Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: HID: hid-steam: Fix use-after-free when detaching device When a hid-steam device is removed it must clean up the client_hdev used for intercepting hidraw access. This can lead to scheduling deferred work to reattach the input device. Though the cleanup cancels the deferred work, this was done before the client_hdev itself is cleaned up, so it gets rescheduled. This patch fixes the ordering to make sure the deferred work is properly canceled.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.6.79, < 6.6.83 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/026714ec7546de741826324a6a1914c91024d06cPatch
- https://git.kernel.org/stable/c/a899adf7063c6745aaff1ec869f3c7f6329ed0a1Patch
- https://git.kernel.org/stable/c/e53fc232a65f7488ab75d03a5b95f06aaada7262Patch
- https://git.kernel.org/stable/c/ea3f18d2f02629653b7bfe42607737ccd1343e54Patch
FAQ
What is CVE-2025-21923?
CVE-2025-21923 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: HID: hid-steam: Fix use-after-free when detaching device When a hid-steam device is removed it must clean up the client_hdev used ...
How severe is CVE-2025-21923?
CVE-2025-21923 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-21923?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.