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(parent: 664a331) | 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 10:03:46 +0000 (12:03 +0200)
commita88de75673e4f898564f90feb61e5d625e03c4c4
treecd51330195f933300c58110c02e2c7fd50f4d07dtree | snapshot
parent664a3311e6716c2361cf64a38a00a0ef8cb78b38commit | 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 | history
Domain: System / Kernel;