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I. Basic Information for CVE-2025-21923
Vulnerability Information

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Vulnerability Title
HID: hid-steam: Fix use-after-free when detaching device
Source: NVD (National Vulnerability Database)
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞,该漏洞源于hid-steam在分离设备时存在UAF。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
LinuxLinux e1147961b2145fa61c3078a4a797d9576cde91ab ~ 026714ec7546de741826324a6a1914c91024d06c -
LinuxLinux 6.6.79 ~ 6.6.83 -
II. Public POCs for CVE-2025-21923
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III. Intelligence Information for CVE-2025-21923
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IV. Related Vulnerabilities
V. Comments for CVE-2025-21923

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