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(parent: 807b028) | patch
tcp: Fix a data-race around sysctl_tcp_app_win.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Wed, 20 Jul 2022 16:50:13 +0000 (09:50 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 3 Aug 2022 10:03:44 +0000 (12:03 +0200)
commit74753ec663d744a3b62bb19dcc2217735fff87c1
treef66e1255ef2f7225d35895811982f2b2d3132d5etree | snapshot
parent807b028115eb155f6e651ef14a57f36952b654e1commit | diff
tcp: Fix a data-race around sysctl_tcp_app_win.

commit 02ca527ac5581cf56749db9fd03d854e842253dd upstream.

While reading sysctl_tcp_app_win, 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>
net/ipv4/tcp_input.c diff | blob | history
Domain: System / Kernel;