{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-50481",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-10-04T15:13:33.468Z",
        "datePublished": "2025-10-04T15:16:40.374Z",
        "dateUpdated": "2026-05-11T19:20:19.702Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:20:19.702Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter()\n\nIf device_register() fails in cxl_register_afu|adapter(), the device\nis not added, device_unregister() can not be called in the error path,\notherwise it will cause a null-ptr-deref because of removing not added\ndevice.\n\nAs comment of device_register() says, it should use put_device() to give\nup the reference in the error path. So split device_unregister() into\ndevice_del() and put_device(), then goes to put dev when register fails."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/misc/cxl/guest.c"
                    ],
                    "versions": [
                        {
                            "version": "14baf4d9c739e6e69150512d2eb23c71fffcc192",
                            "lessThan": "96fba6fb95bdede80583c262ac185da09661f264",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "14baf4d9c739e6e69150512d2eb23c71fffcc192",
                            "lessThan": "1ae581696b7a799afa39a664c4b721569643f58a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "14baf4d9c739e6e69150512d2eb23c71fffcc192",
                            "lessThan": "d775a1da5a52b4f4bb02f2707ba420d1bec48dbb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "14baf4d9c739e6e69150512d2eb23c71fffcc192",
                            "lessThan": "60b2ed21a65f3f5318666ccd765c3507991370cf",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "14baf4d9c739e6e69150512d2eb23c71fffcc192",
                            "lessThan": "170e8c2d2b61e15e7f7cfeded81bc1e959a15ed8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "14baf4d9c739e6e69150512d2eb23c71fffcc192",
                            "lessThan": "e5021bbf11b024cc65ea1e84c377df484183be4b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "14baf4d9c739e6e69150512d2eb23c71fffcc192",
                            "lessThan": "b32559ee4e6667c5c3daf4ec5454c277d1f255d2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "14baf4d9c739e6e69150512d2eb23c71fffcc192",
                            "lessThan": "ab44c182353be101c3be9465e1d15d42130c53c4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "14baf4d9c739e6e69150512d2eb23c71fffcc192",
                            "lessThan": "61c80d1c3833e196256fb060382db94f24d3d9a7",
                            "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/misc/cxl/guest.c"
                    ],
                    "versions": [
                        {
                            "version": "4.6",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.6",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.9.337",
                            "lessThanOrEqual": "4.9.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.303",
                            "lessThanOrEqual": "4.14.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.270",
                            "lessThanOrEqual": "4.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.229",
                            "lessThanOrEqual": "5.4.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.163",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.86",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.0.16",
                            "lessThanOrEqual": "6.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.2",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2",
                            "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": "4.6",
                                    "versionEndExcluding": "4.9.337"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "4.14.303"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "4.19.270"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "5.4.229"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "5.10.163"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "5.15.86"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "6.0.16"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "6.1.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.6",
                                    "versionEndExcluding": "6.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/96fba6fb95bdede80583c262ac185da09661f264"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1ae581696b7a799afa39a664c4b721569643f58a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d775a1da5a52b4f4bb02f2707ba420d1bec48dbb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/60b2ed21a65f3f5318666ccd765c3507991370cf"
                },
                {
                    "url": "https://git.kernel.org/stable/c/170e8c2d2b61e15e7f7cfeded81bc1e959a15ed8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e5021bbf11b024cc65ea1e84c377df484183be4b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b32559ee4e6667c5c3daf4ec5454c277d1f255d2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ab44c182353be101c3be9465e1d15d42130c53c4"
                },
                {
                    "url": "https://git.kernel.org/stable/c/61c80d1c3833e196256fb060382db94f24d3d9a7"
                }
            ],
            "title": "cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}