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Alexei Starovoitov 198bf1b046 net: sock: fix access via invalid file descriptor 
0day robot reported the following crash:
[   21.233581] BUG: unable to handle kernel NULL pointer dereference at 0000000000000007
[   21.234709] IP: [<ffffffff8156ebda>] sk_attach_bpf+0x39/0xc2

It's due to bpf_prog_get() returning ERR_PTR.
Check it properly.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Fixes: 89aa075832b0 ("net: sock: allow eBPF programs to be attached to sockets")
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-10 23:34:27 -05:00
..
6lowpan
net/6lowpan: Remove FSF address from GPL statement.
2014-12-05 12:43:04 +01:00
9p
9p/trans_virtio: enable VQs early
2014-10-15 10:25:04 +10:30
802
net: set name_assign_type in alloc_netdev()
2014-07-15 16:12:48 -07:00
8021q
vlan: Pass ethtool get_ts_info queries to real device.
2014-11-21 15:35:53 -05:00
appletalk
new helper: memcpy_from_msg()
2014-11-24 04:28:48 -05:00
atm
put iov_iter into msghdr
2014-12-09 16:29:03 -05:00
ax25
new helper: memcpy_from_msg()
2014-11-24 04:28:48 -05:00
batman-adv
batman-adv: replace strnicmp with strncasecmp
2014-10-14 02:18:24 +02:00
bluetooth
Merge branch 'for-davem-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-12-10 13:17:23 -05:00
bridge
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next
2014-12-05 20:56:46 -08:00
caif
put iov_iter into msghdr
2014-12-09 16:29:03 -05:00
can
can: fix spelling errors
2014-12-07 21:22:05 +01:00
ceph
libceph: change from BUG to WARN for __remove_osd() asserts
2014-11-13 22:26:34 +03:00
core
net: sock: fix access via invalid file descriptor
2014-12-10 23:34:27 -05:00
dcb
dcbnl : Disable software interrupts before taking dcb_lock
2014-11-16 14:50:52 -05:00
dccp
net: introduce helper macro for_each_cmsghdr
2014-12-10 22:41:55 -05:00
decnet
new helper: memcpy_to_msg()
2014-11-24 04:28:51 -05:00
dns_resolver
Merge commit 'v3.16' into next
2014-10-01 00:44:04 +10:00
dsa
net: dsa: replace count*size kzalloc by kcalloc
2014-11-16 14:41:39 -05:00
ethernet
net: Add function for parsing the header length out of linear ethernet frames
2014-09-05 17:47:02 -07:00
hsr
net/hsr: Remove left-over never-true conditional code.
2014-07-11 15:04:40 -07:00
ieee802154
Merge tag 'master-2014-12-08' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next
2014-12-09 18:12:03 -05:00
ipv4
net: introduce helper macro for_each_cmsghdr
2014-12-10 22:41:55 -05:00
ipv6
net: introduce helper macro for_each_cmsghdr
2014-12-10 22:41:55 -05:00
ipx
switch ipxrtr_route_packet() from iovec to msghdr
2014-11-24 04:28:49 -05:00
irda
irda: Convert function pointer arrays and uses to const
2014-12-10 15:33:16 -05:00
iucv
net: introduce helper macro for_each_cmsghdr
2014-12-10 22:41:55 -05:00
key
new helper: memcpy_from_msg()
2014-11-24 04:28:48 -05:00
l2tp
ip_generic_getfrag, udplite_getfrag: switch to passing msghdr
2014-12-09 16:28:22 -05:00
lapb
lapb: move EXPORT_SYMBOL after functions.
2014-10-24 15:51:42 -04:00
llc
llc: Make llc_sap_action_t function pointer arrays const
2014-12-10 15:21:24 -05:00
mac80211
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
2014-12-08 13:58:58 -05:00
mac802154
mac802154: use goto label on failure
2014-12-05 14:18:42 +01:00
mpls
net: Remove MPLS GSO feature.
2014-11-05 23:52:33 -08:00
netfilter
dst: no need to take reference on DST_NOCACHE dsts
2014-12-09 16:08:17 -05:00
netlabel
netlabel: kernel-doc warning fix
2014-10-09 01:40:05 -04:00
netlink
netlink: use jhash as hashfn for rhashtable
2014-12-10 15:17:45 -05:00
netrom
new helper: memcpy_from_msg()
2014-11-24 04:28:48 -05:00
nfc
Merge tag 'master-2014-12-08' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next
2014-12-09 18:12:03 -05:00
openvswitch
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2014-12-10 15:48:20 -05:00
packet
put iov_iter into msghdr
2014-12-09 16:29:03 -05:00
phonet
new helper: memcpy_from_msg()
2014-11-24 04:28:48 -05:00
rds
net: introduce helper macro for_each_cmsghdr
2014-12-10 22:41:55 -05:00
rfkill
net: rfkill: kernel-doc warning fixes
2014-10-09 11:16:15 +02:00
rose
new helper: memcpy_from_msg()
2014-11-24 04:28:48 -05:00
rxrpc
net: introduce helper macro for_each_cmsghdr
2014-12-10 22:41:55 -05:00
sched
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2014-12-10 15:48:20 -05:00
sctp
net: introduce helper macro for_each_cmsghdr
2014-12-10 22:41:55 -05:00
sunrpc
SUNRPC: Fix locking around callback channel reply receive
2014-11-19 12:03:20 -05:00
switchdev
bridge: call netdev_sw_port_stp_update when bridge port STP status changes
2014-12-02 20:01:22 -08:00
tipc
tipc: fix broadcast wakeup contention after congestion
2014-12-10 14:45:33 -05:00
unix
put iov_iter into msghdr
2014-12-09 16:29:03 -05:00
vmw_vsock
put iov_iter into msghdr
2014-12-09 16:29:03 -05:00
wimax
wimax: convert printk to pr_foo()
2014-10-07 20:28:44 -04:00
wireless
cfg80211: remove unneeded initialisations in nl80211_set_reg
2014-11-28 14:54:31 +01:00
x25
new helper: memcpy_from_msg()
2014-11-24 04:28:48 -05:00
xfrm
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next
2014-12-08 21:30:21 -05:00
compat.c
put iov_iter into msghdr
2014-12-09 16:29:03 -05:00
Kconfig
net: introduce generic switch devices support
2014-12-02 20:01:20 -08:00
Makefile
net: introduce generic switch devices support
2014-12-02 20:01:20 -08:00
nonet.c
…
socket.c
put iov_iter into msghdr
2014-12-09 16:29:03 -05:00
sysctl_net.c
…