CVE-2025-68249

Linux Kernel - Use-After-Free in hdm_probe Error Handling

Title source: llm
STIX 2.1

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.

Scores

EPSS 0.0004
EPSS Percentile 12.3%

Details

Status published
Products (22)
linux/Kernel 5.11.0 - 5.15.196linux
linux/Kernel 5.16.0 - 6.1.158linux
linux/Kernel 5.9.0 - 5.10.246linux
linux/Kernel 6.13.0 - 6.17.6linux
linux/Kernel 6.2.0 - 6.6.115linux
linux/Kernel 6.7.0 - 6.12.56linux
Linux/Linux < 5.9
Linux/Linux 5.10.246 - 5.10.*
Linux/Linux 5.15.196 - 5.15.*
Linux/Linux 5.9
... and 12 more
Published Dec 16, 2025
Tracked Since Feb 18, 2026