{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-54087",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-12-24T13:02:52.515Z",
        "datePublished": "2025-12-24T13:06:17.555Z",
        "dateUpdated": "2026-05-11T19:55:14.333Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:55:14.333Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nubi: Fix possible null-ptr-deref in ubi_free_volume()\n\nIt willl cause null-ptr-deref in the following case:\n\nuif_init()\n  ubi_add_volume()\n    cdev_add() -> if it fails, call kill_volumes()\n    device_register()\n\nkill_volumes() -> if ubi_add_volume() fails call this function\n  ubi_free_volume()\n    cdev_del()\n    device_unregister() -> trying to delete a not added device,\n\t\t\t   it causes null-ptr-deref\n\nSo in ubi_free_volume(), it delete devices whether they are added\nor not, it will causes null-ptr-deref.\n\nHandle the error case whlie calling ubi_add_volume() to fix this\nproblem. If add volume fails, set the corresponding vol to null,\nso it can not be accessed in kill_volumes() and release the\nresource in ubi_add_volume() error path."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/mtd/ubi/build.c",
                        "drivers/mtd/ubi/vmt.c"
                    ],
                    "versions": [
                        {
                            "version": "801c135ce73d5df1caf3eca35b66a10824ae0707",
                            "lessThan": "5558bcf1c58720ca6e9d6198d921cb3aa337f038",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "801c135ce73d5df1caf3eca35b66a10824ae0707",
                            "lessThan": "45b2c5ca4d2edae70f19fdb086bd927840c4c309",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "801c135ce73d5df1caf3eca35b66a10824ae0707",
                            "lessThan": "234c53e57424992e657e6f4acc00d3df0983176f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "801c135ce73d5df1caf3eca35b66a10824ae0707",
                            "lessThan": "fcbc795abe7897da4b5d2a6ab5010e36774b00c2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "801c135ce73d5df1caf3eca35b66a10824ae0707",
                            "lessThan": "5ec4c8aca5a221756a9007deadfea92795319fee",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "801c135ce73d5df1caf3eca35b66a10824ae0707",
                            "lessThan": "2ea7195b195009ecf0046e55361f393ba96d02db",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "801c135ce73d5df1caf3eca35b66a10824ae0707",
                            "lessThan": "9eccdb0760cbcb4427b5303a83a3007de998af51",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "801c135ce73d5df1caf3eca35b66a10824ae0707",
                            "lessThan": "c15859bfd326c10230f09cb48a17f8a35f190342",
                            "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/mtd/ubi/build.c",
                        "drivers/mtd/ubi/vmt.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.22",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.22",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.308",
                            "lessThanOrEqual": "4.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.276",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.235",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.173",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.100",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.18",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2.5",
                            "lessThanOrEqual": "6.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.3",
                            "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": "2.6.22",
                                    "versionEndExcluding": "4.14.308"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.22",
                                    "versionEndExcluding": "4.19.276"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.22",
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                                },
                                {
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                                    "versionStartIncluding": "2.6.22",
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                                {
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                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.22",
                                    "versionEndExcluding": "6.1.18"
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.22",
                                    "versionEndExcluding": "6.3"
                                }
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                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/5558bcf1c58720ca6e9d6198d921cb3aa337f038"
                },
                {
                    "url": "https://git.kernel.org/stable/c/45b2c5ca4d2edae70f19fdb086bd927840c4c309"
                },
                {
                    "url": "https://git.kernel.org/stable/c/234c53e57424992e657e6f4acc00d3df0983176f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fcbc795abe7897da4b5d2a6ab5010e36774b00c2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5ec4c8aca5a221756a9007deadfea92795319fee"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2ea7195b195009ecf0046e55361f393ba96d02db"
                },
                {
                    "url": "https://git.kernel.org/stable/c/9eccdb0760cbcb4427b5303a83a3007de998af51"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c15859bfd326c10230f09cb48a17f8a35f190342"
                }
            ],
            "title": "ubi: Fix possible null-ptr-deref in ubi_free_volume()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}