iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
9114daa825
linux/net/batman-adv
History
Sven Eckelmann 9114daa825 batman-adv: Force mac header to start of data on xmit 
The caller of ndo_start_xmit may not already have called
skb_reset_mac_header. The returned value of skb_mac_header/eth_hdr
therefore can be in the wrong position and even outside the current skbuff.
This for example happens when the user binds to the device using a
PF_PACKET-SOCK_RAW with enabled qdisc-bypass:

  int opt = 4;
  setsockopt(sock, SOL_PACKET, PACKET_QDISC_BYPASS, &opt, sizeof(opt));

Since eth_hdr is used all over the codebase, the batadv_interface_tx
function must always take care of resetting it.

Fixes: c6c8fea297 ("net: Add batman-adv meshing protocol")
Reported-by: syzbot+9d7405c7faa390e60b4e@syzkaller.appspotmail.com
Reported-by: syzbot+7d20bc3f1ddddc0f9079@syzkaller.appspotmail.com
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2018-12-31 22:47:50 +01:00
..
bat_algo.c batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
bat_algo.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
bat_iv_ogm.c batman-adv: Add inconsistent gateway netlink dump detection 2018-11-12 10:41:51 +01:00
bat_iv_ogm.h batman-adv: Unify include guards style 2018-07-07 22:02:17 +02:00
bat_v_elp.c batman-adv: Use explicit tvlv padding for ELP packets 2018-11-12 10:41:29 +01:00
bat_v_elp.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
bat_v_ogm.c batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
bat_v_ogm.h batman-adv: Unify include guards style 2018-07-07 22:02:17 +02:00
bat_v.c batman-adv: Add inconsistent gateway netlink dump detection 2018-11-12 10:41:51 +01:00
bat_v.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
bitarray.c batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
bitarray.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
bridge_loop_avoidance.c batman-adv: Add inconsistent claim netlink dump detection 2018-11-12 10:41:51 +01:00
bridge_loop_avoidance.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
debugfs.c batman-adv: Add includes for deprecation warning 2018-11-12 10:41:50 +01:00
debugfs.h batman-adv: Mark debugfs functionality as deprecated 2018-09-14 10:50:26 +02:00
distributed-arp-table.c batman-adv: Add inconsistent dat netlink dump detection 2018-11-12 10:41:51 +01:00
distributed-arp-table.h batman-adv: add DAT cache netlink support 2018-03-14 10:15:08 +01:00
fragmentation.c batman-adv: Expand merged fragment buffer for full packet 2018-11-12 10:41:29 +01:00
fragmentation.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
gateway_client.c batman-adv: Add inconsistent gateway netlink dump detection 2018-11-12 10:41:51 +01:00
gateway_client.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
gateway_common.c batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
gateway_common.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
hard-interface.c batman-adv: Avoid WARN on net_device without parent in netns 2018-12-30 13:34:12 +01:00
hard-interface.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
hash.c batman-adv: Store modification counter via hash helpers 2018-11-12 10:41:51 +01:00
hash.h batman-adv: Store modification counter via hash helpers 2018-11-12 10:41:51 +01:00
icmp_socket.c batman-adv: Mark debugfs functionality as deprecated 2018-09-14 10:50:26 +02:00
icmp_socket.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
Kconfig batman-adv: enable MCAST by default at compile time 2018-11-12 10:41:51 +01:00
log.c batman-adv: Allow to use BATMAN_ADV_DEBUG without BATMAN_ADV_DEBUGFS 2018-11-12 10:41:50 +01:00
log.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
main.c batman-adv: Add inconsistent hardif netlink dump detection 2018-11-12 10:41:51 +01:00
main.h batman-adv: Add inconsistent hardif netlink dump detection 2018-11-12 10:41:51 +01:00
Makefile batman-adv: Provide debug messages as trace events 2018-09-15 09:51:08 +02:00
multicast.c batman-adv: Add inconsistent multicast netlink dump detection 2018-11-12 10:41:51 +01:00
multicast.h batman-adv: add multicast flags netlink support 2018-03-14 10:15:34 +01:00
netlink.c batman-adv: Add inconsistent hardif netlink dump detection 2018-11-12 10:41:51 +01:00
netlink.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
network-coding.c batman-adv: Prevent duplicated nc_node entry 2018-09-06 13:55:58 +02:00
network-coding.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
originator.c batman-adv: Move OGM rebroadcast stats to orig_ifinfo 2018-09-15 09:51:10 +02:00
originator.h batman-adv: Move OGM rebroadcast stats to orig_ifinfo 2018-09-15 09:51:10 +02:00
routing.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-23 11:31:58 -04:00
routing.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
send.c batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
send.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
soft-interface.c batman-adv: Force mac header to start of data on xmit 2018-12-31 22:47:50 +01:00
soft-interface.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
sysfs.c batman-adv: Fix segfault when writing to sysfs elp_interval 2018-09-06 13:54:48 +02:00
sysfs.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
tp_meter.c batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
tp_meter.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
trace.c batman-adv: Improve includes for trace functionality 2018-11-12 10:41:50 +01:00
trace.h batman-adv: Improve includes for trace functionality 2018-11-12 10:41:50 +01:00
translation-table.c batman-adv: Add inconsistent local TT netlink dump detection 2018-11-12 10:41:51 +01:00
translation-table.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
tvlv.c batman-adv: Prevent duplicated tvlv handler 2018-09-06 14:37:13 +02:00
tvlv.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
types.h batman-adv: Add inconsistent gateway netlink dump detection 2018-11-12 10:41:51 +01:00