INFO: task kworker/u5:0:25089 blocked for more than 143 seconds.
Not tainted 5.19.0-rc3-syzkaller-00271-g6a0a17e6c6d1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u5:0 state:D stack:24960 pid:25089 ppid: 2 flags:0x00004000
Workqueue: hci6 hci_power_on
Call Trace:
context_switch kernel/sched/core.c:5146 [inline]
__schedule+0x957/0xe20 kernel/sched/core.c:6458
schedule+0xeb/0x1b0 kernel/sched/core.c:6530
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6589
__mutex_lock_common+0xecf/0x26c0 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799
hci_dev_do_open net/bluetooth/hci_core.c:480 [inline]
hci_power_on+0x178/0x650 net/bluetooth/hci_core.c:963
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
INFO: task syz-executor.3:437 blocked for more than 143 seconds.
Not tainted 5.19.0-rc3-syzkaller-00271-g6a0a17e6c6d1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:27040 pid: 437 ppid: 3645 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5146 [inline]
__schedule+0x957/0xe20 kernel/sched/core.c:6458
schedule+0xeb/0x1b0 kernel/sched/core.c:6530
schedule_timeout+0xac/0x300 kernel/time/timer.c:1911
do_wait_for_common+0x3ea/0x560 kernel/sched/completion.c:85
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x46/0x60 kernel/sched/completion.c:138
__flush_work kernel/workqueue.c:3075 [inline]
__cancel_work_timer+0x585/0x740 kernel/workqueue.c:3162
hci_dev_close_sync+0x31/0xcc0 net/bluetooth/hci_sync.c:4091
hci_dev_do_close net/bluetooth/hci_core.c:553 [inline]
hci_unregister_dev+0x1b1/0x460 net/bluetooth/hci_core.c:2685
hci_uart_tty_close+0x1a7/0x280 drivers/bluetooth/hci_ldisc.c:548
tty_ldisc_kill drivers/tty/tty_ldisc.c:608 [inline]
tty_ldisc_release+0x23c/0x510 drivers/tty/tty_ldisc.c:776
tty_release_struct+0x27/0xd0 drivers/tty/tty_io.c:1694
tty_release+0xc06/0xe60 drivers/tty/tty_io.c:1865
__fput+0x3b9/0x820 fs/file_table.c:317
task_work_run+0x146/0x1c0 kernel/task_work.c:177
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0x134/0x160 kernel/entry/common.c:169
exit_to_user_mode_prepare+0xad/0x110 kernel/entry/common.c:201
__syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
syscall_exit_to_user_mode+0x2e/0x60 kernel/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f897483bd4b
RSP: 002b:00007ffee92fb920 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f897483bd4b
RDX: 00007f89749a01c0 RSI: ffffffffffffffff RDI: 0000000000000003
RBP: 00007f897499d960 R08: 0000000000000000 R09: 00007f89749a01c8
R10: 00007ffee92fba20 R11: 0000000000000293 R12: 00000000001fc07e
R13: 00007ffee92fba20 R14: 00007f897499bf60 R15: 0000000000000032
Showing all locks held in the system:
1 lock held by khungtaskd/28:
#0: ffffffff8cb1e820 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by hwrng/754:
#0: ffffffff8d24cd48 (reading_mutex){+.+.}-{3:3}, at: hwrng_fillfn+0xec/0x470 drivers/char/hw_random/core.c:503
2 locks held by getty/3284:
#0: ffff88814aaf8098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc90002d232e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6e8/0x1e50 drivers/tty/n_tty.c:2124
2 locks held by kworker/u4:11/23095:
3 locks held by kworker/u5:0/25089:
#0: ffff888078e59938 ((wq_completion)hci6){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc9000ab27d00 ((work_completion)(&hdev->power_on)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffff888033821048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_open net/bluetooth/hci_core.c:480 [inline]
#2: ffff888033821048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_power_on+0x178/0x650 net/bluetooth/hci_core.c:963
3 locks held by syz-executor.3/437:
#0: ffff888035773098 (&tty->ldisc_sem){++++}-{0:0}, at: __tty_ldisc_lock drivers/tty/tty_ldisc.c:290 [inline]
#0: ffff888035773098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_lock_pair_timeout drivers/tty/tty_ldisc.c:336 [inline]
#0: ffff888035773098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_lock_pair drivers/tty/tty_ldisc.c:367 [inline]
#0: ffff888035773098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_release+0x5b/0x510 drivers/tty/tty_ldisc.c:775
#1: ffff888039feb098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: __tty_ldisc_lock_nested drivers/tty/tty_ldisc.c:296 [inline]
#1: ffff888039feb098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: tty_ldisc_lock_pair_timeout drivers/tty/tty_ldisc.c:338 [inline]
#1: ffff888039feb098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: tty_ldisc_lock_pair drivers/tty/tty_ldisc.c:367 [inline]
#1: ffff888039feb098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: tty_ldisc_release+0x7f/0x510 drivers/tty/tty_ldisc.c:775
#2: ffff888033821048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:551 [inline]
#2: ffff888033821048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x1a9/0x460 net/bluetooth/hci_core.c:2685
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 5.19.0-rc3-syzkaller-00271-g6a0a17e6c6d1 #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+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x473/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x168/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xcf9/0xd40 kernel/hung_task.c:369
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4307 Comm: kworker/u4:8 Not tainted 5.19.0-rc3-syzkaller-00271-g6a0a17e6c6d1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy5 ieee80211_iface_work
RIP: 0010:arch_atomic_long_read include/linux/atomic/atomic-long.h:29 [inline]
RIP: 0010:atomic_long_read include/linux/atomic/atomic-instrumented.h:1266 [inline]
RIP: 0010:__mutex_trylock_common+0xa8/0x2f0 kernel/locking/mutex.c:107
Code: 00 48 89 44 24 18 be 08 00 00 00 e8 d2 6a 73 00 4c 89 e0 48 c1 e8 03 42 80 3c 30 00 74 08 4c 89 e7 e8 1c 69 73 00 49 8b 1c 24 <4d> 89 fd 49 c1 ed 03 48 c7 c0 e0 ee 53 91 48 c1 e8 03 48 89 44 24
RSP: 0018:ffffc9000c5cf740 EFLAGS: 00000246
RAX: 1ffff1100fb4b99b RBX: 0000000000000000 RCX: ffffffff8167000e
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88807da5ccd8
RBP: ffffc9000c5cf810 R08: dffffc0000000000 R09: ffffed100fb4b99c
R10: ffffed100fb4b99c R11: 1ffff1100fb4b99b R12: ffff88807da5ccd8
R13: ffff88807da5ccd8 R14: dffffc0000000000 R15: ffffc9000c5cf7a0
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000561ac4c1ad58 CR3: 0000000027a35000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__mutex_trylock kernel/locking/mutex.c:152 [inline]
__mutex_lock_common+0x1f9/0x26c0 kernel/locking/mutex.c:606
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799
sdata_lock net/mac80211/ieee80211_i.h:1040 [inline]
ieee80211_ibss_rx_queued_mgmt+0xfe/0x28c0 net/mac80211/ibss.c:1628
ieee80211_iface_process_skb net/mac80211/iface.c:1527 [inline]
ieee80211_iface_work+0x757/0xcd0 net/mac80211/iface.c:1581
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
----------------
Code disassembly (best guess):
0: 00 48 89 add %cl,-0x77(%rax)
3: 44 24 18 rex.R and $0x18,%al
6: be 08 00 00 00 mov $0x8,%esi
b: e8 d2 6a 73 00 callq 0x736ae2
10: 4c 89 e0 mov %r12,%rax
13: 48 c1 e8 03 shr $0x3,%rax
17: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1)
1c: 74 08 je 0x26
1e: 4c 89 e7 mov %r12,%rdi
21: e8 1c 69 73 00 callq 0x736942
26: 49 8b 1c 24 mov (%r12),%rbx
* 2a: 4d 89 fd mov %r15,%r13 <-- trapping instruction
2d: 49 c1 ed 03 shr $0x3,%r13
31: 48 c7 c0 e0 ee 53 91 mov $0xffffffff9153eee0,%rax
38: 48 c1 e8 03 shr $0x3,%rax
3c: 48 rex.W
3d: 89 .byte 0x89
3e: 44 rex.R
3f: 24 .byte 0x24