mptcp: add annotations around sk->sk_shutdown accesses

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[ Upstream commit 6b9831bfd9 ]

Christoph reported the mptcp variant of a recently addressed plain
TCP issue. Similar to commit e14cadfd80 ("tcp: add annotations around
sk->sk_shutdown accesses") add READ/WRITE ONCE annotations to silence
KCSAN reports around lockless sk_shutdown access.

Fixes: 71ba088ce0 ("mptcp: cleanup accept and poll")
Reported-by: Christoph Paasch <cpaasch@apple.com>
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/401
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Paolo Abeni 2023-05-31 12:37:07 -07:00 • committed by Greg Kroah-Hartman

parent 0b9e6d64cd

commit e2feb39312

1 changed files with 16 additions and 13 deletions

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net/mptcp/protocol.c

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