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(parent: 07f0796) | patch
tcp: Fix data-races around sysctl_tcp_syncookies.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Fri, 15 Jul 2022 17:17:47 +0000 (10:17 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 29 Jul 2022 15:14:13 +0000 (17:14 +0200)
commit9046bb779a871fb73c30b28dc86827c3e1127972
tree22fa47a210a1e364baa39ae33fa6441e0c32beedtree | snapshot
parent07f0796c4e4479cb3b1127a6c6bbf84709c6828bcommit | diff
tcp: Fix data-races around sysctl_tcp_syncookies.

[ Upstream commit 7b4908bbe388b384effc3d5a727d44481203e167 ]

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

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/core/filter.c diff | blob | history
net/ipv4/syncookies.c diff | blob | history
net/ipv4/tcp_input.c diff | blob | history
net/ipv6/syncookies.c diff | blob | history
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