Subject: [PATCH net 0/2] ipv4: Ensure ECN bits don't influence source address validation

From: Guillaume Nault <[email-masked]>
Date: Sat, 16 Jan 2021 11:44:18 +0100

Functions that end up calling fib_table_lookup() should clear the ECN
bits from the TOS, otherwise ECT(0) and ECT(1) packets can be treated
differently.

Most functions already clear the ECN bits, but there are a few cases
where this is not done. This series only fixes the ones related to
source address validation.

Guillaume Nault (2):
  udp: mask TOS bits in udp_v4_early_demux()
  netfilter: rpfilter: mask ecn bits before fib lookup

 net/ipv4/netfilter/ipt_rpfilter.c | 2 +-
 net/ipv4/udp.c                    | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

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2.21.3