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| author | Balazs Nemeth <bnemeth@redhat.com> | 2021-03-09 12:31:01 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-03-10 01:12:20 +0100 |
| commit | d348ede32e99d3a04863e9f9b28d224456118c27 (patch) | |
| tree | aa561ac181147df2e9c5b52ed67706e2e26ba9c9 /net/batman-adv | |
| parent | net: check if protocol extracted by virtio_net_hdr_set_proto is correct (diff) | |
| download | linux-d348ede32e99d3a04863e9f9b28d224456118c27.tar.xz linux-d348ede32e99d3a04863e9f9b28d224456118c27.zip | |
net: avoid infinite loop in mpls_gso_segment when mpls_hlen == 0
A packet with skb_inner_network_header(skb) == skb_network_header(skb)
and ETH_P_MPLS_UC will prevent mpls_gso_segment from pulling any headers
from the packet. Subsequently, the call to skb_mac_gso_segment will
again call mpls_gso_segment with the same packet leading to an infinite
loop. In addition, ensure that the header length is a multiple of four,
which should hold irrespective of the number of stacked labels.
Signed-off-by: Balazs Nemeth <bnemeth@redhat.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/batman-adv')
0 files changed, 0 insertions, 0 deletions