INFO: task syz-executor.1:5167 blocked for more than 143 seconds.
Not tainted 6.8.0-rc7-syzkaller-00017-g29cd507cbec2 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:24248 pid:5167 tgid:5167 ppid:5095 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2159
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion+0x354/0x620 kernel/sched/completion.c:148
__flush_work+0x950/0xad0 kernel/workqueue.c:3410
__cancel_work_timer+0x51d/0x6b0 kernel/workqueue.c:3497
uhid_dev_destroy drivers/hid/uhid.c:584 [inline]
uhid_char_release+0xaf/0x600 drivers/hid/uhid.c:662
__fput+0x429/0x8a0 fs/file_table.c:376
__do_sys_close fs/open.c:1554 [inline]
__se_sys_close fs/open.c:1539 [inline]
__x64_sys_close+0x7e/0x110 fs/open.c:1539
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fd83327cc9a
RSP: 002b:00007fff40f5d150 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fd83327cc9a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000048 R08: 0000001b31360000 R09: 00007fd8333abf8c
R10: 0000000000000120 R11: 0000000000000293 R12: 00007fd832e003c0
R13: ffffffffffffffff R14: 00007fd832e00000 R15: 0000000000013a34
INFO: task syz-executor.4:5168 blocked for more than 144 seconds.
Not tainted 6.8.0-rc7-syzkaller-00017-g29cd507cbec2 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D
stack:26640 pid:5168 tgid:5168 ppid:5086 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2159
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion+0x354/0x620 kernel/sched/completion.c:148
__flush_work+0x950/0xad0 kernel/workqueue.c:3410
__cancel_work_timer+0x51d/0x6b0 kernel/workqueue.c:3497
uhid_dev_destroy drivers/hid/uhid.c:584 [inline]
uhid_char_release+0xaf/0x600 drivers/hid/uhid.c:662
__fput+0x429/0x8a0 fs/file_table.c:376
__do_sys_close fs/open.c:1554 [inline]
__se_sys_close fs/open.c:1539 [inline]
__x64_sys_close+0x7e/0x110 fs/open.c:1539
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f471b67cc9a
RSP: 002b:00007fff095f1850 EFLAGS: 00000293
ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f471b67cc9a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000048 R08: 0000001b30f60000 R09: 00007f471b7abf8c
R10: 0000000000000120 R11: 0000000000000293 R12: 00007f471b2003c0
R13: ffffffffffffffff R14: 00007f471b200000 R15: 0000000000013c30
INFO: task syz-executor.2:5169 blocked for more than 145 seconds.
Not tainted 6.8.0-rc7-syzkaller-00017-g29cd507cbec2 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:26648 pid:5169 tgid:5169 ppid:5081 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2159
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion+0x354/0x620 kernel/sched/completion.c:148
__flush_work+0x950/0xad0 kernel/workqueue.c:3410
__cancel_work_timer+0x51d/0x6b0 kernel/workqueue.c:3497
uhid_dev_destroy drivers/hid/uhid.c:584 [inline]
uhid_char_release+0xaf/0x600 drivers/hid/uhid.c:662
__fput+0x429/0x8a0 fs/file_table.c:376
__do_sys_close fs/open.c:1554 [inline]
__se_sys_close fs/open.c:1539 [inline]
__x64_sys_close+0x7e/0x110 fs/open.c:1539
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7fddd487cc9a
RSP: 002b:00007fff5c444f20 EFLAGS: 00000293
ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fddd487cc9a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000048 R08: 0000001b30d60000 R09: 00007fddd49abf8c
R10: 0000000000000120 R11: 0000000000000293 R12: 00007fddd44003c0
R13: ffffffffffffffff R14: 00007fddd4400000 R15: 0000000000014033
Showing all locks held in the system:
3 locks held by kworker/0:0/8:
#0:
ffff888014c78938
(
(wq_completion)events
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:2608 [inline]
, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706
#1:
ffffc900000d7d20
(
(linkwatch_work).work
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:2608 [inline]
, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706
#2:
ffffffff8f3638c8
(rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:281
2 locks held by kworker/0:1/9:
#0:
ffff888014c7a538
(
(wq_completion)rcu_gp
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:2608 [inline]
, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706
#1: ffffc900000e7d20
(
(work_completion)(&rew->rew_work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:2608 [inline]
, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706
5 locks held by kworker/1:1/27:
1 lock held by khungtaskd/29:
#0: ffffffff8e130be0
(
rcu_read_lock
){....}-{1:2}
, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
3 locks held by kworker/u4:3/49:
#0:
ffff888014c79538
(
(wq_completion)events_unbound
){+.+.}-{0:0}
, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559
#1:
ffff8880b9428988
(
&per_cpu_ptr(group->pcpu, cpu)->seq
){-.-.}-{0:0}
, at: psi_task_switch+0x441/0x770 kernel/sched/psi.c:988
#2:
ffff8880680c0768
(
&rdev->wiphy.mtx
){+.+.}-{3:3}
, at: wiphy_lock include/net/cfg80211.h:5932 [inline]
, at: cfg80211_wiphy_work+0x35/0x260 net/wireless/core.c:424
5 locks held by kworker/u4:4/61:
#0: ffff8880b943c918 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:559
#1: ffff8880b9428988 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x441/0x770 kernel/sched/psi.c:988
#2: ffff8880b9429898 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x120/0x260 kernel/time/timer.c:999
#3: ffffffff946d4f08 (&obj_hash[i].lock){-.-.}-{2:2}
, at: debug_object_activate+0x16d/0x510 lib/debugobjects.c:708
#4:
ffffffff9465f0b0
(&obj_hash[i].lock){-.-.}-{2:2}, at: __debug_check_no_obj_freed lib/debugobjects.c:978 [inline]
(&obj_hash[i].lock){-.-.}-{2:2}, at: debug_check_no_obj_freed+0x234/0x580 lib/debugobjects.c:1019
7 locks held by kworker/u4:9/2439:
#0:
ffff888014c7b938
(
(wq_completion)netns
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:2608 [inline]
, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706
#1: ffffc900096ffd20
(
net_cleanup_work
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:2608 [inline]
, at: process_scheduled_works+0x825/0x1420 kernel/workqueue.c:2706
#2:
ffffffff8f357350
(
pernet_ops_rwsem
){++++}-{3:3}
, at: cleanup_net+0xf5/0xb90 net/core/net_namespace.c:580
#3:
ffff888075e190e8
(
&dev->mutex
){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
){....}-{3:3}, at: devl_dev_lock net/devlink/devl_internal.h:108 [inline]
){....}-{3:3}, at: devlink_pernet_pre_exit+0x13b/0x440 net/devlink/core.c:506
#4: ffff888075e1a250 (&devlink->lock_key#8){+.+.}-{3:3}, at: devl_lock net/devlink/core.c:276 [inline]
#4: ffff888075e1a250 (&devlink->lock_key#8){+.+.}-{3:3}, at: devl_dev_lock net/devlink/devl_internal.h:109 [inline]
#4: ffff888075e1a250 (&devlink->lock_key#8){+.+.}-{3:3}, at: devlink_pernet_pre_exit+0x14d/0x440 net/devlink/core.c:506
#5: ffffffff8f3638c8 (rtnl_mutex){+.+.}-{3:3}, at: nsim_destroy+0x40/0x160 drivers/net/netdevsim/netdev.c:417
#6: ffffffff8e136578 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline]
#6: ffffffff8e136578 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a3/0x890 kernel/rcu/tree_exp.h:995
7 locks held by kworker/1:2/4529:
1 lock held by dhcpcd/4729:
#0: ffffffff8f3638c8 (rtnl_mutex){+.+.}-{3:3}, at: devinet_ioctl+0x2ce/0x1bc0 net/ipv4/devinet.c:1091
2 locks held by getty/4810:
#0: ffff88802a78e0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002efe2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
1 lock held by syz-executor.1/5167:
#0: ffffffff8e136578 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:324 [inline]
#0: ffffffff8e136578 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46c/0x890 kernel/rcu/tree_exp.h:995
1 lock held by syz-executor.2/5268:
#0: ffffffff8f3638c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3638c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.1/5273:
#0: ffffffff8f3638c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3638c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.0/5278:
#0: ffffffff8f3638c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3638c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.3/5288:
#0:
ffffffff8f3638c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.4/5290:
#0:
ffffffff8f3638c8
(
rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc7-syzkaller-00017-g29cd507cbec2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xfaf/0xff0 kernel/hung_task.c:379
kthread+0x2ef/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5132 Comm: kworker/1:4 Not tainted 6.8.0-rc7-syzkaller-00017-g29cd507cbec2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: events_power_efficient wg_ratelimiter_gc_entries
RIP: 0010:task_irq_context kernel/locking/lockdep.c:4608 [inline]
RIP: 0010:__lock_acquire+0x3e1/0x1fd0 kernel/locking/lockdep.c:5074
Code: 89 03 65 8b 05 bc 66 91 7e 31 db 85 c0 0f 95 c3 01 db 48 8b 44 24 50 48 8d b8 a4 0a 00 00 48 89 f8 48 c1 e8 03 48 89 44 24 60 <0f> b6 04 30 84 c0 44 8b 74 24 38 48 89 7c 24 18 0f 85 59 13 00 00
RSP: 0018:ffffc90004837930 EFLAGS: 00000803
RAX: 1ffff110043178c4 RBX: 0000000000000000 RCX: ffffffff94450303
RDX: 0000000000000002 RSI: dffffc0000000000 RDI: ffff8880218bc624
RBP: 000000000000000a R08: ffff8880218bc640 R09: 0000000000000000
R10: dffffc0000000000 R11: fffffbfff1f0880e R12: ffffffff8eb88198
R13: 00000000000006dc R14: 000000000000000a R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f41ad913ae0 CR3: 000000000df32000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1e3/0x530 kernel/locking/lockdep.c:5754
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:351 [inline]
wg_ratelimiter_gc_entries+0x60/0x470 drivers/net/wireguard/ratelimiter.c:63
process_one_work kernel/workqueue.c:2633 [inline]
process_scheduled_works+0x913/0x1420 kernel/workqueue.c:2706
worker_thread+0xa5f/0x1000 kernel/workqueue.c:2787
kthread+0x2ef/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243