tcp: use dst_dev_rcu() in tcp_fastopen_active_disable_ofo_check()

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[ Upstream commit b62a59c18b ]

Use RCU to avoid a pair of atomic operations and a potential
UAF on dst_dev()->flags.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20250828195823.3958522-8-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Eric Dumazet 2025-08-28 19:58:22 +00:00 • committed by Greg Kroah-Hartman

parent 28c96ce273

commit 06da08d935

1 changed files with 4 additions and 3 deletions

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net/ipv4/tcp_fastopen.c

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