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.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

No data.

References
Link Providers
https://git.kernel.org/stable/c/026714ec7546de741826324a6a1914c91024d06c cve-icon cve-icon
https://git.kernel.org/stable/c/a899adf7063c6745aaff1ec869f3c7f6329ed0a1 cve-icon cve-icon
https://git.kernel.org/stable/c/e53fc232a65f7488ab75d03a5b95f06aaada7262 cve-icon cve-icon
https://git.kernel.org/stable/c/ea3f18d2f02629653b7bfe42607737ccd1343e54 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025040132-CVE-2025-21923-5c6e@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-21923 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-21923 cve-icon
History

Wed, 16 Apr 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Fri, 11 Apr 2025 13:30:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Weaknesses CWE-416
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

 cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

Wed, 02 Apr 2025 14:00:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Tue, 01 Apr 2025 16:00:00 +0000

Type Values Removed Values Added
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.
Title HID: hid-steam: Fix use-after-free when detaching device
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-04-16T13:19:53.000Z

Reserved: 2024-12-29T08:45:45.788Z

Link: CVE-2025-21923

cve-icon Vulnrichment

Updated: 2025-04-16T13:15:11.988Z

cve-icon NVD

Status : Modified

Published: 2025-04-01T16:15:23.007

Modified: 2025-04-16T14:15:23.333

Link: CVE-2025-21923

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-04-01T00:00:00Z

Links: CVE-2025-21923 - Bugzilla