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Gopal Tiwari 7d16e7c161 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 12:20:45 +01:00
..
bnep
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234
2019-06-19 17:09:07 +02:00
cmtp
treewide: Add SPDX license identifier - Makefile/Kconfig
2019-05-21 10:50:46 +02:00
hidp
Bluetooth: hidp: Fix assumptions on the return value of hidp_send_message
2019-09-06 15:55:40 +02:00
rfcomm
Bluetooth: RFCOMM: fix ODEBUG bug in rfcomm_dev_ioctl
2020-04-13 10:48:13 +02:00
6lowpan.c
Bluetooth: add a mutex lock to avoid UAF in do_enale_set
2020-08-19 08:15:59 +02:00
a2mp.c
Bluetooth: drop HCI device reference before return
2021-03-04 10:26:14 +01:00
a2mp.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284
2019-06-05 17:36:37 +02:00
af_bluetooth.c
net: use skb_queue_empty_lockless() in poll() handlers
2019-10-28 13:33:41 -07:00
amp.c
Bluetooth: Fix null pointer dereference in amp_read_loc_assoc_final_data
2021-03-07 12:20:45 +01:00
amp.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284
2019-06-05 17:36:37 +02:00
ecdh_helper.c
Bluetooth: let the crypto subsystem generate the ecc privkey
2017-10-06 20:35:47 +02:00
ecdh_helper.h
Bluetooth: let the crypto subsystem generate the ecc privkey
2017-10-06 20:35:47 +02:00
hci_conn.c
Bluetooth: Disconnect if E0 is used for Level 4
2020-10-17 10:11:22 +02:00
hci_core.c
Bluetooth: Put HCI device if inquiry procedure interrupts
2021-03-04 10:26:14 +01:00
hci_debugfs.c
Bluetooth: Add debug setting for changing minimum encryption key size
2019-08-17 13:54:40 +03:00
hci_debugfs.h
…
hci_event.c
Bluetooth: Fix null pointer dereference in hci_event_packet()
2020-12-30 11:51:05 +01:00
hci_request.c
Bluetooth: Fix advertising duplicated flags
2019-12-31 16:44:33 +01:00
hci_request.h
Bluetooth: Use controller sets when available
2019-07-06 15:38:18 +02:00
hci_sock.c
Bluetooth: Fix race condition in hci_release_sock()
2020-02-05 21:22:42 +00:00
hci_sysfs.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-11-04 09:26:51 +09:00
Kconfig
bluetooth: switch to AES library
2019-07-26 14:58:12 +10:00
l2cap_core.c
Bluetooth: L2CAP: Fix calling sk_filter on non-socket based channel
2020-10-17 10:11:22 +02:00
l2cap_sock.c
Bluetooth: Only mark socket zapped after unlocking
2020-10-29 09:58:06 +01:00
leds.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
leds.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
lib.c
Bluetooth: make baswap src const
2017-09-01 22:49:47 +02:00
Makefile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mgmt_util.c
networking: make skb_push & __skb_push return void pointers
2017-06-16 11:48:40 -04:00
mgmt_util.h
…
mgmt.c
Bluetooth: MGMT: Fix not checking if BT_HS is enabled
2020-10-17 10:11:22 +02:00
sco.c
net: rework SIOCGSTAMP ioctl handling
2019-04-19 14:07:40 -07:00
selftest.c
Bluetooth: Fix compiler warning with selftest duration calculation
2017-10-06 21:49:13 +03:00
selftest.h
…
smp.c
bluetooth: switch to AES library
2019-07-26 14:58:12 +10:00
smp.h
Bluetooth: SMP: fix crash in unpairing
2018-09-26 12:39:32 +03:00