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f8414a8d88
twx-linux/net
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Jason A. Donenfeld f8414a8d88 net: xdp: pull ethernet header off packet after computing skb->protocol 
When an XDP program changes the ethernet header protocol field,
eth_type_trans is used to recalculate skb->protocol. In order for
eth_type_trans to work correctly, the ethernet header must actually be
part of the skb data segment, so the code first pushes that onto the
head of the skb. However, it subsequently forgets to pull it back off,
making the behavior of the passed-on packet inconsistent between the
protocol modifying case and the static protocol case. This patch fixes
the issue by simply pulling the ethernet header back off of the skb
head.

Fixes: 297249569932 ("net: fix generic XDP to handle if eth header was mangled")
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-16 15:28:18 -07:00
..
6lowpan treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
9p Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-08-02 01:02:12 -07:00
802
8021q net: get rid of lockdep_set_class_and_subclass() 2020-06-28 21:37:23 -07:00
appletalk appletalk: Fix atalk_proc_init() return path 2020-08-03 15:48:32 -07:00
atm mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
ax25 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-07-25 17:49:04 -07:00
batman-adv batman-adv: Introduce a configurable per interface hop penalty 2020-06-26 10:37:11 +02:00
bluetooth mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
bpf bpf: Allow to specify ifindex for skb in bpf_prog_test_run_skb 2020-08-03 23:32:23 +02:00
bpfilter Merge branch 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2020-08-04 14:27:25 -07:00
bridge Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-08-05 20:13:21 -07:00
caif net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
can can: j1939: transport: j1939_xtp_rx_dat_one(): compare own packets to detect corruptions 2020-08-14 12:38:47 +02:00
ceph libceph: replace HTTP links with HTTPS ones 2020-08-03 11:05:26 +02:00
core net: xdp: pull ethernet header off packet after computing skb->protocol 2020-08-16 15:28:18 -07:00
dcb dcb_doit: remove redundant skb check 2020-06-23 20:27:09 -07:00
dccp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-08-05 20:13:21 -07:00
decnet Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2020-08-03 16:03:18 -07:00
dns_resolver
dsa net: dsa: stop overriding master's ndo_get_phys_port_name 2020-07-23 15:14:58 -07:00
ethernet
ethtool mlx5-updates-2020-08-03 2020-08-03 18:24:30 -07:00
hsr hsr: Use %pM format specifier for MAC addresses 2020-07-31 16:46:26 -07:00
ieee802154 net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
ife
ipv4 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-08-13 20:03:11 -07:00
ipv6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-08-05 20:13:21 -07:00
iucv Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-08-05 20:13:21 -07:00
kcm net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
key Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-08-02 01:02:12 -07:00
l2tp l2tp: improve API documentation in l2tp_core.h 2020-07-30 16:45:31 -07:00
l3mdev l3mdev: add infrastructure for table to VRF mapping 2020-06-20 17:22:22 -07:00
lapb treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
llc net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
mac80211 mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
mac802154 mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
mpls net: Removed the device type check to add mpls support for devices 2020-07-27 11:40:47 -07:00
mptcp mptcp: sendmsg: reset iter on error 2020-08-14 14:11:37 -07:00
ncsi net/ncsi: use eth_zero_addr() to clear mac address 2020-07-23 11:49:41 -07:00
netfilter A set of locking fixes and updates: 2020-08-10 19:07:44 -07:00
netlabel net: netlabel: kerneldoc fixes 2020-07-13 17:20:40 -07:00
netlink - Add support to enable/disable the thermal zones resulting on core code and 2020-08-06 18:10:55 -07:00
netrom net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
nfc net/nfc/rawsock.c: add CAP_NET_RAW check. 2020-08-11 10:34:30 -07:00
nsh treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
openvswitch net: openvswitch: introduce common code for flushing flows 2020-08-13 15:53:30 -07:00
packet af_packet: TPACKET_V3: fix fill status rwlock imbalance 2020-08-13 15:37:30 -07:00
phonet net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
psample
qrtr Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-07-25 17:49:04 -07:00
rds Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-08-02 01:02:12 -07:00
rfkill
rose net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
rxrpc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-08-02 01:02:12 -07:00
sched Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-08-05 20:13:21 -07:00
sctp mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
smc net/smc: unique reason code for exceeded max dmb count 2020-07-27 10:30:01 -07:00
strparser
sunrpc Highlights: 2020-08-09 13:58:04 -07:00
switchdev net: switchdev: kerneldoc fixes 2020-07-13 17:20:40 -07:00
tipc mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
tls net/tls: Fix kmap usage 2020-08-11 10:20:34 -07:00
unix net: make ->{get,set}sockopt in proto_ops optional 2020-07-19 18:16:41 -07:00
vmw_vsock vsock: fix potential null pointer dereference in vsock_poll() 2020-08-12 12:56:06 -07:00
wimax
wireless mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
x25 net: pass a sockptr_t into ->setsockopt 2020-07-24 15:41:54 -07:00
xdp xdp: Prevent kernel-infoleak in xsk_getsockopt() 2020-07-28 12:50:15 +02:00
xfrm A set of locking fixes and updates: 2020-08-10 19:07:44 -07:00
compat.c net/scm: Fix typo in SCM_RIGHTS compat refactoring 2020-08-07 12:43:25 -07:00
devres.c net: devres: rename the release callback of devm_register_netdev() 2020-06-30 15:57:34 -07:00
Kconfig net: ethtool: Remove PHYLIB direct dependency 2020-07-07 15:41:05 -07:00
Makefile
socket.c net: Revert "net: optimize the sockptr_t for unified kernel/user address spaces" 2020-08-10 12:06:44 -07:00
sysctl_net.c