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(parent: d62e255) | 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)
commitdfdc635d55f92db58a63dc52d0f5d6ee651c73ec
tree1783e8b38cee8612203d03d8ad581f6fd2dc7fe3tree | snapshot
parentd62e255ecc33c6e3c82bcd2aaf0916886f7ab134commit | diff
tcp: Fix a data-race around sysctl_tcp_limit_output_bytes.

commit 9fb90193fbd66b4c5409ef729fd081861f8b6351 upstream.

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

Fixes: 46d3ceabd8d9 ("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 | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git