{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2021-47225",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-04-10T18:59:19.529Z",
        "datePublished": "2024-05-21T14:19:30.212Z",
        "dateUpdated": "2024-08-04T05:32:07.429Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2024-05-29T05:04:13.274Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmac80211: fix deadlock in AP/VLAN handling\n\nSyzbot reports that when you have AP_VLAN interfaces that are up\nand close the AP interface they belong to, we get a deadlock. No\nsurprise - since we dev_close() them with the wiphy mutex held,\nwhich goes back into the netdev notifier in cfg80211 and tries to\nacquire the wiphy mutex there.\n\nTo fix this, we need to do two things:\n 1) prevent changing iftype while AP_VLANs are up, we can't\n    easily fix this case since cfg80211 already calls us with\n    the wiphy mutex held, but change_interface() is relatively\n    rare in drivers anyway, so changing iftype isn't used much\n    (and userspace has to fall back to down/change/up anyway)\n 2) pull the dev_close() loop over VLANs out of the wiphy mutex\n    section in the normal stop case"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/mac80211/iface.c"
                    ],
                    "versions": [
                        {
                            "version": "a05829a7222e",
                            "lessThan": "8043903fcb72",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a05829a7222e",
                            "lessThan": "d5befb224edb",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/mac80211/iface.c"
                    ],
                    "versions": [
                        {
                            "version": "5.12",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.12",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.12.13",
                            "lessThanOrEqual": "5.12.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "5.13",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/8043903fcb72f545c52e3ec74d6fd82ef79ce7c5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d5befb224edbe53056c2c18999d630dafb4a08b9"
                }
            ],
            "title": "mac80211: fix deadlock in AP/VLAN handling",
            "x_generator": {
                "engine": "bippy-a5840b7849dd"
            }
        },
        "adp": [
            {
                "title": "CISA ADP Vulnrichment",
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2021-47225",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2024-05-31T18:48:57.781631Z"
                            }
                        }
                    }
                ],
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-06-04T17:13:22.207Z"
                }
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                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-04T05:32:07.429Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://git.kernel.org/stable/c/8043903fcb72f545c52e3ec74d6fd82ef79ce7c5",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://git.kernel.org/stable/c/d5befb224edbe53056c2c18999d630dafb4a08b9",
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}