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net/vmxnet3: Refine l2 header validation
Validation of l2 header length assumed minimal packet size as eth_header + 2 * vlan_header regardless of the actual protocol. This caused crash for valid non-IP packets shorter than 22 bytes, as 'tx_pkt->packet_type' hasn't been assigned for such packets, and 'vmxnet3_on_tx_done_update_stats()' expects it to be properly set. Refine header length validation in 'vmxnet_tx_pkt_parse_headers'. Check its return value during packet processing flow. As a side effect, in case IPv4 and IPv6 header validation failure, corrupt packets will be dropped. Signed-off-by: Dana Rubin <dana.rubin@ravellosystems.com> Signed-off-by: Shmulik Ladkani <shmulik.ladkani@ravellosystems.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
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