diff options
| author | Florian Westphal <fw@strlen.de> | 2018-10-10 22:30:10 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-08 13:25:32 +0300 |
| commit | 5f2d68b6b5a439c3223d8fa6ba20736f91fc58d8 (patch) | |
| tree | e166c8bb6a139a8c3629cc9a8c9479b7ef8e759e /net/core | |
| parent | 26cfea3c1d041d08edacae291565f295553e15ce (diff) | |
| download | linux-5f2d68b6b5a439c3223d8fa6ba20736f91fc58d8.tar.xz | |
ipv6: defrag: drop non-last frags smaller than min mtu
commit 0ed4229b08c13c84a3c301a08defdc9e7f4467e6 upstream.
don't bother with pathological cases, they only waste cycles.
IPv6 requires a minimum MTU of 1280 so we should never see fragments
smaller than this (except last frag).
v3: don't use awkward "-offset + len"
v2: drop IPv4 part, which added same check w. IPV4_MIN_MTU (68).
There were concerns that there could be even smaller frags
generated by intermediate nodes, e.g. on radio networks.
Cc: Peter Oskolkov <posk@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Mao Wenan <maowenan@huawei.com>
[bwh: Backported to 4.4: In nf_ct_frag6_gather() use clone instead of skb,
and goto ret_orig in case of error]
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/core')
0 files changed, 0 insertions, 0 deletions