Input validation error in Linux kernel - CVE-2025-37942

Vulnerability identifier: #VU109578

CSH Severity: Low

CVSS v4: 6.8 [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]

CVE-ID: CVE-2025-37942

CWE-ID: CWE-20

Exploitation vector: Local access

Exploit availability: No public exploit available

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

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

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-azure (Ubuntu package)
linux-aws (Ubuntu package)

Install update from vendor's website.

Linux kernel - update to 6.14.3
linux (Ubuntu package) - addressed in versions 6.14.0-22.22, 6.14.0-1004.4, 6.14.0-1007.7, 6.14.0-1008.8
linux-azure (Ubuntu package) - update to 6.14.0-1007.7
linux-aws (Ubuntu package) - addressed in versions 6.14.0-1007.7, 6.14.0-1007.7+1

• https://git.kernel.org/stable/c/1f650dcec32d22deb1d6db12300a2b98483099a9
• https://git.kernel.org/stable/c/211861869766a7bb7c72158aee0140ec67e182a7
• https://git.kernel.org/stable/c/344d903be8b5c0733ed0f4bc5be34b4a26d905c8
• https://git.kernel.org/stable/c/a6f5d30a5c7713238c5c65c98ad95dacb73688d5
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.3

• Input validation error in Linux kernel hid usbhid driver
• Ubuntu update for linux
• Ubuntu update for linux-azure
• Ubuntu update for linux-aws