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(parent: a000212) | patch
udp: move udp->no_check6_rx to udp->udp_flags
authorEric Dumazet <edumazet@google.com>
Tue, 12 Sep 2023 09:17:23 +0000 (09:17 +0000)
committerPaolo Abeni <pabeni@redhat.com>
Thu, 14 Sep 2023 14:16:36 +0000 (16:16 +0200)
commitbcbc1b1de884647aa0318bf74eb7f293d72a1e40
tree72cfa2a2b8c50560adfdddca252fdc6d5be58c81tree | snapshot
parenta0002127cd746fcaa182ad3386ef6931c37f3bdacommit | diff
udp: move udp->no_check6_rx to udp->udp_flags

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

Fixes: 1c19448c9ba6 ("net: Make enabling of zero UDP6 csums more restrictive")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
include/linux/udp.h diff | blob | history
net/ipv4/udp.c diff | blob | history
net/ipv6/udp.c diff | blob | history
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