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(parent: 609ce7f) | patch
tcp: Fix a data-race around sysctl_tcp_max_orphans.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Wed, 6 Jul 2022 23:39:58 +0000 (16:39 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 21 Jul 2022 19:20:07 +0000 (21:20 +0200)
commit6481a8a72a746dc96e3aa70a9f9f6d3daf0f88c2
tree8cf319f73d6adc0ff05d8e2a3a4067b8abb13a1ftree
parent609ce7ff75a75aff2c2301094bb1572544b3ffa7commit | diff
tcp: Fix a data-race around sysctl_tcp_max_orphans.

[ Upstream commit 47e6ab24e8c6e3ca10ceb5835413f401f90de4bf ]

While reading sysctl_tcp_max_orphans, it can be changed concurrently.
So, we need to add READ_ONCE() to avoid a data-race.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
net/ipv4/tcp.c diff | blob | history
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