CVE-2025-39951

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux04e5b1fb01834a602acaae2276b67a783a8c6159 < 14c231959a16ca41bfdcaede72483362a8c645d7affected
LinuxLinux04e5b1fb01834a602acaae2276b67a783a8c6159 < 5e94e44c9cb30d7a383d8ac227f24a8c9326b770affected
LinuxLinux04e5b1fb01834a602acaae2276b67a783a8c6159 < aaf900a83508c8cd5cdf765e7749f9076196ec7faffected
LinuxLinux04e5b1fb01834a602acaae2276b67a783a8c6159 < 4f364023ddcfe83f7073b973a9cb98584b7f2a46affected
LinuxLinux04e5b1fb01834a602acaae2276b67a783a8c6159 < 00e98b5a69034b251bb36dc6e7123d7648e218e4affected
LinuxLinux04e5b1fb01834a602acaae2276b67a783a8c6159 < c2ff91255e0157b356cff115d8dc3eeb5162edf2affected
LinuxLinux04e5b1fb01834a602acaae2276b67a783a8c6159 < 7ebf70cf181651fe3f2e44e95e7e5073d594c9c0affected
LinuxLinux5.5affected
LinuxLinux0 < 5.5unaffected
LinuxLinux5.10.245 <= 5.10.*unaffected
LinuxLinux5.15.194 <= 5.15.*unaffected
LinuxLinux6.1.154 <= 6.1.*unaffected
LinuxLinux6.6.108 <= 6.6.*unaffected
LinuxLinux6.12.49 <= 6.12.*unaffected
LinuxLinux6.16.9 <= 6.16.*unaffected
LinuxLinux6.17 <= *unaffected

Weaknesses

References