iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
873aca2ee8
linux/net/bridge
History
Petr Machata 873aca2ee8 net: bridge: Fix locking in br_fdb_find_port() 
Callers of br_fdb_find() need to hold the hash lock, which
br_fdb_find_port() doesn't do. However, since br_fdb_find_port() is not
doing any actual FDB manipulation, the hash lock is not really needed at
all. So convert to br_fdb_find_rcu(), surrounded by rcu_read_lock() /
_unlock() pair.

The device pointer copied from inside the FDB entry is then kept alive
by the RTNL lock, which br_fdb_find_port() asserts.

Fixes: 4d4fd36126 ("net: bridge: Publish bridge accessor functions")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-06-08 19:58:31 -04:00
..
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2018-06-06 18:39:49 -07:00
br_arp_nd_proxy.c bridge: suppress nd pkts on BR_NEIGH_SUPPRESS ports 2017-10-08 21:12:04 -07:00
br_device.c net: bridge: disable bridge MTU auto tuning if it was set manually 2018-03-31 22:19:00 -04:00
br_fdb.c net: bridge: Fix locking in br_fdb_find_port() 2018-06-08 19:58:31 -04:00
br_forward.c net: bridge: add support for port isolation 2018-05-25 14:37:20 -04:00
br_if.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-05-04 09:58:56 -04:00
br_input.c net: bridge: add support for port isolation 2018-05-25 14:37:20 -04:00
br_ioctl.c net: bridge: add notifications for the bridge dev on vlan change 2017-11-02 15:53:40 +09:00
br_mdb.c net: use rtnl_register_module where needed 2017-12-04 11:32:39 -05:00
br_multicast.c net: bridge: Send notification when host join/leaves a group 2017-11-10 13:41:40 +09:00
br_netfilter_hooks.c net: Drop pernet_operations::async 2018-03-27 13:18:09 -04:00
br_netfilter_ipv6.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
br_netlink_tunnel.c bridge: netlink: make setlink/dellink notifications more accurate 2017-10-29 11:03:43 +09:00
br_netlink.c net: bridge: add support for port isolation 2018-05-25 14:37:20 -04:00
br_nf_core.c xfrm: Move dst->path into struct xfrm_dst 2017-11-30 09:54:26 -05:00
br_private_stp.h net: bridge: add helper to set topology change 2016-12-10 21:27:23 -05:00
br_private_tunnel.h bridge: netlink: make setlink/dellink notifications more accurate 2017-10-29 11:03:43 +09:00
br_private.h net: bridge: Extract boilerplate around switchdev_port_obj_*() 2018-05-31 14:13:42 -04:00
br_stp_bpdu.c net: introduce __skb_put_[zero, data, u8] 2017-06-20 13:30:14 -04:00
br_stp_if.c net: bridge: add notifications for the bridge dev on vlan change 2017-11-02 15:53:40 +09:00
br_stp_timer.c net: bridge: Convert timers to use timer_setup() 2017-11-03 15:42:49 +09:00
br_stp.c net: bridge: add notifications for the bridge dev on vlan change 2017-11-02 15:53:40 +09:00
br_switchdev.c net: bridge: Extract boilerplate around switchdev_port_obj_*() 2018-05-31 14:13:42 -04:00
br_sysfs_br.c net: Use octal not symbolic permissions 2018-03-26 12:07:48 -04:00
br_sysfs_if.c net: bridge: add support for port isolation 2018-05-25 14:37:20 -04:00
br_vlan_tunnel.c bridge: vlan_tunnel: explicitly reset metadata attrs to NULL on failure 2017-02-17 13:33:41 -05:00
br_vlan.c net: bridge: Notify about bridge VLANs 2018-05-31 14:13:44 -04:00
br.c net: bridge: Notify about !added_by_user FDB entries 2018-05-03 13:46:47 -04:00
Kconfig
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-11-04 09:26:51 +09:00