#VU114188 Input validation error in Linux kernel - CVE-2025-38540

Vulnerability identifier: #VU114188

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-38540

CWE-ID: CWE-20

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the HID_USB_DEVICE() function in drivers/hid/hid-quirks.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/1b297ab6f38ca60a4ca7298b297944ec6043b2f4
https://git.kernel.org/stable/c/2b0931eee48208c25bb77486946dea8e96aa6a36
https://git.kernel.org/stable/c/35f1a5360ac68d9629abbb3930a0a07901cba296
https://git.kernel.org/stable/c/3ce1d87d1f5d80322757aa917182deb7370963b9
https://git.kernel.org/stable/c/54bae4c17c11688339eb73a04fd24203bb6e7494
https://git.kernel.org/stable/c/7ac00f019698f614a49cce34c198d0568ab0e1c2
https://git.kernel.org/stable/c/a2a91abd19c574b598b1c69ad76ad9c7eedaf062
https://git.kernel.org/stable/c/c72536350e82b53a1be0f3bfdf1511bba2827102

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?