net: always use icmp{,v6}_ndo_send from ndo_start_xmit
authorJason A. Donenfeld <Jason@zx2c4.com>
Sat, 27 Feb 2021 00:40:19 +0000 (01:40 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 17 Mar 2021 16:06:12 +0000 (17:06 +0100)
commit91796b65563bd3fd0efe4fb56d6ee1c5c6006eb0
tree1c97e99e0b3aedf769f8f192ed222aae849bab94
parent8abbf7e53e179b16dc48c40cecc6c86240ca026c
net: always use icmp{,v6}_ndo_send from ndo_start_xmit

commit 4372339efc06bc2a796f4cc9d0a7a929dfda4967 upstream.

There were a few remaining tunnel drivers that didn't receive the prior
conversion to icmp{,v6}_ndo_send. Knowing now that this could lead to
memory corrution (see ee576c47db60 ("net: icmp: pass zeroed opts from
icmp{,v6}_ndo_send before sending") for details), there's even more
imperative to have these all converted. So this commit goes through the
remaining cases that I could find and does a boring translation to the
ndo variety.

The Fixes: line below is the merge that originally added icmp{,v6}_
ndo_send and converted the first batch of icmp{,v6}_send users. The
rationale then for the change applies equally to this patch. It's just
that these drivers were left out of the initial conversion because these
network devices are hiding in net/ rather than in drivers/net/.

Cc: Florian Westphal <fw@strlen.de>
Cc: Willem de Bruijn <willemb@google.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: David Ahern <dsahern@kernel.org>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Fixes: 803381f9f117 ("Merge branch 'icmp-account-for-NAT-when-sending-icmps-from-ndo-layer'")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/ipv4/ip_tunnel.c
net/ipv4/ip_vti.c
net/ipv6/ip6_gre.c
net/ipv6/ip6_tunnel.c
net/ipv6/ip6_vti.c
net/ipv6/sit.c