kernel_samsung_a53x/net/bluetooth
Luiz Augusto von Dentz 727f05fda3 Bluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change
[ Upstream commit 08d1914293dae38350b8088980e59fbc699a72fe ]

rfcomm_sk_state_change attempts to use sock_lock so it must never be
called with it locked but rfcomm_sock_ioctl always attempt to lock it
causing the following trace:

======================================================
WARNING: possible circular locking dependency detected
6.8.0-syzkaller-08951-gfe46a7dd189e  Not tainted
------------------------------------------------------
syz-executor386/5093 is trying to acquire lock:
ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1671 [inline]
ffff88807c396258 (sk_lock-AF_BLUETOOTH-BTPROTO_RFCOMM){+.+.}-{0:0}, at: rfcomm_sk_state_change+0x5b/0x310 net/bluetooth/rfcomm/sock.c:73

but task is already holding lock:
ffff88807badfd28 (&d->lock){+.+.}-{3:3}, at: __rfcomm_dlc_close+0x226/0x6a0 net/bluetooth/rfcomm/core.c:491

Reported-by: syzbot+d7ce59b06b3eb14fd218@syzkaller.appspotmail.com
Tested-by: syzbot+d7ce59b06b3eb14fd218@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=d7ce59b06b3eb14fd218
Fixes: 3241ad820dbb ("[Bluetooth] Add timestamp support to L2CAP, RFCOMM and SCO")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:21:51 +01:00
..
bnep Bluetooth: bnep: Fix out-of-bound access 2024-11-23 23:20:46 +01:00
cmtp exit: Rename module_put_and_exit to module_put_and_kthread_exit 2024-11-19 12:27:50 +01:00
hidp exit: Rename module_put_and_exit to module_put_and_kthread_exit 2024-11-19 12:27:50 +01:00
rfcomm Bluetooth: RFCOMM: FIX possible deadlock in rfcomm_sk_state_change 2024-11-23 23:21:51 +01:00
6lowpan.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
a2mp.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
a2mp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
af_bluetooth.c Bluetooth: af_bluetooth: Fix Use-After-Free in bt_sock_recvmsg 2024-11-18 12:12:02 +01:00
amp.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
amp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ecdh_helper.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ecdh_helper.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hci_conn.c Bluetooth: Fix bogus check for re-auth no supported with non-ssp 2024-11-18 12:12:38 +01:00
hci_core.c Bluetooth: hci_core: Fix LE quote calculation 2024-11-23 23:20:47 +01:00
hci_debugfs.c Bluetooth: Fix TOCTOU in HCI debugfs implementation 2024-11-19 09:22:45 +01:00
hci_debugfs.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hci_event.c Bluetooth: hci_event: set the conn encrypted before conn establishes 2024-11-19 09:22:44 +01:00
hci_request.c Bluetooth: Fix memory leak in hci_req_sync_complete() 2024-11-19 11:32:19 +01:00
hci_request.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hci_sock.c Bluetooth: hci_sock: Correctly bounds check and pad HCI_MON_NEW_INDEX name 2024-11-08 11:26:20 +01:00
hci_sysfs.c Bluetooth: Fix double free in hci_conn_cleanup 2024-11-18 11:43:12 +01:00
Kconfig Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
l2cap_core.c Bluetooth: l2cap: always unlock channel in l2cap_conless_channel() 2024-11-23 23:20:22 +01:00
l2cap_sock.c Bluetooth: L2CAP: Fix not validating setsockopt user input 2024-11-23 23:21:36 +01:00
leds.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
leds.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
lib.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Makefile Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mgmt.c Bluetooth: MGMT: Ignore keys being loaded with invalid type 2024-11-23 23:21:00 +01:00
mgmt_config.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mgmt_config.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mgmt_util.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mgmt_util.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
msft.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
msft.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sco.c Bluetooth: Fix use-after-free bugs caused by sco_sock_timeout 2024-11-19 11:32:45 +01:00
selftest.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
selftest.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
smp.c Revert "Bluetooth: MGMT/SMP: Fix address type when using SMP over BREDR/LE" 2024-11-23 23:21:00 +01:00
smp.h Bluetooth: use inclusive language in SMP 2024-11-18 12:12:01 +01:00