BaseFortify

Publication date: 2025-12-24

Last updated on: 2025-12-29

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: usb: idmouse: fix an uninit-value in idmouse_open In idmouse_create_image, if any ftip_command fails, it will go to the reset label. However, this leads to the data in bulk_in_buffer[HEADER..IMGSIZE] uninitialized. And the check for valid image incurs an uninitialized dereference. Fix this by moving the check before reset label since this check only be valid if the data after bulk_in_buffer[HEADER] has concrete data. Note that this is found by KMSAN, so only kernel compilation is tested.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2025-12-24

Last Modified

2025-12-29

Generated

2026-07-06

AI Q&A

2025-12-24

EPSS Evaluated

2026-07-05

NVD

CVE-2022-50733

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability is in the Linux kernel's usb idmouse driver. Specifically, in the idmouse_create_image function, if a certain command (ftip_command) fails, the code jumps to a reset label without properly initializing some data in the bulk_in_buffer array. This leads to an uninitialized value being dereferenced when checking for a valid image, which is a programming error. The issue was found using Kernel Memory Sanitizer (KMSAN) during kernel compilation testing.

Impact Analysis

The vulnerability causes an uninitialized value to be dereferenced in kernel code, which can lead to undefined behavior such as kernel crashes or instability. However, since it was detected by KMSAN during compilation testing, it primarily affects kernel reliability and stability rather than direct security compromise. There is no information about exploitation or impact beyond this.

Hi! I’m here to help you understand CVE-2022-50733. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70