CVE-2025-68249
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BaseFortify

Publication date: 2025-12-16

Last updated on: 2025-12-18

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: most: usb: hdm_probe: Fix calling put_device() before device initialization The early error path in hdm_probe() can jump to err_free_mdev before &mdev->dev has been initialized with device_initialize(). Calling put_device(&mdev->dev) there triggers a device core WARN and ends up invoking kref_put(&kobj->kref, kobject_release) on an uninitialized kobject. In this path the private struct was only kmalloc'ed and the intended release is effectively kfree(mdev) anyway, so free it directly instead of calling put_device() on an uninitialized device. This removes the WARNING and fixes the pre-initialization error path.
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Meta Information
Published
2025-12-16
Last Modified
2025-12-18
Generated
2026-06-16
AI Q&A
2025-12-16
EPSS Evaluated
2026-06-15
NVD
CVE-2025-68249
EUVD
EUVD-2025-203647
Affected Vendors & Products
Currently, no data is known.
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Exploitability
CWE
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability is in the Linux kernel's 'most' USB driver, specifically in the hdm_probe() function. The issue occurs because put_device() is called on a device before it has been properly initialized with device_initialize(). This leads to a device core warning and attempts to release an uninitialized kobject, which is incorrect. The fix involves directly freeing the allocated memory instead of calling put_device() on an uninitialized device, thereby removing the warning and correcting the error path.

Impact Analysis

The vulnerability can cause kernel warnings and potentially unstable behavior due to improper handling of device initialization and release. While it does not directly indicate a security breach, such kernel warnings and improper resource management could lead to system instability or crashes in affected USB device handling.

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