INFO: task kworker/u5:4:3626 blocked for more than 143 seconds.
Not tainted 5.18.0-rc4-next-20220429-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u5:4 state:D stack:27376 pid: 3626 ppid: 2 flags:0x00004000
Workqueue: hci7 hci_power_on
Call Trace:
context_switch kernel/sched/core.c:5106 [inline]
__schedule+0xa9a/0x4cc0 kernel/sched/core.c:6421
schedule+0xd2/0x1f0 kernel/sched/core.c:6493
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6552
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747
hci_dev_do_open+0x2a/0x70 net/bluetooth/hci_core.c:480
hci_power_on+0x133/0x630 net/bluetooth/hci_core.c:963
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
INFO: task syz-executor.1:5867 blocked for more than 143 seconds.
Not tainted 5.18.0-rc4-next-20220429-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28032 pid: 5867 ppid: 3610 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5106 [inline]
__schedule+0xa9a/0x4cc0 kernel/sched/core.c:6421
schedule+0xd2/0x1f0 kernel/sched/core.c:6493
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1883
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common+0x378/0x530 kernel/sched/completion.c:106
__flush_work+0x56c/0xb10 kernel/workqueue.c:3097
__cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3184
hci_dev_close_sync+0x8d/0x1150 net/bluetooth/hci_sync.c:4092
hci_dev_do_close+0x32/0x70 net/bluetooth/hci_core.c:553
hci_unregister_dev+0x1c4/0x550 net/bluetooth/hci_core.c:2685
hci_uart_tty_close+0x241/0x2a0 drivers/bluetooth/hci_ldisc.c:548
tty_ldisc_close+0x110/0x190 drivers/tty/tty_ldisc.c:456
tty_ldisc_kill+0x94/0x150 drivers/tty/tty_ldisc.c:608
tty_ldisc_release+0xe1/0x2a0 drivers/tty/tty_ldisc.c:776
tty_release_struct+0x20/0xe0 drivers/tty/tty_io.c:1694
tty_release+0xc70/0x1200 drivers/tty/tty_io.c:1865
__fput+0x277/0x9d0 fs/file_table.c:317
task_work_run+0xdd/0x1a0 kernel/task_work.c:169
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:169 [inline]
exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:201
__syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:294
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f8558a3bd2b
RSP: 002b:00007ffcce3fb410 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f8558a3bd2b
RDX: 00007f8558ba0260 RSI: ffffffffffffffff RDI: 0000000000000003
RBP: 00007f8558b9d960 R08: 0000000000000000 R09: 00007f8558ba0268
R10: 00007ffcce3fb510 R11: 0000000000000293 R12: 000000000002b43d
R13: 00007ffcce3fb510 R14: 00007f8558b9bf60 R15: 0000000000000032
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8bd84b50 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:502
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8bd847d0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:502
1 lock held by khungtaskd/29:
#0: ffffffff8bd856a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6491
2 locks held by kworker/u4:6/1090:
2 locks held by getty/3282:
#0: ffff88807e450098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002ce62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0 drivers/tty/n_tty.c:2118
3 locks held by kworker/u5:4/3626:
#0: ffff88807d754938 ((wq_completion)hci7){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88807d754938 ((wq_completion)hci7){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff88807d754938 ((wq_completion)hci7){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff88807d754938 ((wq_completion)hci7){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff88807d754938 ((wq_completion)hci7){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff88807d754938 ((wq_completion)hci7){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc90003c7fda8 ((work_completion)(&hdev->power_on)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffff888021031048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_open+0x2a/0x70 net/bluetooth/hci_core.c:480
3 locks held by syz-executor.1/5867:
#0: ffff888054af0098 (&tty->ldisc_sem){++++}-{0:0}, at: __tty_ldisc_lock drivers/tty/tty_ldisc.c:290 [inline]
#0: ffff888054af0098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_lock_pair_timeout drivers/tty/tty_ldisc.c:346 [inline]
#0: ffff888054af0098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_lock_pair drivers/tty/tty_ldisc.c:367 [inline]
#0: ffff888054af0098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_release+0x127/0x2a0 drivers/tty/tty_ldisc.c:775
#1: ffff88807e233098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: __tty_ldisc_lock_nested drivers/tty/tty_ldisc.c:296 [inline]
#1: ffff88807e233098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: tty_ldisc_lock_pair_timeout drivers/tty/tty_ldisc.c:348 [inline]
#1: ffff88807e233098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: tty_ldisc_lock_pair drivers/tty/tty_ldisc.c:367 [inline]
#1: ffff88807e233098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: tty_ldisc_release+0x1bd/0x2a0 drivers/tty/tty_ldisc.c:775
#2: ffff888021031048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x2a/0x70 net/bluetooth/hci_core.c:551
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 5.18.0-rc4-next-20220429-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xc22/0xf90 kernel/hung_task.c:378
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5838 Comm: kworker/u4:16 Not tainted 5.18.0-rc4-next-20220429-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy7 ieee80211_iface_work
RIP: 0010:sta_info_get+0x0/0x390 net/mac80211/sta_info.c:168
Code: 76 ff ff 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 81 c4 a8 00 00 00 5b 5d 41 5c c3 66 66 2e 0f 1f 84 00 00 00 00 00 90 <41> 56 41 55 49 89 fd 41 54 49 89 f4 55 53 48 bb 00 00 00 00 00 fc
RSP: 0018:ffffc900059afad0 EFLAGS: 00000293
RAX: ffff88805b465c5a RBX: ffff888056b83000 RCX: 0000000000000000
RDX: ffff88807ae99d80 RSI: ffff88805b465c5a RDI: ffff88805aac8d00
RBP: ffffc900059afca0 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff88bccef1 R11: 0000000000000000 R12: ffff88805b465c50
R13: ffff88805aac8d00 R14: 000000000000004c R15: 000000000000004c
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f251e31b388 CR3: 000000000ba8e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline]
ieee80211_rx_bss_info net/mac80211/ibss.c:1117 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1610 [inline]
ieee80211_ibss_rx_queued_mgmt+0x116d/0x33f0 net/mac80211/ibss.c:1639
ieee80211_iface_process_skb net/mac80211/iface.c:1527 [inline]
ieee80211_iface_work+0xa78/0xd10 net/mac80211/iface.c:1581
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
----------------
Code disassembly (best guess), 3 bytes skipped:
0: 48 c7 03 00 00 00 00 movq $0x0,(%rbx)
7: 48 c7 43 08 00 00 00 movq $0x0,0x8(%rbx)
e: 00
f: 48 81 c4 a8 00 00 00 add $0xa8,%rsp
16: 5b pop %rbx
17: 5d pop %rbp
18: 41 5c pop %r12
1a: c3 retq
1b: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1)
22: 00 00 00 00
26: 90 nop
* 27: 41 56 push %r14 <-- trapping instruction
29: 41 55 push %r13
2b: 49 89 fd mov %rdi,%r13
2e: 41 54 push %r12
30: 49 89 f4 mov %rsi,%r12
33: 55 push %rbp
34: 53 push %rbx
35: 48 rex.W
36: bb 00 00 00 00 mov $0x0,%ebx
3b: 00 fc add %bh,%ah