{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98192",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.323Z",
        "datePublished": "2026-10-06T08:44:32.912Z",
        "dateUpdated": "2026-10-21T12:54:50.525Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:54:50.525Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wcn36xx: Fix potential use-after-free in TX ack timer teardown\n\nwcn36xx_dxe_deinit() tears down the TX ack timer with timer_delete(),\nwhich only dequeues the timer and does not wait for a callback that is\nalready executing; the preceding free_irq() calls synchronize the\ninterrupt handlers only. The callback, wcn36xx_dxe_tx_timer(), can\ntherefore be running past the teardown and use the wcn freed along\nwith the ieee80211_hw in wcn36xx_remove(): it takes wcn->dxe_lock,\nreads wcn->tx_ack_skb and passes wcn->hw to\nieee80211_tx_status_irqsafe().\n\nFix this by using timer_shutdown_sync(), which waits for a running\ncallback and also prevents the timer from being rearmed again. The\ntimer is set up again by wcn36xx_dxe_init() on the next start, so the\nstart/stop cycle is unaffected.\n\nThis issue was found by an in-house static analysis tool."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/wireless/ath/wcn36xx/dxe.c"
                    ],
                    "versions": [
                        {
                            "version": "fdf21cc3714939dd4327f3d664fe5863d15ccb31",
                            "lessThan": "15e59e377facc87ce82228279d88efaa89fdbca5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fdf21cc3714939dd4327f3d664fe5863d15ccb31",
                            "lessThan": "3edabc965bcce49cbb2ec1c2b91f8a555a8ec8bd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fdf21cc3714939dd4327f3d664fe5863d15ccb31",
                            "lessThan": "2bddc5d088cf430ecd913020472f1def32a36a3d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fdf21cc3714939dd4327f3d664fe5863d15ccb31",
                            "lessThan": "c0df0878e9110909cf0bec6080d72d36401a0c89",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fdf21cc3714939dd4327f3d664fe5863d15ccb31",
                            "lessThan": "d9be5e75530772fc31637070d51e5717d6aeaa2a",
                            "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/net/wireless/ath/wcn36xx/dxe.c"
                    ],
                    "versions": [
                        {
                            "version": "5.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.10",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.112",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.54",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.8",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "5.10",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "6.12.112"
                                },
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                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "6.18.54"
                                },
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
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                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "7.3"
                                }
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                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/15e59e377facc87ce82228279d88efaa89fdbca5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3edabc965bcce49cbb2ec1c2b91f8a555a8ec8bd"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2bddc5d088cf430ecd913020472f1def32a36a3d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c0df0878e9110909cf0bec6080d72d36401a0c89"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d9be5e75530772fc31637070d51e5717d6aeaa2a"
                }
            ],
            "title": "wifi: wcn36xx: Fix potential use-after-free in TX ack timer teardown",
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}