CVE-2025-39951
HIGH severity · CVSS 7.8 · Use-after-free
7.8CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/00e98b5a69034b251bb36dc6e7123d7648e218e4 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/00e98b5a69034b251bb36dc6e7123d7648e218e4Patch
- https://git.kernel.org/stable/c/14c231959a16ca41bfdcaede72483362a8c645d7Patch
- https://git.kernel.org/stable/c/4f364023ddcfe83f7073b973a9cb98584b7f2a46Patch
- https://git.kernel.org/stable/c/5e94e44c9cb30d7a383d8ac227f24a8c9326b770Patch
- https://git.kernel.org/stable/c/7ebf70cf181651fe3f2e44e95e7e5073d594c9c0Patch
- https://git.kernel.org/stable/c/aaf900a83508c8cd5cdf765e7749f9076196ec7fPatch
- https://git.kernel.org/stable/c/c2ff91255e0157b356cff115d8dc3eeb5162edf2Patch