USB: dwc2: shut down wakeup timer before freeing HCD state
In the Linux kernel, the following vulnerability has been resolved: USB: dwc2: shut down wakeup timer before freeing HCD state dwc2_wakeup_detected() accesses the DWC2 host state and can rearm the wakeup timer. dwc2_hcd_free() currently deletes the timer only after freeing host-owned state, and timer_delete() does not synchronize a callback or prevent it from being queued again. Stop and shut down the timer in dwc2_hcd_release(), before the HCD resources are freed. This covers both the HCD initialization error path and normal HCD removal.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.15.224, 6.1.191, 6.12.113, 6.18.56, 6.6.160, 7.2.10
- CVEs
- CVE-2026-98762
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 13:33 UTC · Revision 1
Source evidence
USB: dwc2: shut down wakeup timer before freeing HCD state
core-osv · Original sourcePublished 18 Oct 2026, 15:47 UTC
In the Linux kernel, the following vulnerability has been resolved: USB: dwc2: shut down wakeup timer before freeing HCD state dwc2_wakeup_detected() accesses the DWC2 host state and can rearm the wakeup timer. dwc2_hcd_free() currently deletes the timer only after freeing host-owned state, and timer_delete() does not synchronize a callback or prevent it from being queued again. Stop and shut down the timer in dwc2_hcd_release(), before the HCD resources are freed. This covers both the HCD initialization error path and normal HCD removal.
osv:CVE-2026-98762
Kernel
Fixed versions: 5.15.224, 6.1.191, 6.6.160, 6.12.113, 6.18.56, 7.2.10
Complete source record
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"url": "https://osv.dev/vulnerability/CVE-2026-98762",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "USB: dwc2: shut down wakeup timer before freeing HCD state",
"summary": "In the Linux kernel, the following vulnerability has been resolved: USB: dwc2: shut down wakeup timer before freeing HCD state dwc2_wakeup_detected() accesses the DWC2 host state and can rearm the wakeup timer. dwc2_hcd_free() currently deletes the timer only after freeing host-owned state, and timer_delete() does not synchronize a callback or prevent it from being queued again. Stop and shut down the timer in dwc2_hcd_release(), before the HCD resources are freed. This covers both the HCD initialization error path and normal HCD removal.",
"evidence": "osv:CVE-2026-98762",
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"modified": "2026-11-01T02:30:41.950584782Z",
"provider": "osv",
"references": [
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"https://nvd.nist.gov/vuln/detail/CVE-2026-98762",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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"related_cves": [
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"evidence": "/id"
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"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 495955,
"published_at": "2026-10-18T15:47:53.656+00:00"
}