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| author | David S. Miller <davem@davemloft.net> | 2019-06-17 10:39:56 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-06-17 10:39:56 -0700 |
| commit | 4fddbf8a99ee5a65bdd31b3ebbf5a84b9395d496 (patch) | |
| tree | 671cdce9ff92bdd0a99619f995bbcea9124735ad /include/net/netns/ipv4.h | |
| parent | 6be8e297f9bcea666ea85ac7a6cd9d52d6deaf92 (diff) | |
| parent | 967c05aee439e6e5d7d805e195b3a20ef5c433d6 (diff) | |
| download | linux-4fddbf8a99ee5a65bdd31b3ebbf5a84b9395d496.tar.bz2 | |
Merge branch 'tcp-fixes'
Eric Dumazet says:
====================
tcp: make sack processing more robust
Jonathan Looney brought to our attention multiple problems
in TCP stack at the sender side.
SACK processing can be abused by malicious peers to either
cause overflows, or increase of memory usage.
First two patches fix the immediate problems.
Since the malicious peers abuse senders by advertizing a very
small MSS in their SYN or SYNACK packet, the last two
patches add a new sysctl so that admins can chose a higher
limit for MSS clamping.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/netns/ipv4.h')
| -rw-r--r-- | include/net/netns/ipv4.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h index 7698460a3dd1..623cfbb7b8dc 100644 --- a/include/net/netns/ipv4.h +++ b/include/net/netns/ipv4.h @@ -117,6 +117,7 @@ struct netns_ipv4 { #endif int sysctl_tcp_mtu_probing; int sysctl_tcp_base_mss; + int sysctl_tcp_min_snd_mss; int sysctl_tcp_probe_threshold; u32 sysctl_tcp_probe_interval; |