CVE-2025-39951

HIGH

Linux kernel - Use After Free

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: um: virtio_uml: Fix use-after-free after put_device in probe When register_virtio_device() fails in virtio_uml_probe(), the code sets vu_dev->registered = 1 even though the device was not successfully registered. This can lead to use-after-free or other issues.

References (7)

[Patch] https://git.kernel.org/stable/c/00e98b5a69034b251bb36dc6e7123d7648e218e4

[Patch] https://git.kernel.org/stable/c/14c231959a16ca41bfdcaede72483362a8c645d7

[Patch] https://git.kernel.org/stable/c/4f364023ddcfe83f7073b973a9cb98584b7f2a46

[Patch] https://git.kernel.org/stable/c/5e94e44c9cb30d7a383d8ac227f24a8c9326b770

[Patch] https://git.kernel.org/stable/c/7ebf70cf181651fe3f2e44e95e7e5073d594c9c0

[Patch] https://git.kernel.org/stable/c/aaf900a83508c8cd5cdf765e7749f9076196ec7f

[Patch] https://git.kernel.org/stable/c/c2ff91255e0157b356cff115d8dc3eeb5162edf2

Scores

CVSS v3 7.8

EPSS 0.0001

EPSS Percentile 1.2%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Classification

CWE

CWE-416

Status published

Affected Products (13)

linux/linux_kernel < 5.10.245

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

linux/Kernel < 5.10.245linux

linux/Kernel < 5.15.194linux

linux/Kernel < 6.1.154linux

linux/Kernel < 6.6.108linux

linux/Kernel < 6.12.49linux

linux/Kernel < 6.16.9linux

Timeline

Published Oct 04, 2025

Tracked Since Feb 18, 2026