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Gopal Tiwari 0f47da6187 Bluetooth: Fix null pointer dereference in amp_read_loc_assoc_final_data 
[ Upstream commit e8bd76ede155fd54d8c41d045dda43cd3174d506 ]

kernel panic trace looks like:

 #5 [ffffb9e08698fc80] do_page_fault at ffffffffb666e0d7
 #6 [ffffb9e08698fcb0] page_fault at ffffffffb70010fe
    [exception RIP: amp_read_loc_assoc_final_data+63]
    RIP: ffffffffc06ab54f  RSP: ffffb9e08698fd68  RFLAGS: 00010246
    RAX: 0000000000000000  RBX: ffff8c8845a5a000  RCX: 0000000000000004
    RDX: 0000000000000000  RSI: ffff8c8b9153d000  RDI: ffff8c8845a5a000
    RBP: ffffb9e08698fe40   R8: 00000000000330e0   R9: ffffffffc0675c94
    R10: ffffb9e08698fe58  R11: 0000000000000001  R12: ffff8c8b9cbf6200
    R13: 0000000000000000  R14: 0000000000000000  R15: ffff8c8b2026da0b
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
 #7 [ffffb9e08698fda8] hci_event_packet at ffffffffc0676904 [bluetooth]
 #8 [ffffb9e08698fe50] hci_rx_work at ffffffffc06629ac [bluetooth]
 #9 [ffffb9e08698fe98] process_one_work at ffffffffb66f95e7

hcon->amp_mgr seems NULL triggered kernel panic in following line inside
function amp_read_loc_assoc_final_data

        set_bit(READ_LOC_AMP_ASSOC_FINAL, &mgr->state);

Fixed by checking NULL for mgr.

Signed-off-by: Gopal Tiwari <gtiwari@redhat.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-03-07 11:25:57 +01:00
..
bnep
Bluetooth: bnep: fix possible might sleep error in bnep_session
2017-08-30 10:21:52 +02:00
cmtp
Bluetooth: cmtp: fix possible might sleep error in cmtp_session
2017-08-30 10:21:52 +02:00
hidp
Bluetooth: hidp: fix buffer overflow
2019-05-10 17:52:10 +02:00
rfcomm
Bluetooth: RFCOMM: fix ODEBUG bug in rfcomm_dev_ioctl
2020-04-13 10:32:57 +02:00
6lowpan.c
Bluetooth: add a mutex lock to avoid UAF in do_enale_set
2020-08-21 11:01:57 +02:00
a2mp.c
Bluetooth: drop HCI device reference before return
2021-03-03 17:44:32 +01:00
a2mp.h
Bluetooth: Add BT_HS config option
2015-07-30 13:31:59 +02:00
af_bluetooth.c
Bluetooth: Avoid bt_accept_unlink() double unlinking
2018-03-22 09:17:52 +01:00
amp.c
Bluetooth: Fix null pointer dereference in amp_read_loc_assoc_final_data
2021-03-07 11:25:57 +01:00
amp.h
Bluetooth: Add BT_HS config option
2015-07-30 13:31:59 +02:00
ecc.c
Bluetooth: Add ECC library for LE Secure Connections
2014-12-03 16:51:16 +01:00
ecc.h
Bluetooth: Add ECC library for LE Secure Connections
2014-12-03 16:51:16 +01:00
hci_conn.c
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2020-10-17 11:02:19 +02:00
hci_core.c
Bluetooth: Put HCI device if inquiry procedure interrupts
2021-03-03 17:44:33 +01:00
hci_debugfs.c
Bluetooth: Add debugfs fields for hardware and firmware info
2016-07-18 09:33:28 +03:00
hci_debugfs.h
Bluetooth: Provide option to enable/disable debugfs information
2015-02-15 18:54:13 +02:00
hci_event.c
Bluetooth: Fix null pointer dereference in hci_event_packet()
2020-12-29 13:44:53 +01:00
hci_request.c
Bluetooth: Fix advertising duplicated flags
2020-01-04 13:39:31 +01:00
hci_request.h
Bluetooth: Fix append max 11 bytes of name to scan rsp data
2016-10-19 18:42:37 +02:00
hci_sock.c
Bluetooth: Fix race condition in hci_release_sock()
2020-02-05 13:05:47 +00:00
hci_sysfs.c
Bluetooth: Remove controller device attributes
2016-07-09 21:37:11 +03:00
Kconfig
Bluetooth: add LED trigger for indicating HCI is powered up
2016-02-23 20:29:35 +01:00
l2cap_core.c
Bluetooth: L2CAP: Fix calling sk_filter on non-socket based channel
2020-10-17 11:02:19 +02:00
l2cap_sock.c
Bluetooth: Only mark socket zapped after unlocking
2020-10-29 09:05:44 +01:00
leds.c
Bluetooth: Add combined LED trigger for controller power
2016-09-19 20:19:34 +02:00
leds.h
Bluetooth: Add combined LED trigger for controller power
2016-09-19 20:19:34 +02:00
lib.c
Bluetooth: Add BT_WARN and bt_dev_warn logging macros
2015-09-24 16:25:44 +02:00
Makefile
Bluetooth: add LED trigger for indicating HCI is powered up
2016-02-23 20:29:35 +01:00
mgmt_util.c
Bluetooth: Add support for sending MGMT commands and events to monitor
2016-09-19 20:19:34 +02:00
mgmt_util.h
Bluetooth: Add generic mgmt helper API
2015-03-17 18:03:08 +01:00
mgmt.c
Bluetooth: MGMT: Fix not checking if BT_HS is enabled
2020-10-17 11:02:19 +02:00
sco.c
Bluetooth: avoid killing an already killed socket
2018-08-22 07:47:15 +02:00
selftest.c
Bluetooth: Export ECDH selftest result in debugfs
2015-04-02 08:47:38 +03:00
selftest.h
Bluetooth: Add support for self testing framework
2014-12-30 08:53:55 +02:00
smp.c
Bluetooth: Add SMP workaround Microsoft Surface Precision Mouse bug
2019-08-04 09:33:32 +02:00
smp.h
Bluetooth: SMP: fix crash in unpairing
2018-11-10 07:42:42 -08:00