In the Linux kernel, the following vulnerability has been resolved:
usb: gadget: f_hid: fix f_hidg lifetime vs cdev
The embedded struct cdev does not have its lifetime correctly tied to
the enclosing struct f_hidg, so there is a use-after-free if /dev/hidgN
is held open while the gadget is deleted.
This can readily be replicated with libusbgx's example programs (for
conciseness - operating directly via configfs is equivalent):
gadget-hid
exec 3<> /dev/hidg0
gadget-vid-pid-remove
exec 3<&-
Pull the existing device up in to struct f_hidg and make use of the
cdev_device_{add,del}() helpers. This changes the lifetime of the
device object to match struct f_hidg, but note that it is still added
and deleted at the same time.
CVSS
No CVSS.
References
Configurations
No configuration.
History
22 Oct 2025, 14:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-10-22 14:15
Updated : 2025-10-22 21:12
NVD link : CVE-2022-50568
Mitre link : CVE-2022-50568
CVE.ORG link : CVE-2022-50568
JSON object : View
Products Affected
No product.
CWE
No CWE.