7.8

CVE-2025-21923

HID: hid-steam: Fix use-after-free when detaching device

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.6.79 < 6.6.83
Linux ≫ Linux Kernel Version >= 6.12.16 < 6.12.19
Linux ≫ Linux Kernel Version >= 6.13.4 < 6.13.7
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.19% 0.092
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

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