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Commit 033963b2 authored by Kuniyuki Iwashima's avatar Kuniyuki Iwashima Committed by Greg Kroah-Hartman
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tcp: Fix a data-race around sysctl_tcp_mtu_probe_floor.



[ Upstream commit 8e92d4423615a5257d0d871fc067aa561f597deb ]

While reading sysctl_tcp_mtu_probe_floor, it can be changed concurrently.
Thus, we need to add READ_ONCE() to its reader.

Fixes: c04b79b6 ("tcp: add new tcp_mtu_probe_floor sysctl")
Signed-off-by: default avatarKuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent fdb96b69
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