CVE-2025-21838 — Use After Free in Linux
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 93.51%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 7
Latest updateSep 3
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()…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages9 packages
▶CVEListV5linux/linux5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15 — e3bc1a9a67ce33a2e761e6e7b7c2afc6cb9b7266+5