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net/eth: Check size earlier in _eth_get_rss_ex_dst_addr() 

Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Miroslav Rezanina <mrezanin@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2021-03-10 19:31:20 +01:00 committed by Jason Wang
parent dbd8d3f959
commit 6f10f77dcd
1 changed files with 6 additions and 8 deletions
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14
net/eth.c
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@ -406,16 +406,14 @@ _eth_get_rss_ex_dst_addr(const struct iovec *pkt, int pkt_frags,
struct in6_address *dst_addr)
{
struct ip6_ext_hdr_routing *rthdr = (struct ip6_ext_hdr_routing *) ext_hdr;
size_t input_size = iov_size(pkt, pkt_frags);
size_t bytes_read;
if (input_size < ext_hdr_offset + sizeof(*ext_hdr)) {
return false;
}
if ((rthdr->rtype == 2) && (rthdr->segleft == 1)) {
size_t input_size = iov_size(pkt, pkt_frags);
size_t bytes_read;
if (input_size < ext_hdr_offset + sizeof(*ext_hdr)) {
return false;
}
bytes_read = iov_to_buf(pkt, pkt_frags,
ext_hdr_offset + sizeof(*rthdr),
dst_addr, sizeof(*dst_addr));