INFO: task kworker/u5:2:3625 blocked for more than 143 seconds.
Not tainted 5.19.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u5:2 state:D stack:25552 pid: 3625 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.0:12763 blocked for more than 143 seconds.
Not tainted 5.19.0-rc5-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:26776 pid:12763 ppid: 3616 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_set_ldisc+0x22e/0x670 drivers/tty/tty_ldisc.c:552
tty_ioctl+0xada/0xc60 drivers/tty/tty_io.c:2714
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f322c489109
RSP: 002b:00007f322d6ae168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f322c59bf60 RCX: 00007f322c489109
RDX: 00000000200000c0 RSI: 0000000000005423 RDI: 0000000000000003
RBP: 00007f322c4e305d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd7b0ac43f R14: 00007f322d6ae300 R15: 0000000000022000
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
2 locks held by getty/3289:
#0: ffff88802708f098 (&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/u5:2/3625:
#0: ffff88804bcba138 ((wq_completion)hci6){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc90003c2fd00 ((work_completion)(&hdev->power_on)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffff8880579d5048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_open net/bluetooth/hci_core.c:480 [inline]
#2: ffff8880579d5048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_power_on+0x178/0x650 net/bluetooth/hci_core.c:963
3 locks held by kworker/u4:2/9543:
3 locks held by syz-executor.0/12763:
#0: ffff88807766e1c0 (&tty->legacy_mutex){+.+.}-{3:3}, at: tty_set_ldisc+0x4e/0x670 drivers/tty/tty_ldisc.c:529
#1: ffff88807766e098 (&tty->ldisc_sem){++++}-{0:0}, at: __tty_ldisc_lock drivers/tty/tty_ldisc.c:290 [inline]
#1: ffff88807766e098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_lock+0x6a/0xb0 drivers/tty/tty_ldisc.c:314
#2: ffff8880579d5048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:551 [inline]
#2: ffff8880579d5048 (&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-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
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: 8 Comm: kworker/u4:0 Not tainted 5.19.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
Workqueue: phy4 ieee80211_iface_work
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:120 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x1e2/0x2e0 mm/kasan/generic.c:189
Code: 4e 8d 7c 0d 08 0f 1f 00 4d 8b 19 4d 85 db 75 3d 49 83 c1 08 ff cb 75 f0 4d 29 fa 4d 89 d6 eb 03 4d 89 cf 49 8d 6e 07 4d 85 f6 <49> 0f 49 ee 48 83 e5 f8 49 29 ee 74 0f 90 41 80 3f 00 75 78 49 ff
RSP: 0018:ffffc900000d7098 EFLAGS: 00000202
RAX: 00000000e4600201 RBX: 0000000000000000 RCX: ffffffff81da385c
RDX: 0000000000000001 RSI: 0000000000000200 RDI: ffffc900000d70e0
RBP: 000000000000000b R08: dffffc0000000000 R09: fffff5200001ae58
R10: 0000000000000004 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffff9200001ae70 R14: 0000000000000004 R15: fffff5200001ae58
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faeeaf92410 CR3: 000000000c88e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
memset+0x1f/0x40 mm/kasan/shadow.c:44
kasan_save_stack+0x2c/0x60 mm/kasan/common.c:35
__kasan_record_aux_stack+0xaf/0xc0 mm/kasan/generic.c:348
kvfree_call_rcu+0x118/0x840 kernel/rcu/tree.c:3647
cfg80211_update_known_bss+0x15f/0x990
cfg80211_bss_update+0x176/0x2090 net/wireless/scan.c:1715
cfg80211_inform_single_bss_frame_data net/wireless/scan.c:2473 [inline]
cfg80211_inform_bss_frame_data+0x9c3/0x20e0 net/wireless/scan.c:2506
ieee80211_bss_info_update+0x78a/0xc30 net/mac80211/scan.c:190
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):
0: 4e 8d 7c 0d 08 lea 0x8(%rbp,%r9,1),%r15
5: 0f 1f 00 nopl (%rax)
8: 4d 8b 19 mov (%r9),%r11
b: 4d 85 db test %r11,%r11
e: 75 3d jne 0x4d
10: 49 83 c1 08 add $0x8,%r9
14: ff cb dec %ebx
16: 75 f0 jne 0x8
18: 4d 29 fa sub %r15,%r10
1b: 4d 89 d6 mov %r10,%r14
1e: eb 03 jmp 0x23
20: 4d 89 cf mov %r9,%r15
23: 49 8d 6e 07 lea 0x7(%r14),%rbp
27: 4d 85 f6 test %r14,%r14
* 2a: 49 0f 49 ee cmovns %r14,%rbp <-- trapping instruction
2e: 48 83 e5 f8 and $0xfffffffffffffff8,%rbp
32: 49 29 ee sub %rbp,%r14
35: 74 0f je 0x46
37: 90 nop
38: 41 80 3f 00 cmpb $0x0,(%r15)
3c: 75 78 jne 0xb6
3e: 49 rex.WB
3f: ff .byte 0xff