linux-kernel - [PATCH net v2 0/3] virtio-net: fixes for mergeable XDP receive path

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Message-ID: <20250630144212.48471-1-minhquangbui99@gmail.com>
Date: Mon, 30 Jun 2025 21:42:09 +0700
From: Bui Quang Minh <minhquangbui99@...il.com>
To: netdev@...r.kernel.org
Cc: "Michael S. Tsirkin" <mst@...hat.com>,
	Jason Wang <jasowang@...hat.com>,
	Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
	Eugenio Pérez <eperezma@...hat.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Jesper Dangaard Brouer <hawk@...nel.org>,
	John Fastabend <john.fastabend@...il.com>,
	Stanislav Fomichev <sdf@...ichev.me>,
	virtualization@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	bpf@...r.kernel.org,
	Bui Quang Minh <minhquangbui99@...il.com>
Subject: [PATCH net v2 0/3] virtio-net: fixes for mergeable XDP receive path

Hi everyone,

This series contains fixes for XDP receive path in virtio-net
- Patch 1: add a missing check for the received data length with our
allocated buffer size in mergeable mode.
- Patch 2: remove a redundant truesize check with PAGE_SIZE in mergeable
mode
- Patch 3: make the current repeated code use the check_mergeable_len to
check for received data length in mergeable mode

Version 2 changes:
- Move the check_mergeable_len helper definition to the patch 1.
- Remove patch 4.

Thanks,
Quang Minh.

Bui Quang Minh (3):
  virtio-net: ensure the received length does not exceed allocated size
  virtio-net: remove redundant truesize check with PAGE_SIZE
  virtio-net: use the check_mergeable_len helper

 drivers/net/virtio_net.c | 75 ++++++++++++++++++++++------------------
 1 file changed, 42 insertions(+), 33 deletions(-)

-- 
2.43.0