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Daniel Borkmann 3a461da1d0 cls_bpf: reset class and reuse major in da 
There are two issues with the current code. First one is that we need
to set res->class to 0 in case we use non-default classid matching.

This is important for the case where cls_bpf was initially set up with
an optional binding to a default class with tcf_bind_filter(), where
the underlying qdisc implements bind_tcf() that fills res->class and
tests for it later on when doing the classification. Convention for
these cases is that after tc_classify() was called, such qdiscs (atm,
drr, qfq, cbq, hfsc, htb) first test class, and if 0, then they lookup
based on classid.

Second, there's a bug with da mode, where res->classid is only assigned
a 16 bit minor, but it needs to expand to the full 32 bit major/minor
combination instead, therefore we need to expand with the bound major.
This is fine as classes belonging to a classful qdisc must share the
same major.

Fixes: 045efa82ff ("cls_bpf: introduce integrated actions")
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2016-03-18 19:35:21 -04:00
..
6lowpan 6lowpan: iphc: fix SAM/DAM bit comment 2016-03-10 19:51:29 +01:00
9p Rework and error handling fixes, primarily in the fscatch and fd transports. 2016-01-24 12:39:09 -08:00
802
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8021q vlan: propagate gso_max_segs 2016-03-17 21:05:01 -04:00
appletalk appletalk: fix erroneous return value 2016-02-18 14:59:34 -05:00
atm net: Generalise wq_has_sleeper helper 2015-11-30 14:47:33 -05:00
ax25 ax25: add link layer header validation function 2016-03-09 22:13:01 -05:00
batman-adv batman-adv: clarify CFG80211 dependency 2016-03-02 13:45:47 -05:00
bluetooth Bluetooth: Fix potential buffer overflow with Add Advertising 2016-03-11 16:28:43 +01:00
bridge bridge: fix potential use-after-free when hook returns QUEUE or STOLEN verdict 2016-03-14 15:46:41 -04:00
caif net: caif: fix misleading indentation 2016-03-14 13:09:50 -04:00
can can: avoid using timeval for uapi 2015-10-13 17:42:34 +02:00
ceph libceph: don't spam dmesg with stray reply warnings 2016-02-24 20:28:51 +01:00
core net: dst_cache_per_cpu_dst_set() can be static 2016-03-18 17:45:08 -04:00
dcb net/dcb: make dcbnl.c explicitly non-modular 2015-10-09 07:52:27 -07:00
dccp tcp/dccp: remove obsolete WARN_ON() in icmp handlers 2016-03-17 21:06:40 -04:00
decnet net: add validation for the socket syscall protocol argument 2015-12-14 16:09:30 -05:00
dns_resolver net: dns_resolver: convert time_t to time64_t 2015-11-18 16:27:46 -05:00
dsa net: dsa: refine netdev event notifier 2016-03-14 16:05:32 -04:00
ethernet eth: Pull header from first fragment via eth_get_headlen 2016-02-24 13:58:05 -05:00
hsr net/hsr: fix a warning message 2015-11-23 14:56:15 -05:00
ieee802154 ieee802154: 6lowpan: fix return of netdev notifier 2016-02-23 20:29:40 +01:00
ipv4 tcp/dccp: remove obsolete WARN_ON() in icmp handlers 2016-03-17 21:06:40 -04:00
ipv6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2016-03-14 22:10:25 -04:00
ipx
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irda irda: fix a potential use-after-free in ircomm_param_request 2016-01-29 22:56:46 -08:00
iucv af_iucv: Validate socket address length in iucv_sock_bind() 2016-01-19 14:21:08 -05:00
kcm kcm: Add receive message timeout 2016-03-09 16:36:15 -05:00
key af_key: fix two typos 2015-10-23 03:05:19 -07:00
l2tp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-02-23 00:09:14 -05:00
l3mdev net: l3mdev: address selection should only consider devices in L3 domain 2016-02-26 14:22:26 -05:00
lapb
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llc af_llc: fix types on llc_ui_wait_for_conn 2016-02-17 16:12:13 -05:00
mac80211 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-03-08 12:34:12 -05:00
mac802154 mac802154: Fixes kernel oops when unloading a radio driver 2016-02-23 20:29:40 +01:00
mpls mpls: autoload lwt module 2016-02-21 22:00:28 -05:00
netfilter netfilter: nf_conntrack: consolidate lock/unlock into unlock_wait 2016-03-15 01:10:42 +01:00
netlabel netlabel: do not initialise statics to NULL 2016-03-07 11:08:26 -05:00
netlink nfnetlink: Revert "nfnetlink: add support for memory mapped netlink" 2016-02-18 11:42:22 -05:00
netrom
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nfc NFC: Close a race condition in llcp_sock_getname() 2016-02-25 08:41:01 +01:00
openvswitch openvswitch: allow output of MPLS packets on tunnel vports 2016-03-18 18:26:38 -04:00
packet packet: validate variable length ll headers 2016-03-09 22:13:01 -05:00
phonet sock: struct proto hash function may error 2016-02-11 03:54:14 -05:00
rds RDS: IB: Support Fastreg MR (FRMR) memory registration mode 2016-03-02 14:13:19 -05:00
rfkill Here's another round of updates for -next: 2016-03-01 17:03:27 -05:00
rose
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rxrpc rxrpc: Replace all unsigned with unsigned int 2016-03-13 15:14:57 -04:00
sched cls_bpf: reset class and reuse major in da 2016-03-18 19:35:21 -04:00
sctp sctp: consolidate local_bh_disable/enable + spin_lock/unlock to _bh variant 2016-03-16 19:20:50 -04:00
sunrpc One fix for a bug that could cause a NULL write past the end of a buffer 2016-02-25 19:31:01 -08:00
switchdev net: ndo_fdb_dump should report -EMSGSIZE to rtnl_fdb_dump. 2016-02-26 15:04:02 -05:00
tipc tipc: make sure IPv6 header fits in skb headroom 2016-03-14 12:23:12 -04:00
unix Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-02-23 00:09:14 -05:00
vmw_vsock vsock: Fix blocking ops call in prepare_to_wait 2016-02-13 05:57:39 -05:00
wimax
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wireless Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-03-08 12:34:12 -05:00
x25
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xfrm net: preserve IP control block during GSO segmentation 2016-01-15 14:35:24 -05:00
Kconfig net: add a hardware buffer management helper API 2016-03-14 12:19:46 -04:00
Makefile kcm: Kernel Connection Multiplexor module 2016-03-09 16:36:14 -05:00
compat.c
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socket.c net: Fix use after free in the recvmmsg exit path 2016-03-14 12:41:49 -04:00
sysctl_net.c net: sysctl: fix a kmemleak warning 2015-10-23 06:22:08 -07:00