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| author |   Yohei Kanemaru <yohei.kanemaru@gmail.com> | 2019-01-29 15:52:34 +0900 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-01-30 14:06:12 -0800 |
| commit | ef489749aae508e6f17886775c075f12ff919fb1 (patch) | |
| tree | ca6e7ad0f0176a76a90baee3ef6af49519bacddc /drivers/net/tun.c | |
| parent | Merge branch 'virtio_net-Fix-problems-around-XDP-tx-and-napi_tx' (diff) | |
| download | linux-dev-ef489749aae508e6f17886775c075f12ff919fb1.tar.xz linux-dev-ef489749aae508e6f17886775c075f12ff919fb1.zip | |
ipv6: sr: clear IP6CB(skb) on SRH ip4ip6 encapsulation
skb->cb may contain data from previous layers (in an observed case
IPv4 with L3 Master Device). In the observed scenario, the data in
IPCB(skb)->frags was misinterpreted as IP6CB(skb)->frag_max_size,
eventually caused an unexpected IPv6 fragmentation in ip6_fragment()
through ip6_finish_output().
This patch clears IP6CB(skb), which potentially contains garbage data,
on the SRH ip4ip6 encapsulation.
Fixes: 32d99d0b6702 ("ipv6: sr: add support for ip4ip6 encapsulation")
Signed-off-by: Yohei Kanemaru <yohei.kanemaru@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/tun.c')
0 files changed, 0 insertions, 0 deletions