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CVE-2026-98762

USB: dwc2: shut down wakeup timer before freeing HCD state PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 7359d482eb4d3967cc8be354405ae6be6eaf732c before 82cc242da6d621752718929e6a2fa6f9554ebffe; affected 7359d482eb4d3967cc8be354405ae6be6eaf732c before 441be312fce927443eae2821f502344d953c38bb; affected 7359d482eb4d3967cc8be354405ae6be6eaf732c before 4333174ea52c863a50bb3e0a4726bf9f7cdf7524; affected 7359d482eb4d3967cc8be354405ae6be6eaf732c before 79ba37dd38a321cb32a79332a3e3c68dd334dca9; affected 7359d482eb4d3967cc8be354405ae6be6eaf732c before fd772af9512cdecb83de34a461801533828e77fd
Linux / Linuxaffected 3.10; unaffected 0 before 3.10; unaffected 6.6.160 through 6.6.*; unaffected 6.12.113 through 6.12.*; unaffected 6.18.56 through 6.18.*; unaffected 7.2.10 through 7.2.*; unaffected 7.3 through *

CWE

No CWE identifiers supplied.

References