| commit | d6085fe19b8ec53d8ea2d8a10390b7ab6978ac44 | [log] [tgz] |
|---|---|---|
| author | Paolo Abeni <pabeni@redhat.com> | Thu Apr 30 15:01:53 2020 +0200 |
| committer | David S. Miller <davem@davemloft.net> | Thu Apr 30 12:23:22 2020 -0700 |
| tree | 8d86b32993478227f5a62f98d2f232f53afa6314 | |
| parent | cfde141ea3faa30e362bbdb5c28001bbbdb0b8e0 [diff] |
mptcp: avoid a WARN on bad input.
Syzcaller has found a way to trigger the WARN_ON_ONCE condition
in check_fully_established().
The root cause is a legit fallback to TCP scenario, so replace
the WARN with a plain message on a more strict condition.
Fixes: f296234c98a8 ("mptcp: Add handling of incoming MP_JOIN requests")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>