mptcp: annotate lockless accesses to sk->sk_err

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[ Upstream commit 9ae8e5ad99 ]

mptcp_poll() reads sk->sk_err without socket lock held/owned.

Add READ_ONCE() and WRITE_ONCE() to avoid load/store tearing.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: d5fbeff1ab ("mptcp: move __mptcp_error_report in protocol.c")
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Eric Dumazet 2023-03-15 20:57:45 +00:00 • committed by Greg Kroah-Hartman

parent 09b6fdf7a1

commit c1432ece79

3 changed files with 7 additions and 7 deletions

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2

net/mptcp/pm_netlink.c

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8

net/mptcp/protocol.c

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4

net/mptcp/subflow.c

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