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Commit 753886c0 authored by Eric Dumazet's avatar Eric Dumazet Committed by Greg Kroah-Hartman
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udp: move udp->gro_enabled to udp->udp_flags 



[ Upstream commit e1dc0615 ]

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

Fixes: e20cf8d3 ("udp: implement GRO for plain UDP sockets.")
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 a01cff15
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