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net: datagram: fix data-races in datagram_poll()
authorEric Dumazet <edumazet@google.com>
Tue, 9 May 2023 17:31:31 +0000 (17:31 +0000)
committerJakub Kicinski <kuba@kernel.org>
Thu, 11 May 2023 02:06:49 +0000 (19:06 -0700)
commit5bca1d081f44c9443e61841842ce4e9179d327b6
tree6fec4fcf2fe9fa1d406551fd8097c29a582412f6tree | snapshot
parentcdc2e28e214fe9315cdd7e069c1c8e2428f93427commit | diff
net: datagram: fix data-races in datagram_poll()

datagram_poll() runs locklessly, we should add READ_ONCE()
annotations while reading sk->sk_err, sk->sk_shutdown and sk->sk_state.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://lore.kernel.org/r/20230509173131.3263780-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
net/core/datagram.c diff | blob | blame | history
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