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Luiz Augusto von Dentz d1e894f950 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 12:35:37 +02:00
..
bnep
Bluetooth: bnep: Use the correct print format
2021-06-26 07:12:40 +02:00
cmtp
Bluetooth: cmtp: fix possible panic when cmtp_init_sockets() fails
2022-01-27 11:03:03 +01:00
hidp
Bluetooth: hidp: Use the correct print format
2021-06-26 07:12:40 +02:00
rfcomm
Bluetooth: RFCOMM: Fix possible deadlock on socket shutdown/release
2022-10-26 12:34:44 +02:00
6lowpan.c
Bluetooth: 6lowpan: Use the correct print format
2021-06-26 07:12:41 +02:00
a2mp.c
Bluetooth: a2mp: Use the correct print format
2021-06-26 07:12:41 +02:00
a2mp.h
Bluetooth: Replace zero-length array with flexible-array member
2020-02-28 08:30:02 +01:00
af_bluetooth.c
Bluetooth: fix indentation and alignment reported by checkpatch
2021-01-29 16:51:45 +01:00
amp.c
Bluetooth: amp: Use the correct print format
2021-06-26 07:12:41 +02:00
amp.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284
2019-06-05 17:36:37 +02:00
aosp.c
Bluetooth: Add support for reading AOSP vendor capabilities
2021-04-06 14:11:23 -07:00
aosp.h
Bluetooth: Add support for reading AOSP vendor capabilities
2021-04-06 14:11:23 -07:00
ecdh_helper.c
crypto: ecdh - move curve_id of ECDH from the key to algorithm name
2021-03-13 00:04:03 +11:00
ecdh_helper.h
Fix misc new gcc warnings
2021-04-27 17:05:53 -07:00
hci_conn.c
Bluetooth: call hci_le_conn_failed with hdev lock in hci_le_conn_failed
2022-04-08 14:23:41 +02:00
hci_core.c
Bluetooth: hci_core: Fix not handling link timeouts propertly
2022-10-26 12:34:46 +02:00
hci_debugfs.c
Bluetooth: use inclusive language when filtering devices
2021-06-26 07:12:44 +02:00
hci_debugfs.h
…
hci_event.c
Bluetooth: protect le accept and resolv lists with hdev->lock
2022-07-12 16:35:07 +02:00
hci_request.c
Bluetooth: use hdev lock in activate_scan for hci_is_adv_monitoring
2022-06-09 10:22:58 +02:00
hci_request.h
Bluetooth: Resume advertising after LE connection
2020-11-09 13:33:19 +01:00
hci_sock.c
Bluetooth: defer cleanup of resources in hci_unregister_dev()
2021-08-05 12:15:24 -07:00
hci_sysfs.c
Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times
2022-10-26 12:35:36 +02:00
Kconfig
Bluetooth: Add support for reading AOSP vendor capabilities
2021-04-06 14:11:23 -07:00
l2cap_core.c
Bluetooth: L2CAP: Fix user-after-free
2022-10-26 12:35:37 +02:00
l2cap_sock.c
Bluetooth: L2CAP: uninitialized variables in l2cap_sock_setsockopt()
2022-01-27 11:03:58 +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: Add support for reading AOSP vendor capabilities
2021-04-06 14:11:23 -07:00
mgmt_config.c
Bluetooth: mgmt: Use the correct print format
2021-06-26 07:12:42 +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: MGMT: Use hci_dev_test_and_{set,clear}_flag
2022-01-27 11:03:31 +01:00
msft.c
Bluetooth: msft: Use the correct print format
2021-06-26 07:12:42 +02:00
msft.h
Bluetooth: Allow Microsoft extension to indicate curve validation
2021-04-08 12:26:34 +02:00
sco.c
Bluetooth: SCO: Fix sco_send_frame returning skb->len
2022-07-29 17:25:30 +02:00
selftest.c
crypto: ecdh - move curve_id of ECDH from the key to algorithm name
2021-03-13 00:04:03 +11:00
selftest.h
…
smp.c
Bluetooth: use inclusive language in HCI role comments
2021-06-26 07:12:43 +02:00
smp.h
Bluetooth: use inclusive language in SMP
2021-06-26 07:12:37 +02:00