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83ebb9ec73
linux/net
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Szymon Janc 83ebb9ec73 Bluetooth: Fix not registering BR/EDR SMP channel with force_bredr flag 
If force_bredr is set SMP BR/EDR channel should also be for non-SC
capable controllers. Since hcidev flag is persistent wrt power toggle
it can be already set when calling smp_register(). This resulted in
SMP BR/EDR channel not being registered even if HCI_FORCE_BREDR_SMP
flag was set.

This also fix NULL pointer dereference when trying to disable
force_bredr after power cycle.

BUG: unable to handle kernel NULL pointer dereference at 0000000000000388
IP: [<ffffffffc0493ad8>] smp_del_chan+0x18/0x80 [bluetooth]

Call Trace:
[<ffffffffc04950ca>] force_bredr_smp_write+0xba/0x100 [bluetooth]
[<ffffffff8133be14>] full_proxy_write+0x54/0x90
[<ffffffff81245967>] __vfs_write+0x37/0x160
[<ffffffff813617f7>] ? selinux_file_permission+0xd7/0x110
[<ffffffff81356fbd>] ? security_file_permission+0x3d/0xc0
[<ffffffff810eb5b2>] ? percpu_down_read+0x12/0x50
[<ffffffff812462a5>] vfs_write+0xb5/0x1a0
[<ffffffff812476f5>] SyS_write+0x55/0xc0
[<ffffffff817eb872>] entry_SYSCALL_64_fastpath+0x1a/0xa4
Code: 48 8b 45 f0 eb c1 0f 1f 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f
      44 00 00 f6 05 c6 3b 02 00 04 55 48 89 e5 41 54 53 49 89 fc 75
      4b
      <49> 8b 9c 24 88 03 00 00 48 85 db 74 31 49 c7 84 24 88 03 00 00
RIP  [<ffffffffc0493ad8>] smp_del_chan+0x18/0x80 [bluetooth]
RSP <ffff8802aee3bd90>
CR2: 0000000000000388

Signed-off-by: Szymon Janc <szymon.janc@codecoup.pl>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2016-09-19 20:19:34 +02:00
..
6lowpan 6lowpan: ndisc: no overreact if no short address is available 2016-09-19 20:19:34 +02:00
9p 9p/trans_virtio: use kvfree() for iov_iter_get_pages_alloc() 2016-08-09 13:42:36 +03:00
802
8021q net: remove type_check from dev_get_nest_level() 2016-08-13 15:15:54 -07:00
appletalk appletalk: use IS_ENABLED() instead of checking for built-in or module 2016-09-10 21:19:10 -07:00
atm lec: use IS_ENABLED() instead of checking for built-in or module 2016-09-10 21:19:10 -07:00
ax25 AX.25: Close socket connection on session completion 2016-06-18 20:55:34 -07:00
batman-adv batman: make netlink attributes const 2016-09-01 14:09:00 -07:00
bluetooth Bluetooth: Fix not registering BR/EDR SMP channel with force_bredr flag 2016-09-19 20:19:34 +02:00
bridge net: bridge: add helper to call /sbin/bridge-stp 2016-09-13 11:21:31 -04:00
caif caif: Remove unneeded header file 2016-06-28 05:26:14 -04:00
can can: only call can_stat_update with procfs 2016-06-23 11:23:49 +02:00
ceph libceph: using kfree_rcu() to simplify the code 2016-08-08 21:41:42 +02:00
core net: core: Add offload stats to if_stats_msg 2016-09-18 22:33:42 -04:00
dcb
dccp Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2016-07-29 17:38:46 -07:00
decnet net: fix decnet rtnexthop parsing 2016-07-05 14:08:47 -07:00
dns_resolver
dsa net-next: dsa: add Qualcomm tag RX/TX handler 2016-09-16 04:31:51 -04:00
ethernet
hsr
ieee802154 ieee802154: 6lowpan: fix intra pan id check 2016-07-08 13:23:12 +02:00
ipv4 ip_tunnel: add collect_md mode to IPIP tunnel 2016-09-17 10:13:07 -04:00
ipv6 ipv6: Export p6_route_input_lookup symbol 2016-09-19 01:25:22 -04:00
ipx
irda net/irda: remove pointless assignment/check 2016-08-19 18:07:24 -07:00
iucv Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2016-07-29 17:38:46 -07:00
kcm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-09-12 15:52:44 -07:00
key
l2tp l2tp: constify net_device_ops structures 2016-09-17 10:07:23 -04:00
l3mdev net: ipv6: Remove l3mdev_get_saddr6 2016-09-10 23:12:53 -07:00
lapb net/lapb: tuse %*ph to dump buffers 2016-05-29 22:33:25 -07:00
llc llc: switch type to bool as the timeout is only tested versus 0 2016-09-17 10:05:05 -04:00
mac80211 This time we have various things - all across the board: 2016-09-18 22:29:08 -04:00
mac802154 mac802154: use rate limited warnings for malformed frames 2016-09-19 20:19:34 +02:00
mpls mpls: get rid of trivial returns 2016-09-01 10:13:15 -07:00
ncsi net/ncsi: avoid maybe-uninitialized warning 2016-07-25 10:32:59 -07:00
netfilter net: Add _nf_(un)register_hooks symbols 2016-09-19 01:25:22 -04:00
netlabel netlabel: Implement CALIPSO config functions for SMACK. 2016-06-27 15:06:18 -04:00
netlink netlink: don't forget to release a rhashtable_iter structure 2016-09-07 17:29:38 -07:00
netrom
nfc NFC: digital: Fix RTOX supervisor PDU handling 2016-07-11 02:02:03 +02:00
openvswitch openvswitch: use percpu flow stats 2016-09-18 22:14:01 -04:00
packet Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-07-24 00:53:32 -04:00
phonet
qrtr
rds RDS: add __printf format attribute to error reporting functions 2016-08-08 16:16:21 -07:00
rfkill
rose rose: limit sk_filter trim to payload 2016-07-13 11:53:40 -07:00
rxrpc rxrpc: Add config to inject packet loss 2016-09-17 11:24:04 +01:00
sched sched: add and use qdisc_skb_head helpers 2016-09-19 01:47:18 -04:00
sctp sctp: Remove some redundant code 2016-09-19 01:34:01 -04:00
strparser kcm: Remove TCP specific references from kcm and strparser 2016-08-28 23:32:41 -04:00
sunrpc SUNRPC: Silence WARN_ON when NFSv4.1 over RDMA is in use 2016-08-24 22:32:55 -04:00
switchdev rtnetlink: fdb dump: optimize by saving last interface markers 2016-09-01 16:56:15 -07:00
tipc tipc: fix possible memory leak in tipc_udp_enable() 2016-09-13 11:28:32 -04:00
unix af_unix: split 'u->readlock' into two: 'iolock' and 'bindlock' 2016-09-04 13:29:29 -07:00
vmw_vsock vhost/vsock: drop space available check for TX vq 2016-08-15 05:05:21 +03:00
wimax
wireless This time we have various things - all across the board: 2016-09-18 22:29:08 -04:00
x25 net: x25: remove null checks on arrays calling_ae and called_ae 2016-09-09 18:13:30 -07:00
xfrm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-09-12 15:52:44 -07:00
compat.c packet: compat support for sock_fprog 2016-06-09 23:41:03 -07:00
Kconfig strparser: Stream parser for messages 2016-08-17 19:36:23 -04:00
Makefile strparser: Stream parser for messages 2016-08-17 19:36:23 -04:00
socket.c
sysctl_net.c net: make net namespace sysctls belong to container's owner 2016-08-14 21:08:58 -07:00