                    },
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "AV:L - Vulnerable code is reached during local XFS filesystem mount/log recovery from a block device or filesystem image, not through network input. A crafted XFS image or dirty log is the plausible attack vehicle.\nAC:L - No race or hard-to-control timing is required; a crafted recoverable XFS log item that makes inode lookup fail deterministically reaches the bad `xfs_irele` path. The needed log state is attacker-controlled in the malicious filesystem image.\nPR:N - The direct mount path requires `CAP_SYS_ADMIN` because XFS is not `FS_USERNS_MOUNT`, but an attacker can supply a malicious filesystem image for a privileged user or automounter to mount. In that highest reasonable scenario, the attacker needs no privileges on the target.\nUI:R - Exploitation requires the crafted XFS filesystem to be mounted or recovered by a user, administrator, or mounting service. No further user action is needed once recovery starts.\nS:U - The vulnerability corrupts kernel state within the same operating-system security authority. It is not a VM escape or other cross-scope boundary violation.\nC:H - The bug releases an uninitialized or dangling inode pointer during recovery, which is kernel memory corruption/use-after-free class behavior. Following the higher-severity rule, this is treated as potentially enabling kernel memory disclosure.\nI:H - The invalid inode release can corrupt kernel object lifetime/refcounts and may be exploitable beyond a simple crash. Following the higher-severity rule for dangling pointer memory corruption, integrity impact is High.\nA:H - At minimum, calling `xfs_irele` on an invalid or dangling pointer can crash or BUG the kernel during mount recovery. This gives high availability impact."
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/xfs/xfs_attr_item.c"
                    ],
                    "versions": [
                        {
                            "version": "ae673f534a30976ce5e709c4535a59c12b786ef3",
                            "lessThan": "b5c5a50c2f513d4a13a6763564a07b470e69cc5a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ae673f534a30976ce5e709c4535a59c12b786ef3",
                            "lessThan": "a1a5df1038f0b3c560d204270373621a4e622808",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ae673f534a30976ce5e709c4535a59c12b786ef3",
                            "lessThan": "40082d08b638485cbaa543dc8087a3d1844d6f08",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ae673f534a30976ce5e709c4535a59c12b786ef3",
                            "lessThan": "70685c291ef82269180758130394ecdc4496b52c",
                            "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_attr_item.c"
                    ],
                    "versions": [
                        {
                            "version": "6.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.10",
                            "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": "6.10",
                                    "versionEndExcluding": "6.12.80"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.10",
                                    "versionEndExcluding": "6.18.21"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.10",
                                    "versionEndExcluding": "6.19.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.10",
                                    "versionEndExcluding": "7.0"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/b5c5a50c2f513d4a13a6763564a07b470e69cc5a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a1a5df1038f0b3c560d204270373621a4e622808"
                },
                {
                    "url": "https://git.kernel.org/stable/c/40082d08b638485cbaa543dc8087a3d1844d6f08"
                },
                {
                    "url": "https://git.kernel.org/stable/c/70685c291ef82269180758130394ecdc4496b52c"
                }
            ],
            "title": "xfs: don't irele after failing to iget in xfs_attri_recover_work",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}