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Commit a01cff15 authored by Eric Dumazet's avatar Eric Dumazet Committed by Greg Kroah-Hartman
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udp: move udp->no_check6_rx to udp->udp_flags 

[ Upstream commit bcbc1b1d ]

syzbot reported that udp->no_check6_rx can be read locklessly.
Use one atomic bit from udp->udp_flags.

Fixes: 1c19448c

 ("net: Make enabling of zero UDP6 csums more restrictive")
Reported-by: default avatarsyzbot <syzkaller@googlegroups.com>
Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Reviewed-by: default avatarWillem de Bruijn <willemb@google.com>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 50e41aa9
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