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(parent: daa8b5b) | patch
tcp: Fix a data-race around sysctl_tcp_stdurg.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Mon, 18 Jul 2022 17:26:50 +0000 (10:26 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 29 Jul 2022 15:19:22 +0000 (17:19 +0200)
commit03bb3892f3f18fd98717aa6763ab3885416e69d0
tree016112efdbdc26b59572cb81ec8ceb93d0525153tree
parentdaa8b5b8694c05a383fe43ffea679aa2153277cfcommit | diff
tcp: Fix a data-race around sysctl_tcp_stdurg.

[ Upstream commit 4e08ed41cb1194009fc1a916a59ce3ed4afd77cd ]

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

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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