linux-stable/net/bridge
Nikolay Aleksandrov 54cb43199e net: bridge: multicast: fix igmp/mld port context null pointer dereferences
With the recent change to use bridge/port multicast context pointers
instead of bridge/port I missed to convert two locations which pass the
port pointer as-is, but with the new model we need to verify the port
context is non-NULL first and retrieve the port from it. The first
location is when doing querier selection when a query is received, the
second location is when leaving a group. The port context will be null
if the packets originated from the bridge device (i.e. from the host).
The fix is simple just check if the port context exists and retrieve
the port pointer from it.

Fixes: adc47037a7 ("net: bridge: multicast: use multicast contexts instead of bridge or port")
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-21 09:04:03 -07:00
..
netfilter netfilter: allow to turn off xtables compat layer 2021-04-26 18:16:56 +02:00
br.c net: bridge: add vlan mcast snooping knob 2021-07-20 05:41:20 -07:00
br_arp_nd_proxy.c net: bridge: when suppression is enabled exclude RARP packets 2021-03-22 13:30:24 -07:00
br_cfm.c bridge: cfm: remove redundant return 2021-06-22 10:35:15 -07:00
br_cfm_netlink.c bridge: cfm: Netlink Notifications. 2020-10-29 18:39:44 -07:00
br_device.c net: bridge: add vlan mcast snooping knob 2021-07-20 05:41:20 -07:00
br_fdb.c net: bridge: allow br_fdb_replay to be called for the bridge device 2021-06-29 10:46:23 -07:00
br_forward.c net: bridge: multicast: use multicast contexts instead of bridge or port 2021-07-20 05:41:19 -07:00
br_if.c net: bridge: sync fdb to new unicast-filtering ports 2021-07-02 13:34:07 -07:00
br_input.c net: bridge: add vlan mcast snooping knob 2021-07-20 05:41:20 -07:00
br_ioctl.c net: bridge: delete duplicated words 2020-09-18 14:12:43 -07:00
br_mdb.c net: bridge: multicast: include router port vlan id in notifications 2021-07-20 05:41:20 -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 bridge: mrp: Use hlist_head instead of list_head for mrp 2020-11-09 16:42:12 -08:00
br_mrp_switchdev.c bridge: mrp: Extend br_mrp_switchdev to detect better the errors 2021-02-16 14:47:46 -08:00
br_multicast.c net: bridge: multicast: fix igmp/mld port context null pointer dereferences 2021-07-21 09:04:03 -07:00
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 netfilter: bridge: reset skb->pkt_type after NF_INET_POST_ROUTING traversal 2020-11-28 11:46:51 -08:00
br_netfilter_ipv6.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2019-06-25 01:32:59 +02:00
br_netlink.c net: bridge: multicast: factor out bridge multicast context 2021-07-20 05:41:19 -07:00
br_netlink_tunnel.c net: bridge: notify on vlan tunnel changes done via the old api 2020-07-12 15:18:24 -07:00
br_nf_core.c net: add bool confirm_neigh parameter for dst_ops.update_pmtu 2019-12-24 22:28:54 -08:00
br_private.h net: bridge: vlan: add mcast snooping control 2021-07-20 05:41:20 -07:00
br_private_cfm.h bridge: cfm: Kernel space implementation of CFM. CCM frame RX added. 2020-10-29 18:39:43 -07:00
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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
br_private_tunnel.h net: bridge: vlan options: add support for tunnel mapping set/del 2020-03-17 22:47:12 -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 net: bridge: add STP xstats 2019-12-14 20:02:36 -08:00
br_stp_if.c net: remove newlines in NL_SET_ERR_MSG_MOD 2020-05-07 17:56:14 -07:00
br_stp_timer.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
br_switchdev.c net: bridge: switchdev: send FDB notifications for host addresses 2021-06-29 10:46:23 -07:00
br_sysfs_br.c net: bridge: multicast: factor out bridge multicast context 2021-07-20 05:41:19 -07:00
br_sysfs_if.c net: bridge: multicast: factor out port multicast context 2021-07-20 05:41:19 -07:00
br_vlan.c net: bridge: vlan: add support for dumping global vlan options 2021-07-20 05:41:20 -07:00
br_vlan_options.c net: bridge: vlan: add mcast snooping control 2021-07-20 05:41:20 -07:00
br_vlan_tunnel.c net: bridge: fix vlan tunnel dst refcnt when egressing 2021-06-10 14:06:43 -07:00
Kconfig bridge: cfm: Add BRIDGE_CFM to Kconfig. 2020-10-29 18:39:43 -07:00
Makefile net: bridge: multicast: add EHT host handling functions 2021-01-22 19:39:56 -08:00