From: Eric Dumazet Date: Fri, 25 Sep 2020 13:38:08 +0000 (-0700) Subject: team: set dev->needed_headroom in team_setup_by_port() X-Git-Tag: v5.4.71~42 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=003269d8d6de1762a0ae386a2ad31fb1155cdf44;p=users%2Fdwmw2%2Flinux.git team: set dev->needed_headroom in team_setup_by_port() commit 89d01748b2354e210b5d4ea47bc25a42a1b42c82 upstream. Some devices set needed_headroom. If we ignore it, we might end up crashing in various skb_push() for example in ipgre_header() since some layers assume enough headroom has been reserved. Fixes: 1d76efe1577b ("team: add support for non-ethernet devices") Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index 04845a4017f93..e1423770f9ce5 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -2111,6 +2111,7 @@ static void team_setup_by_port(struct net_device *dev, dev->header_ops = port_dev->header_ops; dev->type = port_dev->type; dev->hard_header_len = port_dev->hard_header_len; + dev->needed_headroom = port_dev->needed_headroom; dev->addr_len = port_dev->addr_len; dev->mtu = port_dev->mtu; memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len);