Re: [PATCH 6.12] vsock/virtio: fix zerocopy completion for multi-skb sends
From: Sasha Levin <sashal@kernel.org>
Date: 2026-07-19 15:00:41
Also in:
kvm, lkml, stable, virtualization
When a large message is fragmented into multiple skbs, the zerocopy uarg is only allocated and attached to the last skb in the loop. Non-final skbs carry pinned user pages with no completion tracking, so the kernel has no way to notify userspace when those pages are safe to reuse.
Queued for 6.12, thanks. -- Thanks, Sasha