Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: core: flush gadget workqueue after device removal device_del() can lead to new work being scheduled in gadget->work workqueue. This is observed, for example, with the dwc3 driver with the following call stack: device_del() gadget_unbind_driver() usb_gadget_disconnect_locked() dwc3_gadget_pullup() dwc3_gadget_soft_disconnect() usb_gadget_set_state() schedule_work(&gadget->work) Move flush_work() after device_del() to ensure the workqueue is cleaned up.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.12, < 6.1.130 |
References
- https://git.kernel.org/stable/c/399a45e5237ca14037120b1b895bd38a3b4492eaPatch
- https://git.kernel.org/stable/c/859cb45aefa6de823b2fa7f229fe6d9562c9f3b7Patch
- https://git.kernel.org/stable/c/97695b5a1b5467a4f91194db12160f56da445dfePatch
- https://git.kernel.org/stable/c/e3bc1a9a67ce33a2e761e6e7b7c2afc6cb9b7266Patch
- https://git.kernel.org/stable/c/f894448f3904d7ad66fecef8f01fe0172629e091Patch
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
FAQ
What is CVE-2025-21838?
CVE-2025-21838 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: usb: gadget: core: flush gadget workqueue after device removal device_del() can lead to new work being scheduled in gadget->work w...
How severe is CVE-2025-21838?
CVE-2025-21838 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-21838?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.