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Nikolay Aleksandrov 823d81b0fa net: bridge: fix stale eth hdr pointer in br_dev_xmit 
In br_dev_xmit() we perform vlan filtering in br_allowed_ingress() but
if the packet has the vlan header inside (e.g. bridge with disabled
tx-vlan-offload) then the vlan filtering code will use skb_vlan_untag()
to extract the vid before filtering which in turn calls pskb_may_pull()
and we may end up with a stale eth pointer. Moreover the cached eth header
pointer will generally be wrong after that operation. Remove the eth header
caching and just use eth_hdr() directly, the compiler does the right thing
and calculates it only once so we don't lose anything.

Fixes: 057658cb33 ("bridge: suppress arp pkts on BR_NEIGH_SUPPRESS ports")
Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2020-02-24 11:11:19 -08:00
..
netfilter netfilter: ebtables: compat: reject all padding in matches/watchers 2019-12-20 02:12:27 +01:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile net: bridge: vlan: add basic option dumping support 2020-01-24 12:58:14 +01:00
br.c treewide: Use sizeof_field() macro 2019-12-09 10:36:44 -08:00
br_arp_nd_proxy.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
br_device.c net: bridge: fix stale eth hdr pointer in br_dev_xmit 2020-02-24 11:11:19 -08:00
br_fdb.c net: bridge: fdb: eliminate extra port state tests from fast-path 2019-11-04 11:15:27 -08:00
br_forward.c net: bridge: check port state before br_allowed_egress 2020-01-24 12:58:14 +01:00
br_if.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
br_input.c net: bridge: vlan: add per-vlan state 2020-01-24 12:58:14 +01:00
br_ioctl.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
br_mdb.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-09-15 14:17:27 +02:00
br_multicast.c net: bridge: mdb: allow add/delete for host-joined groups 2019-08-17 12:36:57 -07:00
br_netfilter_hooks.c netfilter: bridge: make sure to pull arp header in br_nf_forward_arp() 2019-12-09 13:14:06 +01:00
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: vlan: notify on vlan add/delete/change flags 2020-01-15 13:48:18 +01:00
br_netlink_tunnel.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -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 per-vlan state 2020-01-24 12:58:14 +01:00
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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
br_stp.c bridge: br_stp: Use built-in RCU list checking 2020-02-19 11:13:43 -08:00
br_stp_bpdu.c net: bridge: add STP xstats 2019-12-14 20:02:36 -08:00
br_stp_if.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -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: fdb: convert offloaded to use bitops 2019-10-29 18:12:49 -07:00
br_sysfs_br.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
br_sysfs_if.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
br_vlan.c net: bridge: vlan: add per-vlan state 2020-01-24 12:58:14 +01:00
br_vlan_options.c net: bridge: vlan: add per-vlan state 2020-01-24 12:58:14 +01:00
br_vlan_tunnel.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00