UPSTREAM: ipv6: Don't reduce hop limit for an interface
A local route may have a lower hop_limit set than global routes do.
RFC 3756, Section 4.2.7, "Parameter Spoofing"
> 1. The attacker includes a Current Hop Limit of one or another small
> number which the attacker knows will cause legitimate packets to
> be dropped before they reach their destination.
> As an example, one possible approach to mitigate this threat is to
> ignore very small hop limits. The nodes could implement a
> configurable minimum hop limit, and ignore attempts to set it below
> said limit.
Bug: 29409847
Signed-off-by: D.S. Ljungmark <ljungmark@modio.se>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 6fd99094de2b83d1d4c8457f2c83483b2828e75a)
Bug: 31554728
Change-Id: I24ee5723e4bcb3fbdbf4308531ab58e9ff215e82
Tracked-On: https://jira01.devtools.intel.com/browse/AW-1795
Signed-off-by: Victor Tasayco Loarte <victorx.tasayco.loarte@intel.com>
1 file changed
