linux/net/bridge
Vlad Yasevich fc92f745f8 bridge: Fix crash with vlan filtering and tcpdump
When the vlan filtering is enabled on the bridge, but
the filter is not configured on the bridge device itself,
running tcpdump on the bridge device will result in a
an Oops with NULL pointer dereference.  The reason
is that br_pass_frame_up() will bypass the vlan
check because promisc flag is set.  It will then try
to get the table pointer and process the packet based
on the table.  Since the table pointer is NULL, we oops.
Catch this special condition in br_handle_vlan().

Reported-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
CC: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Acked-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-03-28 17:14:02 -04:00
..
netfilter netfilter: nf_tables: rename nft_do_chain_pktinfo() to nft_do_chain() 2014-01-09 20:17:16 +01:00
br_device.c bridge: Fix inabillity to retrieve vlan tags when tx offload is disabled 2014-03-28 16:33:09 -04:00
br_fdb.c bridge: Prevent possible race condition in br_fdb_change_mac_address 2014-02-10 14:34:34 -08:00
br_forward.c bridge: remove unnecessary parentheses 2013-12-19 19:27:26 -05:00
br_if.c bridge: Change local fdb entries whenever mac address of bridge device changes 2014-02-10 14:34:33 -08:00
br_input.c bridge: Fix crash with vlan filtering and tcpdump 2014-03-28 17:14:02 -04:00
br_ioctl.c bridge: add space before '(/{', after ',', etc. 2013-12-19 19:27:26 -05:00
br_mdb.c Revert "bridge: only expire the mdb entry when query is received" 2013-10-22 14:41:02 -04:00
br_multicast.c bridge: multicast: enable snooping on general queries only 2014-03-11 23:22:10 -04:00
br_netfilter.c bridge: change "foo* bar" to "foo *bar" 2013-12-19 19:27:26 -05:00
br_netlink.c netlink: cleanup rntl_af_register 2014-01-01 23:42:19 -05:00
br_notify.c net: convert resend IGMP to notifier event 2013-07-23 16:52:47 -07:00
br_private_stp.h net: 8021q/bluetooth/bridge/can/ceph: Remove extern from function prototypes 2013-10-19 19:12:11 -04:00
br_private.h bridge: Properly check if local fdb entry can be deleted when deleting vlan 2014-02-10 14:34:34 -08:00
br_stp_bpdu.c br: fix use of ->rx_handler_data in code executed on non-rx_handler path 2013-12-06 15:41:40 -05:00
br_stp_if.c bridge: Change local fdb entries whenever mac address of bridge device changes 2014-02-10 14:34:33 -08:00
br_stp_timer.c bridge: add space before '(/{', after ',', etc. 2013-12-19 19:27:26 -05:00
br_stp.c bridge: Clamp forward_delay when enabling STP 2013-09-12 23:32:14 -04:00
br_sysfs_br.c bridge: use DEVICE_ATTR_xx macros 2014-01-06 16:40:46 -05:00
br_sysfs_if.c bridge: change "foo* bar" to "foo *bar" 2013-12-19 19:27:26 -05:00
br_vlan.c bridge: Fix crash with vlan filtering and tcpdump 2014-03-28 17:14:02 -04:00
br.c bridge: move br_net_exit() to br.c 2014-01-13 23:42:39 -08:00
Kconfig bridge: Add vlan filtering infrastructure 2013-02-13 19:41:46 -05:00
Makefile bridge: Add vlan filtering infrastructure 2013-02-13 19:41:46 -05:00