diff options
| author |   Eric Dumazet <edumazet@google.com> | 2026-04-30 12:26:52 +0000 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2026-05-04 19:12:37 -0700 |
| commit | 059b7dbd20a6f0c539a45ddff1573cb8946685b5 (patch) | |
| tree | 3ff47e158434a15b5f48cd8a668fb1e4a7690548 /tools/arch/arm64/include/uapi/git:/ssh:/git@git.zx2c4.com | |
| parent | net: usb: asix: ax88772: re-add usbnet_link_change() in phylink callbacks (diff) | |
vsock/virtio: fix potential unbounded skb queue
virtio_transport_inc_rx_pkt() checks vvs->rx_bytes + len > vvs->buf_alloc.
virtio_transport_recv_enqueue() skips coalescing for packets
with VIRTIO_VSOCK_SEQ_EOM.
If fed with packets with len == 0 and VIRTIO_VSOCK_SEQ_EOM,
a very large number of packets can be queued
because vvs->rx_bytes stays at 0.
Fix this by estimating the skb metadata size:
(Number of skbs in the queue) * SKB_TRUESIZE(0)
Fixes: 077706165717 ("virtio/vsock: don't use skbuff state to account credit")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Stefano Garzarella <sgarzare@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Cc: "Eugenio Pérez" <eperezma@redhat.com>
Cc: virtualization@lists.linux.dev
Link: https://patch.msgid.link/20260430122653.554058-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/arch/arm64/include/uapi/git:/ssh:/git@git.zx2c4.com')
0 files changed, 0 insertions, 0 deletions