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NetRxPkt: Do not try to pull more data than present

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In case of VLAN stripping, ETH header put into a
separate buffer, therefore amont of data copied
from original IOV should be smaller.

Cc: qemu-stable@nongnu.org
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Dmitry Fleytman
2017-03-06 11:46:02 +08:00
committed by Jason Wang
parent df8bf7a7fe
commit d5e772146d
1 changed files with 2 additions and 1 deletions
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hw/net/net_rx_pkt.c
+2 -1
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@@ -96,7 +96,8 @@ net_rx_pkt_pull_data(struct NetRxPkt *pkt,
pkt->tot_len = iov_size(iov, iovcnt) - ploff + pkt->ehdr_buf_len;
pkt->vec_len = iov_copy(pkt->vec + 1, pkt->vec_len_total - 1,
iov, iovcnt, ploff, pkt->tot_len);
iov, iovcnt, ploff,
pkt->tot_len - pkt->ehdr_buf_len);
} else {
net_rx_pkt_iovec_realloc(pkt, iovcnt);