Nikolay Aleksandrov 99b4061095 net: bridge: mcast: add and enforce query interval minimum ... As reported[1] if query interval is set too low and we have multiple bridges or even a single bridge with multiple querier vlans configured we can crash the machine. Add a 1 second minimum which must be enforced by overwriting the value if set lower (i.e. without returning an error) to avoid breaking user-space. If that happens a log message is emitted to let the administrator know that the interval has been set to the minimum. The issue has been present since these intervals could be user-controlled. [1] https://lore.kernel.org/netdev/e8b9ce41-57b9-b6e2-a46a-ff9c791cf0ba@gmail.com/ Fixes: d902eee43f ("bridge: Add multicast count/interval sysfs entries") Reported-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2021-12-29 12:59:37 -08:00
..
netfilter	Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next	2021-11-01 12:59:58 +00:00
br.c	net: make use of helper netif_is_bridge_master()	2021-10-16 15:02:56 +01:00
br_arp_nd_proxy.c
br_cfm.c	bridge: cfm: remove redundant return	2021-06-22 10:35:15 -07:00
br_cfm_netlink.c
br_device.c	net: bridge: move bridge ioctls out of .ndo_do_ioctl	2021-07-27 20:11:45 +01:00
br_fdb.c	net: bridge: move br_fdb_replay inside br_switchdev.c	2021-10-27 14:54:02 +01:00
br_forward.c	net: bridge: fix build when setting skb->offload_fwd_mark with CONFIG_NET_SWITCHDEV=n	2021-07-24 21:48:26 +01:00
br_if.c	net: bridge: rename br_fdb_insert to br_fdb_add_local	2021-10-27 14:54:02 +01:00
br_input.c	net: bridge: change return type of br_handle_ingress_vlan_tunnel	2021-08-24 16:51:09 -07:00
br_ioctl.c	net: bridge: fix ioctl old_deviceless bridge argument	2021-12-23 09:53:50 -08:00
br_mdb.c	net: bridge: mdb: move all switchdev logic to br_switchdev.c	2021-10-28 20:05:57 -07:00
br_mrp.c	net: bridge: mrp: Update the Test frames for MRA	2021-06-28 15:46:10 -07:00
br_mrp_netlink.c
br_mrp_switchdev.c
br_multicast.c	net: bridge: mcast: add and enforce query interval minimum	2021-12-29 12:59:37 -08:00
br_multicast_eht.c	net: bridge: multicast: use multicast contexts instead of bridge or port	2021-07-20 05:41:19 -07:00
br_netfilter_hooks.c	net: make use of helper netif_is_bridge_master()	2021-10-16 15:02:56 +01:00
br_netfilter_ipv6.c
br_netlink.c	net: bridge: mcast: add and enforce query interval minimum	2021-12-29 12:59:37 -08:00
br_netlink_tunnel.c
br_nf_core.c
br_private.h	net: bridge: mcast: add and enforce query interval minimum	2021-12-29 12:59:37 -08:00
br_private_cfm.h
br_private_mcast_eht.h	net: bridge: multicast: use multicast contexts instead of bridge or port	2021-07-20 05:41:19 -07:00
br_private_mrp.h	net: bridge: mrp: Update the Test frames for MRA	2021-06-28 15:46:10 -07:00
br_private_stp.h
br_private_tunnel.h	net: bridge: change return type of br_handle_ingress_vlan_tunnel	2021-08-24 16:51:09 -07:00
br_stp.c	net: bridge: constify variables in the replay helpers	2021-06-28 14:09:03 -07:00
br_stp_bpdu.c
br_stp_if.c	net: use eth_hw_addr_set()	2021-10-02 14:18:25 +01:00
br_stp_timer.c
br_switchdev.c	net: bridge: switchdev: consistent function naming	2021-10-28 20:05:57 -07:00
br_sysfs_br.c	net: bridge: mcast: add and enforce query interval minimum	2021-12-29 12:59:37 -08:00
br_sysfs_if.c	net: bridge: mcast: br_multicast_set_port_router takes multicast context as argument	2021-08-20 15:00:35 +01:00
br_vlan.c	net: bridge: move br_vlan_replay to br_switchdev.c	2021-10-28 20:05:57 -07:00
br_vlan_options.c	net: bridge: mcast: add and enforce query interval minimum	2021-12-29 12:59:37 -08:00
br_vlan_tunnel.c	net: bridge: change return type of br_handle_ingress_vlan_tunnel	2021-08-24 16:51:09 -07:00
Kconfig
Makefile