AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/net/bluetooth
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Gopal Tiwari 15c56b8f2c 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 12:34:10 +01:00
..
bnep net: make ->{get,set}sockopt in proto_ops optional 2020-07-19 18:16:41 -07:00
cmtp net: make ->{get,set}sockopt in proto_ops optional 2020-07-19 18:16:41 -07:00
hidp net: make ->{get,set}sockopt in proto_ops optional 2020-07-19 18:16:41 -07:00
rfcomm Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next 2020-07-31 15:11:52 -07:00
6lowpan.c Bluetooth: add a mutex lock to avoid UAF in do_enale_set 2020-06-23 14:30:07 +02:00
a2mp.c Bluetooth: drop HCI device reference before return 2021-03-04 11:37:25 +01:00
a2mp.h Bluetooth: Replace zero-length array with flexible-array member 2020-02-28 08:30:02 +01:00
af_bluetooth.c Bluetooth: Add support for BT_PKT_STATUS CMSG data for SCO connections 2020-06-12 15:08:49 +02:00
amp.c Bluetooth: Fix null pointer dereference in amp_read_loc_assoc_final_data 2021-03-07 12:34:10 +01:00
amp.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
ecdh_helper.c mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
ecdh_helper.h Bluetooth: let the crypto subsystem generate the ecc privkey 2017-10-06 20:35:47 +02:00
hci_conn.c net: bluetooth: delete duplicated words 2020-09-18 14:12:43 -07:00
hci_core.c Bluetooth: Add new HCI_QUIRK_NO_SUSPEND_NOTIFIER quirk 2021-03-07 12:34:10 +01:00
hci_debugfs.c Bluetooth: debugfs option to unset MITM flag 2020-04-07 18:32:21 +02:00
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() 2020-12-30 11:53:05 +01:00
hci_request.c Bluetooth: Fix: LL PRivacy BLE device fails to connect 2020-12-30 11:53:05 +01:00
hci_request.h Bluetooth: Enable/Disable address resolution during le create conn 2020-07-30 09:34:43 +02:00
hci_sock.c Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next 2020-07-31 15:11:52 -07:00
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: Disable High Speed by default 2020-09-25 20:21:55 +02:00
l2cap_core.c Bluetooth: L2CAP: Fix calling sk_filter on non-socket based channel 2020-09-25 20:21:55 +02:00
l2cap_sock.c Bluetooth: L2CAP: Fix calling sk_filter on non-socket based channel 2020-09-25 20:21:55 +02:00
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: Introduce debug feature when dynamic debug is disabled 2020-05-11 12:16:27 +02:00
Makefile Bluetooth: implement read/set default system parameters mgmt 2020-06-12 21:41:07 +02:00
mgmt_config.c Bluetooth: Adding a configurable autoconnect timeout 2020-07-07 17:37:03 +02:00
mgmt_config.h Bluetooth: mgmt: Add commands for runtime configuration 2020-06-18 13:11:03 +03:00
mgmt_util.c networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
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 2020-09-25 20:21:55 +02:00
msft.c Bluetooth: Replace zero-length array with flexible-array member 2020-10-29 17:22:59 -05:00
msft.h Bluetooth: Add handler of MGMT_OP_READ_ADV_MONITOR_FEATURES 2020-06-18 13:11:21 +03:00
sco.c Bluetooth: sco: Fix crash when using BT_SNDMTU/BT_RCVMTU option 2020-12-30 11:53:40 +01:00
selftest.c Bluetooth: Remove CRYPTO_ALG_INTERNAL flag 2020-07-31 16:42:04 +03:00
selftest.h Bluetooth: Add support for self testing framework 2014-12-30 08:53:55 +02:00
smp.c mm, treewide: rename kzfree() to kfree_sensitive() 2020-08-07 11:33:22 -07:00
smp.h Bluetooth: SMP: fix crash in unpairing 2018-09-26 12:39:32 +03:00