Jesper Dangaard Brouer 97e19cce05 bpf: reserve xdp_frame size in xdp headroom ... Commit 6dfb970d3d ("xdp: avoid leaking info stored in frame data on page reuse") tried to allow user/bpf_prog to (re)use area used by xdp_frame (stored in frame headroom), by memset clearing area when bpf_xdp_adjust_head give bpf_prog access to headroom area. The mentioned commit had two bugs. (1) Didn't take bpf_xdp_adjust_meta into account. (2) a combination of bpf_xdp_adjust_head calls, where xdp->data is moved into xdp_frame section, can cause clearing xdp_frame area again for area previously granted to bpf_prog. After discussions with Daniel, we choose to implement a simpler solution to the problem, which is to reserve the headroom used by xdp_frame info. This also avoids the situation where bpf_prog is allowed to adjust/add headers, and then XDP_REDIRECT later drops the packet due to lack of headroom for the xdp_frame. This would likely confuse the end-user. Fixes: 6dfb970d3d ("xdp: avoid leaking info stored in frame data on page reuse") Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>		2018-04-19 17:52:12 +02:00
..
6lowpan
9p	net/9p/client.c: fix potential refcnt problem of trans module	2018-04-05 21:36:23 -07:00
802
8021q	vlan: also check phy_driver ts_info for vlan's real device	2018-04-01 20:53:50 -04:00
appletalk	net: Use octal not symbolic permissions	2018-03-26 12:07:48 -04:00
atm	net: Use octal not symbolic permissions	2018-03-26 12:07:48 -04:00
ax25	net: Use octal not symbolic permissions	2018-03-26 12:07:48 -04:00
batman-adv	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-04-01 19:49:34 -04:00
bluetooth	Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth	2018-04-08 17:19:15 -04:00
bpf	bpf: making bpf_prog_test run aware of possible data_end ptr change	2018-04-18 23:34:16 +02:00
bridge	net: bridge: disable bridge MTU auto tuning if it was set manually	2018-03-31 22:19:00 -04:00
caif	net: Drop pernet_operations::async	2018-03-27 13:18:09 -04:00
can	net: Drop pernet_operations::async	2018-03-27 13:18:09 -04:00
ceph	The big ticket items are:	2018-04-10 12:25:30 -07:00
core	bpf: reserve xdp_frame size in xdp headroom	2018-04-19 17:52:12 +02:00
dcb
dccp	dccp: initialize ireq->ir_mark	2018-04-07 22:32:31 -04:00
decnet	net: Use octal not symbolic permissions	2018-03-26 12:07:48 -04:00
dns_resolver	KEYS: DNS: limit the length of option strings	2018-04-17 13:42:58 -04:00
dsa	net: dsa: Discard frames from unused ports	2018-04-08 10:34:49 -04:00
ethernet
hsr
ieee802154	inet: frags: fix ip6frag_low_thresh boundary	2018-04-04 12:04:59 -04:00
ife
ipv4	tcp: implement mmap() for zero copy receive	2018-04-16 18:26:37 -04:00
ipv6	ipv6: send netlink notifications for manually configured addresses	2018-04-17 14:03:56 -04:00
iucv	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-03-23 11:31:58 -04:00
kcm	net: Drop pernet_operations::async	2018-03-27 13:18:09 -04:00
key	net: Drop pernet_operations::async	2018-03-27 13:18:09 -04:00
l2tp	l2tp: fix race in duplicate tunnel detection	2018-04-11 17:41:27 -04:00
l3mdev
lapb
llc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-04-01 19:49:34 -04:00
mac80211	We have a fair number of patches, but many of them are from the	2018-03-29 16:23:26 -04:00
mac802154	net/mac802154: disambiguate mac80215 vs mac802154 trace events	2018-03-28 22:55:18 +02:00
mpls	net: Drop pernet_operations::async	2018-03-27 13:18:09 -04:00
ncsi	net/ncsi: Refactor MAC, VLAN filters	2018-04-17 13:50:58 -04:00
netfilter	ipv6: Count interface receive statistics on the ingress netdev	2018-04-17 13:39:51 -04:00
netlabel
netlink	netlink: fix uninit-value in netlink_sendmsg	2018-04-07 22:32:31 -04:00
netrom	net: Use octal not symbolic permissions	2018-03-26 12:07:48 -04:00
nfc
nsh
openvswitch	ovs: Remove rtnl_lock() from ovs_exit_net()	2018-03-29 13:47:54 -04:00
packet	net: Drop pernet_operations::async	2018-03-27 13:18:09 -04:00
phonet	net: Drop pernet_operations::async	2018-03-27 13:18:09 -04:00
psample
qrtr	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-03-06 01:20:46 -05:00
rds	rds: MP-RDS may use an invalid c_path	2018-04-11 10:24:01 -04:00
rfkill
rose	net: Use octal not symbolic permissions	2018-03-26 12:07:48 -04:00
rxrpc	rxrpc: Fix undefined packet handling	2018-04-04 11:04:08 -04:00
sched	net_sched: fix a missing idr_remove() in u32_delete_key()	2018-04-07 12:36:45 -04:00
sctp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-04-09 17:04:10 -07:00
smc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-04-01 19:49:34 -04:00
strparser	strparser: Fix sign of err codes	2018-03-27 11:00:18 -04:00
sunrpc	Chuck Lever did a bunch of work on nfsd tracepoints, on RDMA, and on	2018-04-05 19:15:29 -07:00
switchdev
tipc	tipc: use the right skb in tipc_sk_fill_sock_diag()	2018-04-08 12:34:29 -04:00
tls	tls: support for Inline tls record	2018-03-31 23:37:32 -04:00
unix	af_unix: remove redundant lockdep class	2018-04-04 11:13:40 -04:00
vmw_vsock
wimax
wireless	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2018-03-31 23:33:04 -04:00
x25	net: Use octal not symbolic permissions	2018-03-26 12:07:48 -04:00
xfrm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-04-01 19:49:34 -04:00
compat.c	net: socket: add __compat_sys_...msg() helpers; remove in-kernel calls to compat syscalls	2018-04-02 20:15:20 +02:00
Kconfig	page_pool: refurbish version of page_pool code	2018-04-17 10:50:29 -04:00
Makefile
socket.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2018-04-05 11:56:35 -07:00
sysctl_net.c	net: Drop pernet_operations::async	2018-03-27 13:18:09 -04:00