CVE-2025-21923 Information

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.

Reference

https://git.kernel.org/stable/c/026714ec7546de741826324a6a1914c91024d06c https://git.kernel.org/stable/c/a899adf7063c6745aaff1ec869f3c7f6329ed0a1 https://git.kernel.org/stable/c/e53fc232a65f7488ab75d03a5b95f06aaada7262 https://git.kernel.org/stable/c/ea3f18d2f02629653b7bfe42607737ccd1343e54