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(parent: 74a8821) | patch
tcp: Fix a data-race around sysctl_tcp_ecn_fallback.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Tue, 12 Jul 2022 00:15:31 +0000 (17:15 -0700)
committerDavid S. Miller <davem@davemloft.net>
Wed, 13 Jul 2022 11:56:49 +0000 (12:56 +0100)
commit848463747f32b848b109713de5df71372dfa1902
treeeb0cf7b142f2ba30550f218d87781524b11ee14btree | snapshot
parent74a88219c7c44cf4cdc9dc5e0dd46b751d1b5e3acommit | diff
tcp: Fix a data-race around sysctl_tcp_ecn_fallback.

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

Fixes: d444f4d90464 ("tcp: add rfc3168, section 6.1.1.1. fallback")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/sysctl_net_ipv4.c diff | blob | history
net/ipv4/tcp_output.c diff | blob | history
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