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(parent: 4b5b34c) | patch
tcp: Fix a data-race around sysctl_tcp_limit_output_bytes.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Wed, 20 Jul 2022 16:50:20 +0000 (09:50 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 3 Aug 2022 09:59:38 +0000 (11:59 +0200)
commite21f805185a645d9f15652e2130d376a09ee17d3
tree1783e8b38cee8612203d03d8ad581f6fd2dc7fe3tree | snapshot
parent4b5b34cb528a1f52a19a59eccd4952d07c5dac7ccommit | diff
tcp: Fix a data-race around sysctl_tcp_limit_output_bytes.

commit e43d7d13237a0dda329a6ad5572d3de1d90f5818 upstream.

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

Fixes: 684db463d695 ("tcp: TCP Small Queues")
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_output.c diff | blob | history
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