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Luiz Augusto von Dentz 0c108cf3ad Bluetooth: L2CAP: Fix user-after-free 
[ Upstream commit 35fcbc4243aad7e7d020b7c1dfb14bb888b20a4f ]

This uses l2cap_chan_hold_unless_zero() after calling
__l2cap_get_chan_blah() to prevent the following trace:

Bluetooth: l2cap_core.c:static void l2cap_chan_destroy(struct kref
*kref)
Bluetooth: chan 0000000023c4974d
Bluetooth: parent 00000000ae861c08
==================================================================
BUG: KASAN: use-after-free in __mutex_waiter_is_first
kernel/locking/mutex.c:191 [inline]
BUG: KASAN: use-after-free in __mutex_lock_common
kernel/locking/mutex.c:671 [inline]
BUG: KASAN: use-after-free in __mutex_lock+0x278/0x400
kernel/locking/mutex.c:729
Read of size 8 at addr ffff888006a49b08 by task kworker/u3:2/389

Link: https://lore.kernel.org/lkml/20220622082716.478486-1-lee.jones@linaro.org
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sungwoo Kim <iam@sung-woo.kim>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-10-26 13:25:47 +02:00
..
bnep
net: make ->{get,set}sockopt in proto_ops optional
2020-07-19 18:16:41 -07:00
cmtp
Bluetooth: cmtp: fix possible panic when cmtp_init_sockets() fails
2022-01-27 10:53:45 +01:00
hidp
Bluetooth: hidp: use correct wait queue when removing ctrl_wait
2021-08-26 08:35:40 -04:00
rfcomm
Bluetooth: Fix passing NULL to PTR_ERR
2022-07-29 17:19:26 +02:00
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
Fix misc new gcc warnings
2021-05-11 14:47:36 +02:00
hci_conn.c
Bluetooth: use inclusive language in HCI role comments
2022-06-09 10:21:09 +02:00
hci_core.c
Bluetooth: hci_core: Fix not handling link timeouts propertly
2022-10-26 13:25:22 +02:00
hci_debugfs.c
Bluetooth: use inclusive language when filtering devices
2022-06-09 10:21:09 +02:00
hci_debugfs.h
…
hci_event.c
Bluetooth: use hdev lock for accept_list and reject_list in conn req
2022-06-09 10:21:09 +02:00
hci_request.c
Bluetooth: use inclusive language when filtering devices
2022-06-09 10:21:09 +02:00
hci_request.h
Bluetooth: Enable/Disable address resolution during le create conn
2020-07-30 09:34:43 +02:00
hci_sock.c
Bluetooth: use inclusive language when filtering devices
2022-06-09 10:21:09 +02:00
hci_sysfs.c
Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times
2022-10-26 13:25:46 +02:00
Kconfig
Bluetooth: Disable High Speed by default
2020-09-25 20:21:55 +02:00
l2cap_core.c
Bluetooth: L2CAP: Fix user-after-free
2022-10-26 13:25:47 +02:00
l2cap_sock.c
Bluetooth: L2CAP: uninitialized variables in l2cap_sock_setsockopt()
2022-01-27 10:54:02 +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: 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: Interleave with allowlist scan
2022-06-09 10:21:08 +02:00
mgmt_config.h
Bluetooth: mgmt: Add commands for runtime configuration
2020-06-18 13:11:03 +03:00
mgmt_util.c
…
mgmt_util.h
…
mgmt.c
Bluetooth: use inclusive language when filtering devices
2022-06-09 10:21:09 +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 sco_send_frame returning skb->len
2022-07-29 17:19:26 +02:00
selftest.c
Bluetooth: Remove CRYPTO_ALG_INTERNAL flag
2020-07-31 16:42:04 +03:00
selftest.h
…
smp.c
Bluetooth: use inclusive language in HCI role comments
2022-06-09 10:21:09 +02:00
smp.h
Bluetooth: SMP: fix crash in unpairing
2018-09-26 12:39:32 +03:00