Vulnerability in Linux

[ Description ]Official description

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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund18 Oct 2026WID-SEC-2026-4019

  Linux Kernel: Multiple vulnerabilities Translated from German

  CVE-2026-98866CVE-2026-98624CVE-2026-98745+326 more CVEs

[ References ]References

• git.kernel.org/stable/c/4333174ea52c863a50bb3e0a4726bf9f7cdf7524
• git.kernel.org/stable/c/441be312fce927443eae2821f502344d953c38bb
• git.kernel.org/stable/c/79ba37dd38a321cb32a79332a3e3c68dd334dca9
• git.kernel.org/stable/c/82cc242da6d621752718929e6a2fa6f9554ebffe
• git.kernel.org/stable/c/fd772af9512cdecb83de34a461801533828e77fd