CVE-2025-39951

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-39951
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.

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
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 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc6:*:*:*:*:*:*
History

23 Jan 2026, 20:03

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/00e98b5a69034b251bb36dc6e7123d7648e218e4 - () https://git.kernel.org/stable/c/00e98b5a69034b251bb36dc6e7123d7648e218e4 - Patch
References () https://git.kernel.org/stable/c/14c231959a16ca41bfdcaede72483362a8c645d7 - () https://git.kernel.org/stable/c/14c231959a16ca41bfdcaede72483362a8c645d7 - Patch
References () https://git.kernel.org/stable/c/4f364023ddcfe83f7073b973a9cb98584b7f2a46 - () https://git.kernel.org/stable/c/4f364023ddcfe83f7073b973a9cb98584b7f2a46 - Patch
References () https://git.kernel.org/stable/c/5e94e44c9cb30d7a383d8ac227f24a8c9326b770 - () https://git.kernel.org/stable/c/5e94e44c9cb30d7a383d8ac227f24a8c9326b770 - Patch
References () https://git.kernel.org/stable/c/7ebf70cf181651fe3f2e44e95e7e5073d594c9c0 - () https://git.kernel.org/stable/c/7ebf70cf181651fe3f2e44e95e7e5073d594c9c0 - Patch
References () https://git.kernel.org/stable/c/aaf900a83508c8cd5cdf765e7749f9076196ec7f - () https://git.kernel.org/stable/c/aaf900a83508c8cd5cdf765e7749f9076196ec7f - Patch
References () https://git.kernel.org/stable/c/c2ff91255e0157b356cff115d8dc3eeb5162edf2 - () https://git.kernel.org/stable/c/c2ff91255e0157b356cff115d8dc3eeb5162edf2 - Patch
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8
First Time Linux
Linux linux Kernel
CPE cpe:2.3:o:linux:linux_kernel:6.17:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*
CWE CWE-416

04 Oct 2025, 08:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-10-04 08:15

Updated : 2026-01-23 20:03

NVD link : CVE-2025-39951

Mitre link : CVE-2025-39951

CVE.ORG link : CVE-2025-39951

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-416

Use After Free