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Commit 50e41aa9 authored by Eric Dumazet's avatar Eric Dumazet Committed by Greg Kroah-Hartman
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udp: move udp->no_check6_tx to udp->udp_flags 

[ Upstream commit a0002127 ]

syzbot reported that udp->no_check6_tx 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 e2a4392b
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