kernel: vsock/virtio: fix zerocopy completion for multi-skb sends

A flaw was found in the Linux kernel's vsock/virtio component. This vulnerability occurs during zerocopy completion for large messages fragmented into multiple socket kernel buffers skbs. An issue in how user arguments uargs are handled for these buffers can lead to pinned user pages not being...

SUSE CVE-2026-74310

In the Linux kernel, the following vulnerability has been resolved: vhost/net: complete zerocopy ubufs only once vhost-net initializes one ubufinfo per outstanding zerocopy TX descriptor and hands it to the backend socket. The networking stack may then clone a zerocopy skb before all skb referenc...

CVE-2026-53365

The Linux kernel is vulnerable in the vsock/virtio component due to a flaw in zerocopy completion for multi-skb sends. When large messages are fragmented, the zerocopy uarg is incorrectly attached only to the last skb, causing non-final skbs to carry pinned user pages without completion tracking....