[PATCH v2 0/2] net: prevent infinite loop caused by incorrect proto from virtio_net_hdr_set_proto

From: Balazs Nemeth
Date: Mon Mar 08 2021 - 05:33:14 EST


Here is v2 of the patches that prevent an infinite loop for gso packets
with a protocol from virtio net hdr that doesn't match the protocol in
the packet. Note that packets coming from a device without
header_ops->parse_protocol being implemented will not be caught by
the check in virtio_net_hdr_to_skb, but the infinite loop will still
be prevented by the check in the gso layer.

Balazs Nemeth (2):
net: check if protocol extracted by virtio_net_hdr_set_proto is
correct
net: avoid infinite loop in mpls_gso_segment when mpls_hlen == 0

include/linux/virtio_net.h | 8 +++++++-
net/mpls/mpls_gso.c | 2 +-
2 files changed, 8 insertions(+), 2 deletions(-)

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2.29.2