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linux-stable/drivers/bluetooth
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Tetsuo Handa 3124d320c2 Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure 
syzbot is reporting NULL pointer dereference at hci_uart_tty_close() [1],
for rcu_sync_enter() is called without rcu_sync_init() due to
hci_uart_tty_open() ignoring percpu_init_rwsem() failure.

While we are at it, fix that hci_uart_register_device() ignores
percpu_init_rwsem() failure and hci_uart_unregister_device() does not
call percpu_free_rwsem().

Link: https://syzkaller.appspot.com/bug?extid=576dfca25381fb6fbc5f [1]
Reported-by: syzbot <syzbot+576dfca25381fb6fbc5f@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Fixes: 67d2f8781b ("Bluetooth: hci_ldisc: Allow sleeping while proto locks are held.")
Fixes: d73e172816 ("Bluetooth: hci_serdev: Init hci_uart proto_lock to avoid oops")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
 		2022-09-19 10:33:39 -07:00
..
Kconfig Bluetooth: btmtkuart: rely on BT_MTK module 2022-03-18 17:12:07 +01:00
Makefile Bluetooth: mediatek: add BT_MTK module 2021-10-25 15:36:23 +02:00
ath3k.c Bluetooth: ath3k: remove superfluous header files 2022-03-18 17:12:09 +01:00
bcm203x.c Bluetooth: bcm203x: remove superfluous header files 2022-03-18 17:12:09 +01:00
bfusb.c Bluetooth: bfusb: fix division by zero in send path 2021-10-25 15:04:46 +02:00
bluecard_cs.c Bluetooth: Use fallthrough pseudo-keyword 2020-07-10 19:09:42 +02:00
bpa10x.c Bluetooth: bpa10x: change return value 2019-09-04 16:11:46 +02:00
bt3c_cs.c Bluetooth: bt3c_cs: Fix obsolete function 2018-09-27 12:57:39 +02:00
btbcm.c Bluetooth: hci_bcm: Add BCM4349B1 variant 2022-07-21 17:06:36 -07:00
btbcm.h Bluetooth: hci_bcm: Add support for FW loading in autobaud mode 2022-07-21 17:04:38 -07:00
btintel.c Bluetooth: btintel: Mark Intel controller to support LE_STATES quirk 2022-09-09 12:20:25 -07:00
btintel.h Bluetooth: btintel: Fix WBS setting for Intel legacy ROM products 2022-01-21 21:37:48 +01:00
btmrvl_debugfs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_390.RULE 2022-06-10 14:51:36 +02:00
btmrvl_drv.h treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_390.RULE 2022-06-10 14:51:36 +02:00
btmrvl_main.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_390.RULE 2022-06-10 14:51:36 +02:00
btmrvl_sdio.c treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_390.RULE 2022-06-10 14:51:36 +02:00
btmrvl_sdio.h treewide: Replace GPLv2 boilerplate/reference with SPDX - gpl-2.0_390.RULE 2022-06-10 14:51:36 +02:00
btmtk.c Bluetooth: btmtkuart: rely on BT_MTK module 2022-03-18 17:12:07 +01:00
btmtk.h Bluetooth: btmtkuart: rely on BT_MTK module 2022-03-18 17:12:07 +01:00
btmtksdio.c Bluetooth: btmtksdio: Add in-band wakeup support 2022-07-21 17:08:03 -07:00
btmtkuart.c Bluetooth: btmtkuart: fix error handling in mtk_hci_wmt_sync() 2022-03-18 17:12:08 +01:00
btqca.c Bluetooth: btqca: sequential validation 2022-01-07 08:32:55 +01:00
btqca.h Bluetooth: btqca: sequential validation 2022-01-07 08:32:55 +01:00
btqcomsmd.c Bluetooth: btqcomsmd: Fix a resource leak in error handling paths in the probe function 2020-12-18 22:20:21 +01:00
btrsi.c Bluetooth: btrsi: remove superfluous header files from btrsi.c 2021-09-29 00:13:48 +02:00
btrtl.c Bluetooth: btrtl: Fix typo in comment 2022-07-22 12:55:06 -07:00
btrtl.h Bluetooth: hci_h5: Add RTL8822CS capabilities 2021-06-26 07:12:34 +02:00
btsdio.c Bluetooth: btsdio: Do not bind to non-removable BCM4345 and BCM43455 2021-10-20 15:04:13 +02:00
btusb.c Bluetooth: btusb: Add a new VID/PID 0e8d/0608 for MT7921 2022-09-14 13:07:56 -07:00
dtl1_cs.c
…
h4_recv.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 2019-05-30 11:26:35 -07:00
hci_ag6xx.c Bluetooth: hci_uart: Remove redundant assignment to fw_ptr 2021-06-26 07:52:41 +02:00
hci_ath.c Bluetooth: hci_uart: check for missing tty operations 2019-07-31 13:17:33 -07:00
hci_bcm.c Bluetooth: hci_bcm: Increase host baudrate for CYW55572 in autobaud mode 2022-07-21 17:12:22 -07:00
hci_bcsp.c Bluetooth: Fix invalid-free in bcsp_close() 2019-11-04 15:19:02 +01:00
hci_h4.c Bluetooth: hci_h4: Fix padding calculation error within h4_recv_buf() 2021-11-16 13:57:25 +01:00
hci_h5.c Bluetooth: hci_uart: add missing NULL check in h5_enqueue 2022-03-18 17:12:07 +01:00
hci_intel.c Bluetooth: hci_intel: Add check for platform_driver_register 2022-07-21 17:05:10 -07:00
hci_ldisc.c Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure 2022-09-19 10:33:39 -07:00
hci_ll.c Bluetooth: Remove kernel-doc style comment block 2022-01-21 21:41:51 +01:00
hci_mrvl.c Bluetooth: hci_uart: check for missing tty operations 2019-07-31 13:17:33 -07:00
hci_nokia.c Bluetooth: hci_nokia: Save a few cycles in 'nokia_enqueue()' 2019-10-16 19:26:40 +02:00
hci_qca.c Bluetooth: hci_qca: Return wakeup for qca_wakeup 2022-07-21 17:04:14 -07:00
hci_serdev.c Bluetooth: hci_{ldisc,serdev}: check percpu_init_rwsem() failure 2022-09-19 10:33:39 -07:00
hci_uart.h Bluetooth: hci_h5: Disable the hci_suspend_notifier for btrtl devices 2021-07-22 16:06:09 +02:00
hci_vhci.c Bluetooth: vhci: Set HCI_QUIRK_VALID_LE_STATES 2021-12-22 23:01:35 +01:00
virtio_bt.c virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes 2022-01-18 10:05:48 +02:00