CVE-2025-21838 - "Linux USB Gadget Workqueue Queue Flush Denial of Service"

CVE-2025-21838 - "Linux USB Gadget Workqueue Queue Flush Denial of Service"

https://cvefeed.io/rssfeed/latest.atom / Fri, 03/07/2025 - 13:29
CVE ID : CVE-2025-21838
Published : March 7, 2025, 9:15 a.m. | 1 hour, 37 minutes ago
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.
Severity: 0.0 | NA
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