INFO: task kworker/u5:6:3651 blocked for more than 143 seconds.
Not tainted 5.19.0-rc5-syzkaller-00105-g9f09069cde34 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u5:6 state:D stack:25784 pid: 3651 ppid: 2 flags:0x00004000
Workqueue: hci2 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_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_power_on+0x2e1/0x650 net/bluetooth/hci_core.c:981
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.1:27482 blocked for more than 143 seconds.
Not tainted 5.19.0-rc5-syzkaller-00105-g9f09069cde34 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27328 pid:27482 ppid: 1 flags:0x00004000
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_workqueue+0x76a/0x16a0 kernel/workqueue.c:2861
hci_dev_open+0x136/0x2a0 net/bluetooth/hci_core.c:526
sock_do_ioctl+0x151/0x450 net/socket.c:1169
sock_ioctl+0x481/0x770 net/socket.c:1286
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: 0033:0x7fbe65e88ec7
RSP: 002b:00007ffcd78301a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ffcd7830868 RCX: 00007fbe65e88ec7
RDX: 0000000000000002 RSI: 00000000400448c9 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00007fbe655ff700 R09: 00007fbe655ff700
R10: 00007fbe655ff9d0 R11: 0000000000000246 R12: 0000000000000003
R13: 00007ffcd7830300 R14: 00007fbe65f9c9b8 R15: 000000000000000c
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/3296:
#0: ffff88814ade9098 (&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/u5:6/3651:
#0: ffff8880758e5138 ((wq_completion)hci2){+.+.}-{0:0}, at: process_one_work+0x796/0xd10 kernel/workqueue.c:2262
#1: ffffc9000328fd00 ((work_completion)(&hdev->power_on)){+.+.}-{0:0}, at: process_one_work+0x7d0/0xd10 kernel/workqueue.c:2264
#2: ffff8880170fd048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close net/bluetooth/hci_core.c:551 [inline]
#2: ffff8880170fd048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_power_on+0x2d8/0x650 net/bluetooth/hci_core.c:981
2 locks held by kworker/u4:7/4676:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 5.19.0-rc5-syzkaller-00105-g9f09069cde34 #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: 21570 Comm: kworker/u4:6 Not tainted 5.19.0-rc5-syzkaller-00105-g9f09069cde34 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
Workqueue: phy11 ieee80211_iface_work
RIP: 0010:__debug_check_no_obj_freed lib/debugobjects.c:978 [inline]
RIP: 0010:debug_check_no_obj_freed+0xf8/0x650 lib/debugobjects.c:1020
Code: c1 ed 03 48 ba 00 00 00 00 00 fc ff df 80 7c 15 00 00 74 12 4c 89 ef e8 26 e3 a4 fd 48 ba 00 00 00 00 00 fc ff df 49 8b 45 00 <48> 85 c0 0f 84 af 04 00 00 48 89 6c 24 50 4c 89 6c 24 58 4c 89 64
RSP: 0018:ffffc9001697f9d8 EFLAGS: 00000046
RAX: ffff888073874c78 RBX: ffff8880776c2600 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffffc9001697f8c0
RBP: 1ffffffff2309c27 R08: dffffc0000000000 R09: fffff52002d2ff18
R10: fffff52002d2ff19 R11: 1ffff92002d2ff18 R12: ffff8880776c2000
R13: ffffffff9184e138 R14: 0000000000000000 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c003db1848 CR3: 000000000c88e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
slab_free_hook mm/slub.c:1729 [inline]
slab_free_freelist_hook+0xcf/0x1a0 mm/slub.c:1780
slab_free mm/slub.c:3536 [inline]
kfree+0xc6/0x210 mm/slub.c:4584
skb_free_head net/core/skbuff.c:655 [inline]
skb_release_data+0x596/0x730 net/core/skbuff.c:677
skb_release_all net/core/skbuff.c:742 [inline]
__kfree_skb+0x56/0x1d0 net/core/skbuff.c:756
kfree_skb include/linux/skbuff.h:1375 [inline]
ieee80211_iface_work+0x25a/0xcd0 net/mac80211/iface.c:1583
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: c1 ed 03 shr $0x3,%ebp
3: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx
a: fc ff df
d: 80 7c 15 00 00 cmpb $0x0,0x0(%rbp,%rdx,1)
12: 74 12 je 0x26
14: 4c 89 ef mov %r13,%rdi
17: e8 26 e3 a4 fd callq 0xfda4e342
1c: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx
23: fc ff df
26: 49 8b 45 00 mov 0x0(%r13),%rax
* 2a: 48 85 c0 test %rax,%rax <-- trapping instruction
2d: 0f 84 af 04 00 00 je 0x4e2
33: 48 89 6c 24 50 mov %rbp,0x50(%rsp)
38: 4c 89 6c 24 58 mov %r13,0x58(%rsp)
3d: 4c rex.WR
3e: 89 .byte 0x89
3f: 64 fs