INFO: task kworker/u5:8:3665 blocked for more than 143 seconds.
Not tainted 5.19.0-rc2-syzkaller-00050-g018ab4fabddd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u5:8 state:D stack:26592 pid: 3665 ppid: 2 flags:0x00004000
Workqueue: hci6 hci_power_on
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0x957/0xec0 kernel/sched/core.c:6428
schedule+0xeb/0x1b0 kernel/sched/core.c:6500
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6559
__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.3:27031 blocked for more than 143 seconds.
Not tainted 5.19.0-rc2-syzkaller-00050-g018ab4fabddd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:27040 pid:27031 ppid: 3644 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0x957/0xec0 kernel/sched/core.c:6428
schedule+0xeb/0x1b0 kernel/sched/core.c:6500
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: 0033:0x7fb99b63bd4b
RSP: 002b:00007fff94b2a1f0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007fb99b63bd4b
RDX: 00007fb99b7a01c0 RSI: ffffffffffffffff RDI: 0000000000000003
RBP: 00007fb99b79d960 R08: 0000000000000000 R09: 00007fb99b7a01c8
R10: 00007fff94b2a2f0 R11: 0000000000000293 R12: 00000000000fcab6
R13: 00007fff94b2a2f0 R14: 00007fb99b79bf60 R15: 0000000000000032
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8cb1eca0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3290:
#0: ffff8880274ed098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc90002d162e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6e8/0x1e50 drivers/tty/n_tty.c:2124
3 locks held by kworker/u5:8/3665:
#0: ffff88807a91b938 ((wq_completion)hci6){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc9000330fd00 ((work_completion)(&hdev->power_on)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffff888034b69048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_open net/bluetooth/hci_core.c:480 [inline]
#2: ffff888034b69048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_power_on+0x178/0x650 net/bluetooth/hci_core.c:963
3 locks held by syz-executor.3/27031:
#0: ffff8880310e1098 (&tty->ldisc_sem){++++}-{0:0}, at: __tty_ldisc_lock drivers/tty/tty_ldisc.c:290 [inline]
#0: ffff8880310e1098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_lock_pair_timeout drivers/tty/tty_ldisc.c:346 [inline]
#0: ffff8880310e1098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_lock_pair drivers/tty/tty_ldisc.c:367 [inline]
#0: ffff8880310e1098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_release+0xb3/0x510 drivers/tty/tty_ldisc.c:775
#1: ffff88807ce8f098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: __tty_ldisc_lock_nested drivers/tty/tty_ldisc.c:296 [inline]
#1: ffff88807ce8f098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: tty_ldisc_lock_pair_timeout drivers/tty/tty_ldisc.c:348 [inline]
#1: ffff88807ce8f098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: tty_ldisc_lock_pair drivers/tty/tty_ldisc.c:367 [inline]
#1: ffff88807ce8f098 (&tty->ldisc_sem/1){+.+.}-{0:0}, at: tty_ldisc_release+0xd7/0x510 drivers/tty/tty_ldisc.c:775
#2: ffff888034b69048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:551 [inline]
#2: ffff888034b69048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_unregister_dev+0x1a9/0x460 net/bluetooth/hci_core.c:2685
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 5.19.0-rc2-syzkaller-00050-g018ab4fabddd #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:220 [inline]
watchdog+0xd18/0xd60 kernel/hung_task.c:378
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 17571 Comm: kworker/u4:14 Not tainted 5.19.0-rc2-syzkaller-00050-g018ab4fabddd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy5 ieee80211_iface_work
RIP: 0010:__this_cpu_preempt_check+0x0/0x10 lib/smp_processor_id.c:65
Code: 74 24 30 48 c7 c7 e0 8c e9 8a 31 c0 e8 b3 f6 fd ff e8 68 67 ff ff eb a5 e8 6d ed ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 <48> 89 fe 48 c7 c7 60 8c e9 8a e9 d1 fe ff ff cc eb 1e 0f 1f 00 48
RSP: 0018:ffffc900154a7590 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 1ffff92002a94ebc RCX: 0000000080000001
RDX: 0000000000000220 RSI: 00000000ffffffff RDI: ffffffff8a8d2fa0
RBP: 00000000ffffffff R08: 0000000000000b20 R09: ffff88802f1d9000
R10: 0000000000000002 R11: ffff888078980000 R12: 0000000000000246
R13: ffff888078980000 R14: 00000000ffffffff R15: ffffffff8cb1ec20
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00dda0000 CR3: 000000000c88e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 00000000ffff734c DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
lockdep_recursion_inc kernel/locking/lockdep.c:461 [inline]
lock_is_held_type+0x77/0x190 kernel/locking/lockdep.c:5707
lock_is_held include/linux/lockdep.h:279 [inline]
rcu_read_lock_sched_held+0x89/0x130 kernel/rcu/update.c:125
trace_kmalloc+0x2d/0xe0 include/trace/events/kmem.h:46
kmem_cache_alloc_trace+0x83/0x310 mm/slub.c:3254
kmalloc include/linux/slab.h:600 [inline]
kzalloc include/linux/slab.h:733 [inline]
ieee802_11_parse_elems_crc+0xce/0x1130 net/mac80211/util.c:1502
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2257 [inline]
ieee80211_bss_info_update+0x845/0xc30 net/mac80211/scan.c:212
ieee80211_rx_bss_info net/mac80211/ibss.c:1119 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1610 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1659/0x28c0 net/mac80211/ibss.c:1639
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), 1 bytes skipped:
0: 24 30 and $0x30,%al
2: 48 c7 c7 e0 8c e9 8a mov $0xffffffff8ae98ce0,%rdi
9: 31 c0 xor %eax,%eax
b: e8 b3 f6 fd ff callq 0xfffdf6c3
10: e8 68 67 ff ff callq 0xffff677d
15: eb a5 jmp 0xffffffbc
17: e8 6d ed ff ff callq 0xffffed89
1c: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1)
23: 00 00 00
26: 0f 1f 00 nopl (%rax)
* 29: 48 89 fe mov %rdi,%rsi <-- trapping instruction
2c: 48 c7 c7 60 8c e9 8a mov $0xffffffff8ae98c60,%rdi
33: e9 d1 fe ff ff jmpq 0xffffff09
38: cc int3
39: eb 1e jmp 0x59
3b: 0f 1f 00 nopl (%rax)
3e: 48 rex.W