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(parent: 74753ec) | patch
tcp: Fix a data-race around sysctl_tcp_adv_win_scale.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Wed, 20 Jul 2022 16:50:14 +0000 (09:50 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 3 Aug 2022 10:03:44 +0000 (12:03 +0200)
commit0d8fa3c2a442cc0dded3708f081c8e95b1a94622
treed5c4122a0a91ceba54d52cdc5773aa8fc449c9a0tree | snapshot
parent74753ec663d744a3b62bb19dcc2217735fff87c1commit | diff
tcp: Fix a data-race around sysctl_tcp_adv_win_scale.

commit 36eeee75ef0157e42fb6593dcc65daab289b559e upstream.

While reading sysctl_tcp_adv_win_scale, 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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
include/net/tcp.h diff | blob | history
Domain: System / Kernel;