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(parent: 777d18e) | patch
tcp: Fix a data-race around sysctl_tcp_min_tso_segs.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Wed, 20 Jul 2022 16:50:22 +0000 (09:50 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 3 Aug 2022 10:03:48 +0000 (12:03 +0200)
commit922ca9fd221ba4b74abeee94675dd04d1307b8dd
treed0890ceb5f7f2dfc01040bc812ef5f224c6b2703tree | snapshot
parent777d18e65d0901d5cb05c0497e359192279f0498commit | diff
tcp: Fix a data-race around sysctl_tcp_min_tso_segs.

[ Upstream commit e0bb4ab9dfddd872622239f49fb2bd403b70853b ]

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

Fixes: 95bd09eb2750 ("tcp: TSO packets automatic sizing")
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_output.c diff | blob | history
Domain: System / Kernel;