{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2022-49876",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-05-01T14:05:17.238Z",
        "datePublished": "2025-05-01T14:10:25.040Z",
        "dateUpdated": "2026-05-11T19:08:27.233Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:08:27.233Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: fix general-protection-fault in ieee80211_subif_start_xmit()\n\nWhen device is running and the interface status is changed, the gpf issue\nis triggered. The problem triggering process is as follows:\nThread A:                           Thread B\nieee80211_runtime_change_iftype()   process_one_work()\n    ...                                 ...\n    ieee80211_do_stop()                 ...\n    ...                                 ...\n        sdata->bss = NULL               ...\n        ...                             ieee80211_subif_start_xmit()\n                                            ieee80211_multicast_to_unicast\n                                    //!sdata->bss->multicast_to_unicast\n                                      cause gpf issue\n\nWhen the interface status is changed, the sending queue continues to send\npackets. After the bss is set to NULL, the bss is accessed. As a result,\nthis causes a general-protection-fault issue.\n\nThe following is the stack information:\ngeneral protection fault, probably for non-canonical address\n0xdffffc000000002f: 0000 [#1] PREEMPT SMP KASAN\nKASAN: null-ptr-deref in range [0x0000000000000178-0x000000000000017f]\nWorkqueue: mld mld_ifc_work\nRIP: 0010:ieee80211_subif_start_xmit+0x25b/0x1310\nCall Trace:\n<TASK>\ndev_hard_start_xmit+0x1be/0x990\n__dev_queue_xmit+0x2c9a/0x3b60\nip6_finish_output2+0xf92/0x1520\nip6_finish_output+0x6af/0x11e0\nip6_output+0x1ed/0x540\nmld_sendpack+0xa09/0xe70\nmld_ifc_work+0x71c/0xdb0\nprocess_one_work+0x9bf/0x1710\nworker_thread+0x665/0x1080\nkthread+0x2e4/0x3a0\nret_from_fork+0x1f/0x30\n</TASK>"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/mac80211/tx.c"
                    ],
                    "versions": [
                        {
                            "version": "f856373e2f31ffd340e47e2b00027bd4070f74b3",
                            "lessThan": "03eb68c72cee249aeb7af7d04a83c033aca3d6d9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f856373e2f31ffd340e47e2b00027bd4070f74b3",
                            "lessThan": "780854186946e0de2be192ee7fa5125666533b3a",
                            "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/tx.c"
                    ],
                    "versions": [
                        {
                            "version": "5.19",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.19",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.0.9",
                            "lessThanOrEqual": "6.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1",
                            "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": "5.19",
                                    "versionEndExcluding": "6.0.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.19",
                                    "versionEndExcluding": "6.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/03eb68c72cee249aeb7af7d04a83c033aca3d6d9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/780854186946e0de2be192ee7fa5125666533b3a"
                }
            ],
            "title": "wifi: mac80211: fix general-protection-fault in ieee80211_subif_start_xmit()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        },
        "adp": [
            {
                "problemTypes": [
                    {
                        "descriptions": [
                            {
                                "type": "CWE",
                                "cweId": "CWE-476",
                                "lang": "en",
                                "description": "CWE-476 NULL Pointer Dereference"
                            }
                        ]
                    }
                ],
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 5.5,
                            "attackVector": "LOCAL",
                            "baseSeverity": "MEDIUM",
                            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                            "integrityImpact": "NONE",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "LOW",
                            "confidentialityImpact": "NONE"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2025-10-01T16:03:03.883481Z",
                                "id": "CVE-2022-49876",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2025-10-01T16:03:06.241Z"
                }
            }
        ]
    }
}