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(parent: d72d617) | patch
tcp: Fix data-races around sysctl_max_syn_backlog.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Fri, 15 Jul 2022 17:17:53 +0000 (10:17 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 29 Jul 2022 15:14:13 +0000 (17:14 +0200)
commita79c8c81a3e208caaab527179830c10adb0ce901
tree4b00765f7b122b2f4c4d80c6375e24a583ecbe98tree | snapshot
parentd72d617d9d7db87581dc2af4bcb741b4a2540299commit | diff
tcp: Fix data-races around sysctl_max_syn_backlog.

[ Upstream commit 35a468fd5a2c3002fd5196a9122657e0595bdc33 ]

While reading sysctl_max_syn_backlog, 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/ipv4/tcp_input.c diff | blob | history
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