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android_kernel_oneplus_msm8998/net
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Sven Eckelmann b2942d59a3 batman-adv: Force mac header to start of data on xmit 
commit 9114daa825fc3f335f9bea3313ce667090187280 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-20 10:13:20 +01:00
..
6lowpan 6lowpan: iphc: reset mac_header after decompress to fix panic 2018-10-10 08:52:04 +02:00
9p 9p/net: put a lower bound on msize 2019-01-13 10:05:33 +01:00
802
8021q vlan: also check phy_driver ts_info for vlan's real device 2018-04-13 19:50:25 +02:00
appletalk
atm net: atm: Fix potential Spectre v1 2018-05-16 10:06:51 +02:00
ax25 ax25: fix a use-after-free in ax25_fillin_cb() 2019-01-13 10:05:27 +01:00
batman-adv batman-adv: Force mac header to start of data on xmit 2019-02-20 10:13:20 +01:00
bluetooth Bluetooth: Fix unnecessary error message for HCI request completion 2019-02-20 10:13:10 +01:00
bridge net: bridge: Fix ethernet header pointer before check skb forwardable 2019-02-06 19:43:03 +01:00
caif net: caif: Add a missing rcu_read_unlock() in caif_flow_cb 2018-09-05 09:18:34 +02:00
can can: bcm: check timer values before ktime conversion 2019-02-06 19:43:04 +01:00
ceph libceph: avoid KEEPALIVE_PENDING races in ceph_con_keepalive() 2019-02-20 10:13:20 +01:00
core net: fix pskb_trim_rcsum_slow() with odd trim offset 2019-02-08 11:25:33 +01:00
dcb net: dcb: For wild-card lookups, use priority -1, not 0 2018-09-19 22:48:58 +02:00
dccp dccp: fool proof ccid_hc_[rt]x_parse_options() 2019-02-20 10:13:15 +01:00
decnet dn_getsockoptdecnet: move nf_{get/set}sockopt outside sock lock 2018-02-25 11:03:38 +01:00
dns_resolver KEYS: DNS: fix parsing multiple options 2018-07-22 14:25:54 +02:00
dsa net: dsa: slave: Don't propagate flag changes on down slave interfaces 2019-02-20 10:13:15 +01:00
ethernet net: introduce device min_header_len 2017-02-18 16:39:27 +01:00
hsr net/hsr: fix a warning message 2015-11-23 14:56:15 -05:00
ieee802154 inet: frags: fix ip6frag_low_thresh boundary 2019-02-08 11:25:32 +01:00
ipv4 net: ipv4: do not handle duplicate fragments as overlapping 2019-02-08 11:25:33 +01:00
ipv6 xfrm6_tunnel: Fix spi check in __xfrm6_tunnel_alloc_spi 2019-02-20 10:13:10 +01:00
ipx ipx: call ipxitf_put() in ioctl error path 2017-05-25 14:30:13 +02:00
irda irda: Only insert new objects into the global database via setsockopt 2018-09-15 09:40:40 +02:00
iucv af_iucv: Move sockaddr length checks to before accessing sa_family in bind and connect handlers 2018-11-10 07:41:35 -08:00
key af_key: Always verify length of provided sadb_key 2018-06-16 09:54:25 +02:00
l2tp l2tp: fix reading optional fields of L2TPv3 2019-02-06 19:43:06 +01:00
l3mdev net: Add netif_is_l3_slave 2015-10-07 04:27:43 -07:00
lapb
llc llc: do not use sk_eat_skb() 2018-12-01 09:46:34 +01:00
mac80211 mac80211: ensure that mgmt tx skbs have tailroom for encryption 2019-02-20 10:13:19 +01:00
mac802154 net: mac802154: tx: expand tailroom if necessary 2018-09-09 20:04:32 +02:00
mpls mpls, nospec: Sanitize array index in mpls_label_ok() 2018-03-11 16:19:47 +01:00
netfilter netfilter: nf_tables: fix oops when inserting an element into a verdict map 2018-12-01 09:46:40 +01:00
netlabel netlabel: check for IPV4MASK in addrinfo_get 2018-10-20 09:52:36 +02:00
netlink netlink: Don't shift on 64 for ngroups 2018-08-09 12:19:28 +02:00
netrom netrom: switch to sock timer API 2019-02-06 19:43:06 +01:00
nfc NFC: Fix possible memory corruption when handling SHDLC I-Frame commands 2018-09-29 03:08:51 -07:00
openvswitch openvswitch: Avoid OOB read when parsing flow nlattrs 2019-02-06 19:43:03 +01:00
packet packet: Do not leak dev refcounts on error exit 2019-01-26 09:42:49 +01:00
phonet phonet: properly unshare skbs in phonet_rcv() 2016-01-31 11:29:00 -08:00
rds rds: avoid unenecessary cong_update in loop transport 2018-07-22 14:25:54 +02:00
rfkill rfkill: gpio: fix memory leak in probe error path 2018-05-16 10:06:51 +02:00
rose net/rose: fix NULL ax25_cb kernel panic 2019-02-06 19:43:06 +01:00
rxrpc rxrpc: check return value of skb_to_sgvec always 2018-04-13 19:50:23 +02:00
sched net_sched: refetch skb protocol for each filter 2019-02-06 19:43:03 +01:00
sctp sctp: allocate sctp_sockaddr_entry with kzalloc 2019-01-26 09:42:51 +01:00
sunrpc sunrpc: handle ENOMEM in rpcb_getport_async 2019-01-26 09:42:51 +01:00
switchdev switchdev: pass pointer to fib_info instead of copy 2016-06-24 10:18:16 -07:00
tipc tipc: use destination length for copy string 2019-02-20 10:13:14 +01:00
unix net: drop write-only stack variable 2018-11-10 07:41:34 -08:00
vmw_vsock VSOCK: Send reset control packet when socket is partially bound 2019-01-13 10:05:28 +01:00
wimax
wireless cfg80211: reg: Init wiphy_idx in regulatory_hint_core() 2018-11-10 07:41:33 -08:00
x25 net: x25: fix one potential use-after-free issue 2018-04-13 19:50:07 +02:00
xfrm xfrm: refine validation of template and selector families 2019-02-20 10:13:20 +01:00
compat.c sock: Make sock->sk_stamp thread-safe 2019-01-13 10:05:28 +01:00
Kconfig Make DST_CACHE a silent config option 2018-02-25 11:03:37 +01:00
Makefile net: Introduce L3 Master device abstraction 2015-09-29 20:40:32 -07:00
socket.c net: socket: fix a missing-check bug 2018-11-10 07:41:41 -08:00
sysctl_net.c net: Use ns_capable_noaudit() when determining net sysctl permissions 2016-09-15 08:27:50 +02:00