INFO: task syz-executor213:5830 blocked for more than 143 seconds.
Not tainted 6.13.0-rc3-syzkaller-00082-gbaaa2567a712 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor213 state:D
stack:26192 pid:5830 tgid:5822 ppid:5821 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_timeout+0xb0/0x290 kernel/time/sleep_timeout.c:75
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+0xa37/0xc50 kernel/workqueue.c:4231
__cancel_work_sync+0xbc/0x110 kernel/workqueue.c:4351
uhid_dev_destroy drivers/hid/uhid.c:584 [inline]
uhid_char_release+0xac/0x600 drivers/hid/uhid.c:662
__fput+0x23c/0xa50 fs/file_table.c:450
task_work_run+0x24f/0x310 kernel/task_work.c:239
exit_task_work include/linux/task_work.h:43 [inline]
do_exit+0xa2f/0x28e0 kernel/exit.c:938
do_group_exit+0x207/0x2c0 kernel/exit.c:1087
get_signal+0x16b2/0x1750 kernel/signal.c:3017
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb037820589
RSP: 002b:00007fb0377d3238 EFLAGS: 00000246
ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fb0378a3308 RCX: 00007fb037820589
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fb0378a3308
RBP: 00007fb0378a3300 R08: 00007fb0377d36c0 R09: 00007fb0377d36c0
R10: 0000000000000000 R11: 0000000000000246 R12: 6968752f7665642f
R13: 0000000000000000 R14: 00007ffce8b41060 R15: 00007ffce8b41148
INFO: task syz-executor213:5847 blocked for more than 145 seconds.
Not tainted 6.13.0-rc3-syzkaller-00082-gbaaa2567a712 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor213 state:D
stack:26448 pid:5847 tgid:5845 ppid:5817 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_timeout+0xb0/0x290 kernel/time/sleep_timeout.c:75
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+0xa37/0xc50 kernel/workqueue.c:4231
__cancel_work_sync+0xbc/0x110 kernel/workqueue.c:4351
uhid_dev_destroy drivers/hid/uhid.c:584 [inline]
uhid_char_release+0xac/0x600 drivers/hid/uhid.c:662
__fput+0x23c/0xa50 fs/file_table.c:450
task_work_run+0x24f/0x310 kernel/task_work.c:239
exit_task_work include/linux/task_work.h:43 [inline]
do_exit+0xa2f/0x28e0 kernel/exit.c:938
do_group_exit+0x207/0x2c0 kernel/exit.c:1087
get_signal+0x16b2/0x1750 kernel/signal.c:3017
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb037820589
RSP: 002b:00007fb0377d3238 EFLAGS: 00000246
ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007fb0378a3308 RCX: 00007fb037820589
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fb0378a330c
RBP: 00007fb0378a3300 R08: 00007fb0377d36c0 R09: 00007fb0377d36c0
R10: 00007fb0377d36c0 R11: 0000000000000246 R12: 6968752f7665642f
R13: 0000000000000000 R14: 00007ffce8b41060 R15: 00007ffce8b41148
INFO: task syz-executor213:5857 blocked for more than 147 seconds.
Not tainted 6.13.0-rc3-syzkaller-00082-gbaaa2567a712 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor213 state:D stack:26448 pid:5857 tgid:5856 ppid:5825 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_timeout+0xb0/0x290 kernel/time/sleep_timeout.c:75
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+0xa37/0xc50 kernel/workqueue.c:4231
__cancel_work_sync+0xbc/0x110 kernel/workqueue.c:4351
uhid_dev_destroy drivers/hid/uhid.c:584 [inline]
uhid_char_release+0xac/0x600 drivers/hid/uhid.c:662
__fput+0x23c/0xa50 fs/file_table.c:450
task_work_run+0x24f/0x310 kernel/task_work.c:239
exit_task_work include/linux/task_work.h:43 [inline]
do_exit+0xa2f/0x28e0 kernel/exit.c:938
do_group_exit+0x207/0x2c0 kernel/exit.c:1087
get_signal+0x16b2/0x1750 kernel/signal.c:3017
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb037820589
RSP: 002b:00007fb0377d3238 EFLAGS: 00000246
ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fb0378a3308 RCX: 00007fb037820589
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fb0378a3308
RBP: 00007fb0378a3300 R08: 00007fb0377d36c0 R09: 00007fb0377d36c0
R10: 0000000000000000 R11: 0000000000000246 R12: 6968752f7665642f
R13: 0000000000000000 R14: 00007ffce8b41060 R15: 00007ffce8b41148
Showing all locks held in the system:
3 locks held by kworker/0:0/8:
1 lock held by khungtaskd/31:
#0:
ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}
, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744
3 locks held by kworker/0:2/59:
4 locks held by udevd/5193:
#0:
ffff88803469fc30 (&p->lock){+.+.}-{4:4}
, at: seq_read_iter+0xb4/0xd70 fs/seq_file.c:182
#1:
ffff88807f3ac888
(
&of->mutex
#2
){+.+.}-{4:4}
, at: kernfs_seq_start+0x53/0x3b0 fs/kernfs/file.c:154
#2:
ffff8880346f1698
(kn->active#5){++++}-{0:0}, at: kernfs_seq_start+0x72/0x3b0 fs/kernfs/file.c:155
#3: ffff88801bfe5a20
(
&dev->mutex
){....}-{4:4}
, at: device_lock include/linux/device.h:1014 [inline]
, at: uevent_show+0x17d/0x340 drivers/base/core.c:2729
2 locks held by getty/5576:
#0:
ffff8880314b30a0 (
&tty->ldisc_sem
){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1:
ffffc9000332b2f0
(
&ldata->atomic_read_lock
){+.+.}-{4:4}
, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
3 locks held by kworker/1:3/5849:
3 locks held by kworker/0:3/5855:
3 locks held by kworker/0:4/5859:
4 locks held by udevd/5866:
#0:
ffff8880347dbd58
(
&p->lock
){+.+.}-{4:4}
, at: seq_read_iter+0xb4/0xd70 fs/seq_file.c:182
#1:
ffff888144f47088
(
&of->mutex
#2
){+.+.}-{4:4}, at: kernfs_seq_start+0x53/0x3b0 fs/kernfs/file.c:154
#2:
ffff888034851698
(
kn->active
#5
){++++}-{0:0}
, at: kernfs_seq_start+0x72/0x3b0 fs/kernfs/file.c:155
#3:
ffff8880765f1a20 (&dev->mutex
){....}-{4:4}
, at: device_lock include/linux/device.h:1014 [inline]
, at: uevent_show+0x17d/0x340 drivers/base/core.c:2729
4 locks held by udevd/5869:
#0:
ffff88803200a8b8
(
&p->lock){+.+.}-{4:4}, at: seq_read_iter+0xb4/0xd70 fs/seq_file.c:182
#1:
ffff88806f5d5088
(
&of->mutex
#2
){+.+.}-{4:4}
, at: kernfs_seq_start+0x53/0x3b0 fs/kernfs/file.c:154
#2:
ffff888034853788
(
kn->active#5
){++++}-{0:0}
, at: kernfs_seq_start+0x72/0x3b0 fs/kernfs/file.c:155
#3: ffff888078d89a20
(&dev->mutex
){....}-{4:4}
, at: device_lock include/linux/device.h:1014 [inline]
, at: uevent_show+0x17d/0x340 drivers/base/core.c:2729
4 locks held by udevd/5871:
#0:
ffff8880241b10a0
(
&p->lock
){+.+.}-{4:4}
, at: seq_read_iter+0xb4/0xd70 fs/seq_file.c:182
#1:
ffff8880288efc88
(&of->mutex#2){+.+.}-{4:4}, at: kernfs_seq_start+0x53/0x3b0 fs/kernfs/file.c:154
#2:
ffff888034260878
(
kn->active
#5
){++++}-{0:0}
, at: kernfs_seq_start+0x72/0x3b0 fs/kernfs/file.c:155
#3: ffff88807d339a20 (&dev->mutex
){....}-{4:4}
, at: device_lock include/linux/device.h:1014 [inline]
, at: uevent_show+0x17d/0x340 drivers/base/core.c:2729
2 locks held by dhcpcd/5879:
#0:
ffff888070a85008
(
&sb->s_type->i_mutex_key
#9
){+.+.}-{4:4}
, at: inode_lock include/linux/fs.h:818 [inline]
, at: __sock_release net/socket.c:639 [inline]
, at: sock_close+0x90/0x240 net/socket.c:1408
#1: ffffffff8e93cff8
(rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline]
(rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:976
2 locks held by dhcpcd/5880:
#0:
ffff8880269ea258
(
sk_lock-AF_PACKET
){+.+.}-{0:0}
, at: lock_sock include/net/sock.h:1617 [inline]
, at: packet_do_bind+0x32/0xcb0 net/packet/af_packet.c:3267
#1:
ffffffff8e93cff8
(
rcu_state.exp_mutex
){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline]
){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:976
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.13.0-rc3-syzkaller-00082-gbaaa2567a712 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
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:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
watchdog+0xff6/0x1040 kernel/hung_task.c:397
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 8 Comm: kworker/0:0 Not tainted 6.13.0-rc3-syzkaller-00082-gbaaa2567a712 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
Workqueue: events uhid_device_add_worker
RIP: 0010:get_current arch/x86/include/asm/current.h:49 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:216
Code: 8b 3d c4 9f 8d 0c 48 89 de 5b e9 e3 64 58 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 <65> 48 8b 0c 25 80 d4 03 00 65 8b 15 d0 60 64 7e 81 e2 00 01 ff 00
RSP: 0018:ffffc900000d6858 EFLAGS: 00000246
RAX: ffffffff8bbc86f7 RBX: 000000000000006c RCX: ffff88801bee5a00
RDX: 0000000000000006 RSI: ffffffff8fffbe40 RDI: 000000000000006c
RBP: ffffc900000d6950 R08: 0000000000000001 R09: ffffffff8bbc858f
R10: 0000000000000006 R11: ffff88801bee5a00 R12: 1ffffffff1816b30
R13: ffffffff8c0b5984 R14: dffffc0000000000 R15: ffff000000000500
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002009ef40 CR3: 0000000033728000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
format_decode+0xf37/0x1bb0 lib/vsprintf.c:2713
vsnprintf+0x14f/0x1da0 lib/vsprintf.c:2800
sprintf+0xda/0x120 lib/vsprintf.c:3052
print_time kernel/printk/printk.c:1381 [inline]
info_print_prefix+0x16b/0x310 kernel/printk/printk.c:1407
record_print_text kernel/printk/printk.c:1456 [inline]
printk_get_next_message+0x6f4/0xbf0 kernel/printk/printk.c:3008
console_emit_next_record kernel/printk/printk.c:3076 [inline]
console_flush_all+0x569/0xeb0 kernel/printk/printk.c:3210
__console_flush_and_unlock kernel/printk/printk.c:3269 [inline]
console_unlock+0x14f/0x3b0 kernel/printk/printk.c:3309
vprintk_emit+0x730/0xa10 kernel/printk/printk.c:2432