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(parent: c292d7f) | patch
tcp: Fix a data-race around sysctl_tcp_comp_sack_slack_ns.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Fri, 22 Jul 2022 18:22:02 +0000 (11:22 -0700)
committerDavid S. Miller <davem@davemloft.net>
Mon, 25 Jul 2022 11:42:10 +0000 (12:42 +0100)
commite465c8e2917c784bb96de604cbb1fef9fd5bf3ca
tree70723212735e519a0ff8b80b00536d3c42558220tree | snapshot
parentc292d7fcda517fb1f0113466915ccd9b972c2250commit | diff
tcp: Fix a data-race around sysctl_tcp_comp_sack_slack_ns.

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

Fixes: 828bb0ad5f68 ("tcp: add hrtimer slack to sack compression")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv4/tcp_input.c diff | blob | history
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