INFO: task syz-executor381:5069 blocked for more than 143 seconds.
Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor381 state:D stack:25968 pid:5069 tgid:5069 ppid:5067 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
__schedule_loop kernel/sched/core.c:6813 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6828
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2548
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+0x355/0x620 kernel/sched/completion.c:148
__flush_work+0xa7b/0xc90 kernel/workqueue.c:4205
__cancel_work_sync+0x330/0x6d0 kernel/workqueue.c:4304
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:422
task_work_run+0x24f/0x310 kernel/task_work.c:180
exit_task_work include/linux/task_work.h:38 [inline]
do_exit+0xa1b/0x27e0 kernel/exit.c:878
do_group_exit+0x207/0x2c0 kernel/exit.c:1027
__do_sys_exit_group kernel/exit.c:1038 [inline]
__se_sys_exit_group kernel/exit.c:1036 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1036
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fc4a83b7229
RSP: 002b:00007ffc5e870e48 EFLAGS: 00000246
ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc4a83b7229
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
RBP: 00007fc4a843c2b0 R08: ffffffffffffffb0 R09: 00007ffc5e870f60
R10: 00007ffc5e870f60 R11: 0000000000000246 R12: 00007fc4a843c2b0
R13: 0000000000000000 R14: 00007fc4a843ce40 R15: 00007fc4a837d540
INFO: task syz-executor381:5078 blocked for more than 145 seconds.
Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor381 state:D stack:26544 pid:5078 tgid:5071 ppid:5068 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
__schedule_loop kernel/sched/core.c:6813 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6828
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2548
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+0x355/0x620 kernel/sched/completion.c:148
__flush_work+0xa7b/0xc90 kernel/workqueue.c:4205
__cancel_work_sync+0x330/0x6d0 kernel/workqueue.c:4304
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:422
task_work_run+0x24f/0x310 kernel/task_work.c:180
exit_task_work include/linux/task_work.h:38 [inline]
do_exit+0xa1b/0x27e0 kernel/exit.c:878
do_group_exit+0x207/0x2c0 kernel/exit.c:1027
get_signal+0x176e/0x1850 kernel/signal.c:2907
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:105 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline]
syscall_exit_to_user_mode+0xc9/0x360 kernel/entry/common.c:212
do_syscall_64+0x10a/0x240 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fc4a83b91c9
RSP: 002b:00007fc4a836c238 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fc4a843c308 RCX: 00007fc4a83b91c9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fc4a843c308
RBP: 00007fc4a843c300 R08: 00007fc4a836c6c0 R09: 00007fc4a836c6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 6968752f7665642f
R13: 0000000000000000 R14: 00007ffc5e870ce0 R15: 00007ffc5e870dc8
INFO: task syz-executor381:5075 blocked for more than 148 seconds.
Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor381 state:D stack:26584 pid:5075 tgid:5075 ppid:5072 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5409 [inline]
__schedule+0x17d3/0x4a20 kernel/sched/core.c:6736
__schedule_loop kernel/sched/core.c:6813 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6828
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2548
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+0x355/0x620 kernel/sched/completion.c:148
__flush_work+0xa7b/0xc90 kernel/workqueue.c:4205
__cancel_work_sync+0x330/0x6d0 kernel/workqueue.c:4304
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:422
task_work_run+0x24f/0x310 kernel/task_work.c:180
exit_task_work include/linux/task_work.h:38 [inline]
do_exit+0xa1b/0x27e0 kernel/exit.c:878
do_group_exit+0x207/0x2c0 kernel/exit.c:1027
__do_sys_exit_group kernel/exit.c:1038 [inline]
__se_sys_exit_group kernel/exit.c:1036 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1036
do_syscall_64+0xfb/0x240
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fc4a83b7229
RSP: 002b:00007ffc5e870e48 EFLAGS: 00000246
ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc4a83b7229
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
RBP: 00007fc4a843c2b0 R08: ffffffffffffffb0 R09: 00007ffc5e870f60
R10: 00007ffc5e870f60 R11: 0000000000000246 R12: 00007fc4a843c2b0
R13: 0000000000000000 R14: 00007fc4a843ce40 R15: 00007fc4a837d540
Showing all locks held in the system:
3 locks held by kworker/0:0/7:
3 locks held by kworker/0:1/8:
1 lock held by khungtaskd/29:
#0:
ffffffff8e132020
(
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/1:1/44:
3 locks held by kworker/0:2/56:
2 locks held by getty/4820:
#0:
ffff88802a6f40a0
(&tty->ldisc_sem){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1:
ffffc900015e72f0
(
&ldata->atomic_read_lock
){+.+.}-{3:3}
, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2201
3 locks held by kworker/1:3/5085:
2 locks held by dhcpcd/5118:
#0:
ffff88802c346258 (sk_lock-AF_PACKET){+.+.}-{0:0}
, at: lock_sock include/net/sock.h:1671 [inline]
, at: packet_do_bind+0x32/0xcb0 net/packet/af_packet.c:3204
#1:
ffffffff8e1373b8
(
rcu_state.exp_mutex
){+.+.}-{3:3}
, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
, at: synchronize_rcu_expedited+0x39a/0x820 kernel/rcu/tree_exp.h:939
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
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+0xfb0/0xff0 kernel/hung_task.c:379
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 56 Comm: kworker/0:2 Not tainted 6.8.0-syzkaller-08073-g480e035fc4c7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Workqueue: events uhid_device_add_worker
RIP: 0010:serial8250_console_write+0x0/0x1840 drivers/tty/serial/8250/8250_port.c:3391
Code: 63 fc 48 c7 c7 00 a3 8f 8e 4c 89 f6 e8 39 c5 ad ff e9 b4 fb ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48
RSP: 0018:ffffc9000131ee38 EFLAGS: 00000006
RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff888015be9e00
RDX: 0000000000000052 RSI: ffffffff945198a0 RDI: ffffffff948044e0
RBP: ffffc9000131eff0 R08: ffffffff8530cb33 R09: 1ffffffff259c2a0
R10: dffffc0000000000 R11: ffffffff8530caf0 R12: 1ffff92000263ded
R13: ffffffff8e8f8720 R14: ffffffff8530caf0 R15: 1ffffffff1bf9650
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056217bfa5600 CR3: 000000000df32000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
console_emit_next_record kernel/printk/printk.c:2907 [inline]
console_flush_all+0x865/0xfd0 kernel/printk/printk.c:2973
console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3042
vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2342
dev_vprintk_emit+0x2ae/0x330 drivers/base/core.c:4864
dev_printk_emit+0xdd/0x120 drivers/base/core.c:4875
_dev_warn+0x122/0x170 drivers/base/core.c:4931
hid_parser_main+0x71f/0xaa0 drivers/hid/hid-core.c:632
hid_open_report+0xafa/0x14a0 drivers/hid/hid-core.c:1276
hid_parse include/linux/hid.h:1118 [inline]
hid_generic_probe+0x3d/0x90 drivers/hid/hid-generic.c:63
__hid_device_probe drivers/hid/hid-core.c:2633 [inline]
hid_device_probe+0x26e/0x4f0 drivers/hid/hid-core.c:2670
really_probe+0x29e/0xc50 drivers/base/dd.c:658
__driver_probe_device+0x1a2/0x3e0 drivers/base/dd.c:800
driver_probe_device+0x50/0x430 drivers/base/dd.c:830
__device_attach_driver+0x2d6/0x530 drivers/base/dd.c:958
bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:457
__device_attach+0x333/0x520 drivers/base/dd.c:1030
bus_probe_device+0x189/0x260 drivers/base/bus.c:532
device_add+0x8ff/0xca0 drivers/base/core.c:3639
hid_add_device+0x3b6/0x520 drivers/hid/hid-core.c:2816
uhid_device_add_worker+0x44/0xf0 drivers/hid/uhid.c:73
process_one_work kernel/workqueue.c:3254 [inline]
process_scheduled_works+0xa00/0x1770 kernel/workqueue.c:3335
worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
kthread+0x2f0/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243