On Mon, May 16, 2022 at 02:52:29PM +0200, Nicolas Dichtel wrote:
commit e1a7ac6f3ba6e157adcd0ca94d92a401f1943f56 upstream.
When ping_group_range is updated, 'ping' uses the DGRAM ICMP socket, instead of an IP raw socket. In this case, 'ping' is unable to bind its socket to a local address owned by a vrflite.
Before the patch: $ sysctl -w net.ipv4.ping_group_range='0 2147483647' $ ip link add blue type vrf table 10 $ ip link add foo type dummy $ ip link set foo master blue $ ip link set foo up $ ip addr add 192.168.1.1/24 dev foo $ ip addr add 2001::1/64 dev foo $ ip vrf exec blue ping -c1 -I 192.168.1.1 192.168.1.2 ping: bind: Cannot assign requested address $ ip vrf exec blue ping6 -c1 -I 2001::1 2001::2 ping6: bind icmp socket: Cannot assign requested address
CC: stable@vger.kernel.org Fixes: 1b69c6d0ae90 ("net: Introduce L3 Master device abstraction") Signed-off-by: Nicolas Dichtel nicolas.dichtel@6wind.com Reviewed-by: David Ahern dsahern@kernel.org Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Nicolas Dichtel nicolas.dichtel@6wind.com
The patch applies also on 4.19, 4.14 and 4.9 stable trees, but I didn't test or compile it on these trees.
now all queued up, thanks.
greg k-h