Buffer Validation Flaw in Linux Kernel's HID Component

CVE-2025-38494

What is CVE-2025-38494?

CVE-2025-38494 is a vulnerability identified within the Linux kernel's Human Interface Device (HID) component. The Linux kernel is a core part of many operating systems, providing essential services for hardware and managing system resources. This particular vulnerability arises from a buffer validation flaw related to the hid_hw_raw_request() function in the HID subsystem, which is responsible for handling input devices like keyboards and mice. When this function is improperly bypassed, it can lead to the use of invalid parameters without the necessary checks, potentially resulting in instability or security breaches within the operating system. The exploitability of this vulnerability poses a negative impact on organizations relying on Linux, as it can compromise system integrity and lead to unexpected behavior during device interactions.

Potential impact of CVE-2025-38494

1. System Instability: Due to the lack of proper validation for input buffers, organizations may experience crashes or unpredictable behavior within their systems. This can disrupt critical operations and degrade user experiences, particularly in environments where input devices are essential for workflow.

2. Security Breaches: If exploited, this vulnerability may allow unauthorized access or manipulation of device data, leading to potential data leakage or malicious control over connected peripherals. This creates a pathway for attackers to gain access to the underlying system, escalating into larger security incidents.

3. Operational Risk: As many organizations utilize Linux for various applications and services, the presence of this vulnerability increases operational risks. Failing to address it with timely updates could result in compliance violations or exposure to cyber threats, necessitating increased vigilance and resources for incident management.

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