Re: [PATCH net v2] vsock/virtio: bind uarg before filling zerocopy skb

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@xxxxxxxxxx>:

On Wed, 27 May 2026 10:33:01 +0800 you wrote:
> From: Jingguo Tan <tanjingguo@xxxxxxxxxx>
> 
> virtio_transport_send_pkt_info() allocates or reuses the zerocopy uarg
> before entering the send loop, but virtio_transport_alloc_skb() still
> fills the skb before it inherits that uarg. When fixed-buffer vectored
> zerocopy hits MAX_SKB_FRAGS, io_sg_from_iter() may partially attach
> managed frags and return -EMSGSIZE. The rollback path call kfree_skb()
> to free an skb that carries SKBFL_MANAGED_FRAG_REFS but no uarg, so
> skb_release_data() falls through to ordinary frag unref.
> 
> [...]

Here is the summary with links:
  - [net,v2] vsock/virtio: bind uarg before filling zerocopy skb
    https://git.kernel.org/netdev/net/c/1e584c304cfb

You are awesome, thank you!
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