{"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": "2026-10-06T08:44:32.912Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-06T08:44:32.912Z"}, "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": "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": "6.12.112", "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-rc4", "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": "6.12.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.18.54"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "7.2.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "7.3-rc4"}]}]}], "references": [{"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", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/wireless/ath/wcn36xx/dxe.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "3edabc965bcce49cbb2ec1c2b91f8a555a8ec8bd", "status": "affected", "version": "fdf21cc3714939dd4327f3d664fe5863d15ccb31", "versionType": "git"}, {"lessThan": "2bddc5d088cf430ecd913020472f1def32a36a3d", "status": "affected", "version": "fdf21cc3714939dd4327f3d664fe5863d15ccb31", "versionType": "git"}, {"lessThan": "c0df0878e9110909cf0bec6080d72d36401a0c89", "status": "affected", "version": "fdf21cc3714939dd4327f3d664fe5863d15ccb31", "versionType": "git"}, {"lessThan": "d9be5e75530772fc31637070d51e5717d6aeaa2a", "status": "affected", "version": "fdf21cc3714939dd4327f3d664fe5863d15ccb31", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/wireless/ath/wcn36xx/dxe.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.10"}, {"lessThan": "5.10", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.112", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.54", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.8", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3-rc4", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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."}], "id": "CVE-2026-98192", "lastModified": "2026-10-06T09:18:04.537", "metrics": {}, "published": "2026-10-06T09:18:04.537", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2bddc5d088cf430ecd913020472f1def32a36a3d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3edabc965bcce49cbb2ec1c2b91f8a555a8ec8bd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c0df0878e9110909cf0bec6080d72d36401a0c89"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d9be5e75530772fc31637070d51e5717d6aeaa2a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fdf21cc3714939dd4327f3d664fe5863d15ccb31,3edabc965bcce49cbb2ec1c2b91f8a555a8ec8bd)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fdf21cc3714939dd4327f3d664fe5863d15ccb31,2bddc5d088cf430ecd913020472f1def32a36a3d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fdf21cc3714939dd4327f3d664fe5863d15ccb31,c0df0878e9110909cf0bec6080d72d36401a0c89)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[fdf21cc3714939dd4327f3d664fe5863d15ccb31,d9be5e75530772fc31637070d51e5717d6aeaa2a)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.10"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.10)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.112,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.54,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.8,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc4,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-10-06T12:30:10.406987+00:00", "updated": "2026-10-06T14:00:19.063176+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-416"]}