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(parent: 84cee47) | patch
tcp: Fix data-races around sysctl_tcp_max_reordering.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Mon, 18 Jul 2022 17:26:53 +0000 (10:26 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 29 Jul 2022 15:25:23 +0000 (17:25 +0200)
commitce3731c61589ed73364a5b55ce34131762ef9b60
tree67da6c5887e51f82268ea197c697368d126740cdtree | snapshot
parent84cee470f77cb89d59b1c3f28ab2c7c4971ec473commit | diff
tcp: Fix data-races around sysctl_tcp_max_reordering.

[ Upstream commit a11e5b3e7a59fde1a90b0eaeaa82320495cf8cae ]

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

Fixes: dca145ffaa8d ("tcp: allow for bigger reordering level")
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
Domain: System / Kernel;