diff options
| author | Jason Wang <jasowang@redhat.com> | 2013-11-01 15:01:10 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-11-02 02:16:07 -0400 |
| commit | 6f092343855a71e03b8d209815d8c45bf3a27fcd (patch) | |
| tree | aeb6de3e6587b60c913c0e779c313ee0bd2a7b00 /Documentation/SecurityBugs | |
| parent | 2e19ef02511224cc415f49e1b38928b1cfac49be (diff) | |
net: flow_dissector: fail on evil iph->ihl
We don't validate iph->ihl which may lead a dead loop if we meet a IPIP
skb whose iph->ihl is zero. Fix this by failing immediately when iph->ihl
is evil (less than 5).
This issue were introduced by commit ec5efe7946280d1e84603389a1030ccec0a767ae
(rps: support IPIP encapsulation).
Cc: Eric Dumazet <edumazet@google.com>
Cc: Petr Matousek <pmatouse@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/SecurityBugs')
0 files changed, 0 insertions, 0 deletions