6.6-stable review patch. If anyone has any objections, please let me know.
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From: Ido Schimmel idosch@nvidia.com
[ Upstream commit e7191e517a03d025405c7df730b400ad4118474e ]
Unmask the upper DSCP bits when initializing an IPv4 flow key via ip_tunnel_init_flow() before passing it to ip_route_output_key() so that in the future we could perform the FIB lookup according to the full DSCP value.
Signed-off-by: Ido Schimmel idosch@nvidia.com Reviewed-by: Guillaume Nault gnault@redhat.com Signed-off-by: David S. Miller davem@davemloft.net Stable-dep-of: b5a7b661a073 ("net: Fix netns for ip_tunnel_init_flow()") Signed-off-by: Sasha Levin sashal@kernel.org --- net/ipv4/ip_tunnel.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c index 0f5cfe3caa2e..571cf7c2fa28 100644 --- a/net/ipv4/ip_tunnel.c +++ b/net/ipv4/ip_tunnel.c @@ -293,7 +293,7 @@ static int ip_tunnel_bind_dev(struct net_device *dev)
ip_tunnel_init_flow(&fl4, iph->protocol, iph->daddr, iph->saddr, tunnel->parms.o_key, - RT_TOS(iph->tos), dev_net(dev), + iph->tos & INET_DSCP_MASK, dev_net(dev), tunnel->parms.link, tunnel->fwmark, 0, 0); rt = ip_route_output_key(tunnel->net, &fl4);