{"id":"CVE-2026-98762","title":"USB: dwc2: shut down wakeup timer before freeing HCD state","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: dwc2: shut down wakeup timer before freeing HCD state\n\ndwc2_wakeup_detected() accesses the DWC2 host state and can rearm the\nwakeup timer.  dwc2_hcd_free() current…","severity":"medium","cvss":4.7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-416"],"vendor":"Linux","product":"Linux","affected":["Linux >= 7359d482eb4d3967cc8be354405ae6be6eaf732c < 82cc242da6d621752718929e6a2fa6f9554ebffe","Linux >= 7359d482eb4d3967cc8be354405ae6be6eaf732c < 441be312fce927443eae2821f502344d953c38bb","Linux >= 7359d482eb4d3967cc8be354405ae6be6eaf732c < 4333174ea52c863a50bb3e0a4726bf9f7cdf7524","Linux >= 7359d482eb4d3967cc8be354405ae6be6eaf732c < 79ba37dd38a321cb32a79332a3e3c68dd334dca9","Linux >= 7359d482eb4d3967cc8be354405ae6be6eaf732c < fd772af9512cdecb83de34a461801533828e77fd","Linux 3.10"],"published":"2026-10-18","updated":"2026-10-21","sourceUpdated":"2026-10-21T12:56:36.466Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98762","references":[{"url":"https://git.kernel.org/stable/c/82cc242da6d621752718929e6a2fa6f9554ebffe"},{"url":"https://git.kernel.org/stable/c/441be312fce927443eae2821f502344d953c38bb"},{"url":"https://git.kernel.org/stable/c/4333174ea52c863a50bb3e0a4726bf9f7cdf7524"},{"url":"https://git.kernel.org/stable/c/79ba37dd38a321cb32a79332a3e3c68dd334dca9"},{"url":"https://git.kernel.org/stable/c/fd772af9512cdecb83de34a461801533828e77fd"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98762.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98762"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2555157"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98762"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98762"},{"url":"https://kernelcve.org/list/?q=CVE-2026-98762"}],"tags":["cve.org","csaf","vex","red-hat"],"epss":0.00168,"epssPercentile":0.05973,"ingestedAt":"2026-10-18T16:47:32.495Z","slug":"CVE-2026-98762","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nUSB: dwc2: shut down wakeup timer before freeing HCD state\n\ndwc2_wakeup_detected() accesses the DWC2 host state and can rearm the\nwakeup timer.  dwc2_hcd_free() currently deletes the timer only after\nfreeing host-owned state, and timer_delete() does not synchronize a\ncallback or prevent it from being queued again.\n\nStop and shut down the timer in dwc2_hcd_release(), before the HCD\nresources are freed.  This covers both the HCD initialization error path\nand normal HCD removal.\n\n## Affected\n\n- `Linux >= 7359d482eb4d3967cc8be354405ae6be6eaf732c < 82cc242da6d621752718929e6a2fa6f9554ebffe`\n- `Linux >= 7359d482eb4d3967cc8be354405ae6be6eaf732c < 441be312fce927443eae2821f502344d953c38bb`\n- `Linux >= 7359d482eb4d3967cc8be354405ae6be6eaf732c < 4333174ea52c863a50bb3e0a4726bf9f7cdf7524`\n- `Linux >= 7359d482eb4d3967cc8be354405ae6be6eaf732c < 79ba37dd38a321cb32a79332a3e3c68dd334dca9`\n- `Linux >= 7359d482eb4d3967cc8be354405ae6be6eaf732c < fd772af9512cdecb83de34a461801533828e77fd`\n- `Linux 3.10`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10 · no fix planned: Red Hat Enterprise Linux 10 · updated 2026-10-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98762.json)","depth":"sunlit","depthScore":26,"depthScoreParts":{"impact":25.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":227112,"id":"CVE-2026-98762","ts":1792585136840,"field":"cvss","old":null,"new":"4.7"},{"seq":227111,"id":"CVE-2026-98762","ts":1792585136840,"field":"severity","old":"none","new":"medium"}]}