{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-93804",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-18T17:59:28.790Z",
        "datePublished": "2026-09-24T16:02:38.223Z",
        "dateUpdated": "2026-10-21T12:52:39.730Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:52:39.730Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: ibss: wait for in-flight TX on disconnect\n\nWhile leaving an IBSS in ieee80211_ibss_disconnect() mac80211 flushes\nstations, turns the carrier off and immediately tells the driver to\nleave as well. While there may be synchronize_net() in station flush\nand in this code later, packets can still be transmitted due to\ncross-CPU race conditions after carrier off is set.\nTherefore, it's possible for a race to happen where a TX to the\ndriver occurs while or after telling it to leave the IBSS. This can\nbe confusing to drivers, and in the case of iwlwifi leads to an\nattempt to use invalid queues.\n\nMove netif_carrier_off() to occur before sta_info_flush() during\nIBSS disconnect, and add synchronize_net() if flushing didn't,\nso that the synchronize_net() always happens between turning the\ncarrier off and telling the driver, avoiding this race."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/mac80211/ibss.c"
                    ],
                    "versions": [
                        {
                            "version": "86a2ea4134b48f6371103cfceb521bf2d2bf76cd",
                            "lessThan": "8e4a07ed82bae5d13525770880dc6dfd27f9bccd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "86a2ea4134b48f6371103cfceb521bf2d2bf76cd",
                            "lessThan": "20a3fb5e1a95caa34896853ca17a50d21c754969",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "86a2ea4134b48f6371103cfceb521bf2d2bf76cd",
                            "lessThan": "b3451e6971248250312ad32dd7f63cc9f0a925f5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "86a2ea4134b48f6371103cfceb521bf2d2bf76cd",
                            "lessThan": "d0e69d9afa59b93c30294eba89b1f15f69e91105",
                            "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/ibss.c"
                    ],
                    "versions": [
                        {
                            "version": "3.3",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.3",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.111",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.53",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "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": "3.3",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.3",
                                    "versionEndExcluding": "6.12.111"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.3",
                                    "versionEndExcluding": "6.18.53"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.3",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/8e4a07ed82bae5d13525770880dc6dfd27f9bccd"
                },
                {
                    "url": "https://git.kernel.org/stable/c/20a3fb5e1a95caa34896853ca17a50d21c754969"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b3451e6971248250312ad32dd7f63cc9f0a925f5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d0e69d9afa59b93c30294eba89b1f15f69e91105"
                }
            ],
            "title": "wifi: mac80211: ibss: wait for in-flight TX on disconnect",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}