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(parent: d6085fe) | patch
mptcp: fix 'use_ack' option access.
authorPaolo Abeni <pabeni@redhat.com>
Thu, 30 Apr 2020 13:01:54 +0000 (15:01 +0200)
committerDavid S. Miller <davem@davemloft.net>
Thu, 30 Apr 2020 19:23:22 +0000 (12:23 -0700)
commit5a91e32b40af86c790c4348aa3a5926a5c5fbc6d
treeb37d96ed1fc96dcb3fa7fb5b86ee8fe962b89097tree | snapshot
parentd6085fe19b8ec53d8ea2d8a10390b7ab6978ac44commit | diff
mptcp: fix 'use_ack' option access.

The mentioned RX option field is initialized only for DSS
packet, we must access it only if 'dss' is set too, or
the subflow will end-up in a bad status, leading to
RFC violations.

Fixes: d22f4988ffec ("mptcp: process MP_CAPABLE data option")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/mptcp/options.c diff | blob | history
Domain: System / Kernel;