Tracker / CVE-2025-39718
CVE-2025-39718
High 8.4
In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: Validate length in packet header before skb_put() When receiving a vsock packet in the guest, only the virtqueue buffer size is validated prior to virtio_vsock_skb_rx_put(). Unfortunately, virtio_vsock_skb_rx_put() uses the length from the packet header as the length argument to skb_put(), potentially resulting in SKB overflow if the host has gone wonky. Validate the length as advertised by the packet header before calling virtio_vsock_skb_rx_put().
Affected products and versions
| debian | debian_linux |
|---|---|
| linux | linux_kernel · 6.1.63 → 6.1.149 |
| linux | linux_kernel · 6.13 → 6.16.4 |
| linux | linux_kernel · 6.3 → 6.6.103 |
| linux | linux_kernel · 6.7 → 6.12.44 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.