INFO: task kworker/0:0:5 blocked for more than 143 seconds.
Not tainted 5.15.0-rc5-next-20211018-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:0 state:D stack:25584 pid: 5 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x174/0x270 kernel/sched/completion.c:138
port100_send_cmd_sync drivers/nfc/port100.c:926 [inline]
port100_get_command_type_mask drivers/nfc/port100.c:1011 [inline]
port100_probe+0x9ec/0x1320 drivers/nfc/port100.c:1557
usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:517 [inline]
really_probe+0x245/0xcc0 drivers/base/dd.c:596
__driver_probe_device+0x338/0x4d0 drivers/base/dd.c:751
driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:781
__device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:898
bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
__device_attach+0x228/0x4a0 drivers/base/dd.c:969
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
device_add+0xc17/0x1ee0 drivers/base/core.c:3394
usb_set_configuration+0x101e/0x1900 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0xba/0x100 drivers/usb/core/generic.c:238
usb_probe_device+0xd9/0x2c0 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:517 [inline]
really_probe+0x245/0xcc0 drivers/base/dd.c:596
__driver_probe_device+0x338/0x4d0 drivers/base/dd.c:751
driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:781
__device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:898
bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
__device_attach+0x228/0x4a0 drivers/base/dd.c:969
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
device_add+0xc17/0x1ee0 drivers/base/core.c:3394
usb_new_device.cold+0x63f/0x108e drivers/usb/core/hub.c:2563
hub_port_connect drivers/usb/core/hub.c:5348 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5488 [inline]
port_event drivers/usb/core/hub.c:5634 [inline]
hub_event+0x2357/0x4330 drivers/usb/core/hub.c:5716
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2297
worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
INFO: task kworker/0:4:6881 blocked for more than 143 seconds.
Not tainted 5.15.0-rc5-next-20211018-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:4 state:D stack:24936 pid: 6881 ppid: 2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857
do_wait_for_common kernel/sched/completion.c:85 [inline]
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x174/0x270 kernel/sched/completion.c:138
port100_send_cmd_sync drivers/nfc/port100.c:926 [inline]
port100_get_command_type_mask drivers/nfc/port100.c:1011 [inline]
port100_probe+0x9ec/0x1320 drivers/nfc/port100.c:1557
usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:517 [inline]
really_probe+0x245/0xcc0 drivers/base/dd.c:596
__driver_probe_device+0x338/0x4d0 drivers/base/dd.c:751
driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:781
__device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:898
bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
__device_attach+0x228/0x4a0 drivers/base/dd.c:969
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
device_add+0xc17/0x1ee0 drivers/base/core.c:3394
usb_set_configuration+0x101e/0x1900 drivers/usb/core/message.c:2170
usb_generic_driver_probe+0xba/0x100 drivers/usb/core/generic.c:238
usb_probe_device+0xd9/0x2c0 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:517 [inline]
really_probe+0x245/0xcc0 drivers/base/dd.c:596
__driver_probe_device+0x338/0x4d0 drivers/base/dd.c:751
driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:781
__device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:898
bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
__device_attach+0x228/0x4a0 drivers/base/dd.c:969
bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
device_add+0xc17/0x1ee0 drivers/base/core.c:3394
usb_new_device.cold+0x63f/0x108e drivers/usb/core/hub.c:2563
hub_port_connect drivers/usb/core/hub.c:5348 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5488 [inline]
port_event drivers/usb/core/hub.c:5634 [inline]
hub_event+0x2357/0x4330 drivers/usb/core/hub.c:5716
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2297
worker_thread+0x658/0x11f0 kernel/workqueue.c:2444
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
INFO: task syz-executor.5:9148 can't die for more than 144 seconds.
task:syz-executor.5 state:D stack:27504 pid: 9148 ppid: 7048 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665e9
RSP: 002b:00007f4250169188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 0000000000020601 RSI: 00000000200003c0 RDI: ffffffffffffff9c
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007fff96f1772f R14: 00007f4250169300 R15: 0000000000022000
INFO: task syz-executor.5:9148 blocked for more than 144 seconds.
Not tainted 5.15.0-rc5-next-20211018-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:27504 pid: 9148 ppid: 7048 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665e9
RSP: 002b:00007f4250169188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 0000000000020601 RSI: 00000000200003c0 RDI: ffffffffffffff9c
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007fff96f1772f R14: 00007f4250169300 R15: 0000000000022000
INFO: task syz-executor.5:9235 can't die for more than 144 seconds.
task:syz-executor.5 state:D stack:28472 pid: 9235 ppid: 7048 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4196d4
RSP: 002b:00007f4250125040 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056c0f0 RCX: 00000000004196d4
RDX: 0000000000000002 RSI: 00000000004beaa1 RDI: 00000000ffffff9c
RBP: 00000000004beaa1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000020000140 R15: 0000000000022000
INFO: task syz-executor.5:9235 blocked for more than 145 seconds.
Not tainted 5.15.0-rc5-next-20211018-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:28472 pid: 9235 ppid: 7048 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4196d4
RSP: 002b:00007f4250125040 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056c0f0 RCX: 00000000004196d4
RDX: 0000000000000002 RSI: 00000000004beaa1 RDI: 00000000ffffff9c
RBP: 00000000004beaa1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000020000140 R15: 0000000000022000
INFO: task syz-executor.5:9236 can't die for more than 145 seconds.
task:syz-executor.5 state:D stack:28472 pid: 9236 ppid: 7048 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4196d4
RSP: 002b:00007f4250104040 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056c1a8 RCX: 00000000004196d4
RDX: 0000000000000002 RSI: 00000000004beaa1 RDI: 00000000ffffff9c
RBP: 00000000004beaa1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000000 R14: 00000000200000c0 R15: 0000000000022000
INFO: task syz-executor.5:9236 blocked for more than 145 seconds.
Not tainted 5.15.0-rc5-next-20211018-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:28472 pid: 9236 ppid: 7048 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4196d4
RSP: 002b:00007f4250104040 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056c1a8 RCX: 00000000004196d4
RDX: 0000000000000002 RSI: 00000000004beaa1 RDI: 00000000ffffff9c
RBP: 00000000004beaa1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000000 R14: 00000000200000c0 R15: 0000000000022000
INFO: task syz-executor.1:9225 can't die for more than 146 seconds.
task:syz-executor.1 state:D stack:28472 pid: 9225 ppid: 7046 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4196d4
RSP: 002b:00007f8ef3218040 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056c0f0 RCX: 00000000004196d4
RDX: 0000000000000002 RSI: 00000000004beaa1 RDI: 00000000ffffff9c
RBP: 00000000004beaa1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000020000140 R15: 0000000000022000
INFO: task syz-executor.1:9225 blocked for more than 146 seconds.
Not tainted 5.15.0-rc5-next-20211018-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28472 pid: 9225 ppid: 7046 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4196d4
RSP: 002b:00007f8ef3218040 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056c0f0 RCX: 00000000004196d4
RDX: 0000000000000002 RSI: 00000000004beaa1 RDI: 00000000ffffff9c
RBP: 00000000004beaa1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000020000140 R15: 0000000000022000
INFO: task syz-executor.1:9226 can't die for more than 146 seconds.
task:syz-executor.1 state:D stack:28472 pid: 9226 ppid: 7046 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4196d4
RSP: 002b:00007f8ef31f7040 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056c1a8 RCX: 00000000004196d4
RDX: 0000000000000002 RSI: 00000000004beaa1 RDI: 00000000ffffff9c
RBP: 00000000004beaa1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000000 R14: 00000000200000c0 R15: 0000000000022000
INFO: task syz-executor.1:9226 blocked for more than 147 seconds.
Not tainted 5.15.0-rc5-next-20211018-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28472 pid: 9226 ppid: 7046 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4196d4
RSP: 002b:00007f8ef31f7040 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056c1a8 RCX: 00000000004196d4
RDX: 0000000000000002 RSI: 00000000004beaa1 RDI: 00000000ffffff9c
RBP: 00000000004beaa1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000000 R14: 00000000200000c0 R15: 0000000000022000
INFO: task syz-executor.3:9159 can't die for more than 147 seconds.
task:syz-executor.3 state:D stack:27504 pid: 9159 ppid: 7049 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665e9
RSP: 002b:00007fa580757188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 0000000000020601 RSI: 00000000200003c0 RDI: ffffffffffffff9c
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffef0f616cf R14: 00007fa580757300 R15: 0000000000022000
INFO: task syz-executor.3:9159 blocked for more than 147 seconds.
Not tainted 5.15.0-rc5-next-20211018-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:27504 pid: 9159 ppid: 7049 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665e9
RSP: 002b:00007fa580757188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 0000000000020601 RSI: 00000000200003c0 RDI: ffffffffffffff9c
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffef0f616cf R14: 00007fa580757300 R15: 0000000000022000
INFO: task syz-executor.3:9231 can't die for more than 147 seconds.
task:syz-executor.3 state:D stack:28472 pid: 9231 ppid: 7049 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4196d4
RSP: 002b:00007fa580734040 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004196d4
RDX: 0000000000000002 RSI: 00000000004beaa1 RDI: 00000000ffffff9c
RBP: 00000000004beaa1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000020000140 R15: 0000000000022000
INFO: task syz-executor.3:9231 blocked for more than 148 seconds.
Not tainted 5.15.0-rc5-next-20211018-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:28472 pid: 9231 ppid: 7049 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4196d4
RSP: 002b:00007fa580734040 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004196d4
RDX: 0000000000000002 RSI: 00000000004beaa1 RDI: 00000000ffffff9c
RBP: 00000000004beaa1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000020000140 R15: 0000000000022000
INFO: task syz-executor.3:9232 can't die for more than 148 seconds.
task:syz-executor.3 state:D stack:28472 pid: 9232 ppid: 7049 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4196d4
RSP: 002b:00007fa580713040 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056c0f0 RCX: 00000000004196d4
RDX: 0000000000000002 RSI: 00000000004beaa1 RDI: 00000000ffffff9c
RBP: 00000000004beaa1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000000 R14: 00000000200000c0 R15: 0000000000022000
INFO: task syz-executor.3:9232 blocked for more than 148 seconds.
Not tainted 5.15.0-rc5-next-20211018-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:28472 pid: 9232 ppid: 7049 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4196d4
RSP: 002b:00007fa580713040 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056c0f0 RCX: 00000000004196d4
RDX: 0000000000000002 RSI: 00000000004beaa1 RDI: 00000000ffffff9c
RBP: 00000000004beaa1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000000 R14: 00000000200000c0 R15: 0000000000022000
INFO: task syz-executor.4:9168 can't die for more than 149 seconds.
task:syz-executor.4 state:D stack:27504 pid: 9168 ppid: 7050 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665e9
RSP: 002b:00007f2c14c6d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 0000000000020601 RSI: 00000000200003c0 RDI: ffffffffffffff9c
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffef402811f R14: 00007f2c14c6d300 R15: 0000000000022000
INFO: task syz-executor.4:9171 can't die for more than 149 seconds.
task:syz-executor.4 state:D stack:27504 pid: 9171 ppid: 7050 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4196d4
RSP: 002b:00007f2c14c4a040 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004196d4
RDX: 0000000000000002 RSI: 00000000004beaa1 RDI: 00000000ffffff9c
RBP: 00000000004beaa1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000000 R14: 0000000020000140 R15: 0000000000022000
INFO: task syz-executor.4:9233 can't die for more than 149 seconds.
task:syz-executor.4 state:D stack:28472 pid: 9233 ppid: 7050 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4196d4
RSP: 002b:00007f2c14c29040 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056c0f0 RCX: 00000000004196d4
RDX: 0000000000000002 RSI: 00000000004beaa1 RDI: 00000000ffffff9c
RBP: 00000000004beaa1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000000 R14: 00000000200000c0 R15: 0000000000022000
INFO: task syz-executor.0:9178 can't die for more than 150 seconds.
task:syz-executor.0 state:D stack:28472 pid: 9178 ppid: 7047 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4196d4
RSP: 002b:00007f9eac87b040 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004196d4
RDX: 0000000000000002 RSI: 00000000004beaa1 RDI: 00000000ffffff9c
RBP: 00000000004beaa1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000000 R14: 00000000200000c0 R15: 0000000000022000
INFO: task syz-executor.2:9212 can't die for more than 150 seconds.
task:syz-executor.2 state:D stack:28472 pid: 9212 ppid: 7045 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4965 [inline]
__schedule+0x940/0x26f0 kernel/sched/core.c:6246
schedule+0xd2/0x260 kernel/sched/core.c:6319
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378
__mutex_lock_common kernel/locking/mutex.c:672 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732
misc_open+0x55/0x4a0 drivers/char/misc.c:107
chrdev_open+0x266/0x770 fs/char_dev.c:414
do_dentry_open+0x4c8/0x11d0 fs/open.c:822
do_open fs/namei.c:3428 [inline]
path_openat+0x1c9a/0x2740 fs/namei.c:3561
do_filp_open+0x1aa/0x400 fs/namei.c:3588
do_sys_openat2+0x16d/0x4d0 fs/open.c:1200
do_sys_open fs/open.c:1216 [inline]
__do_sys_openat fs/open.c:1232 [inline]
__se_sys_openat fs/open.c:1227 [inline]
__x64_sys_openat+0x13f/0x1f0 fs/open.c:1227
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4196d4
RSP: 002b:00007f047ac9e040 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004196d4
RDX: 0000000000000002 RSI: 00000000004beaa1 RDI: 00000000ffffff9c
RBP: 00000000004beaa1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002
R13: 0000000000000000 R14: 00000000200000c0 R15: 0000000000022000
Showing all locks held in the system:
5 locks held by kworker/0:0/5:
#0: ffff888013385138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888013385138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888013385138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
#0: ffff888013385138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:634 [inline]
#0: ffff888013385138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:661 [inline]
#0: ffff888013385138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2268
#1: ffffc90000ca7db0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2272
#2: ffff8881479d1220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#2: ffff8881479d1220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4330 drivers/usb/core/hub.c:5662
#3: ffff88807bddd220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#3: ffff88807bddd220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:944
#4: ffff8880694bd1a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#4: ffff8880694bd1a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:944
2 locks held by kworker/u4:1/10:
1 lock held by khungtaskd/27:
#0: ffffffff8bb81ae0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
1 lock held by in:imklog/6246:
#0: ffff88801d138d70 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
5 locks held by kworker/0:4/6881:
#0: ffff888013385138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888013385138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888013385138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
#0: ffff888013385138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:634 [inline]
#0: ffff888013385138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:661 [inline]
#0: ffff888013385138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2268
#1: ffffc9000464fdb0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2272
#2: ffff88801ced5220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#2: ffff88801ced5220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4330 drivers/usb/core/hub.c:5662
#3: ffff888015d72220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#3: ffff888015d72220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:944
#4: ffff8880799b81a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#4: ffff8880799b81a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:944
1 lock held by syz-executor.5/9148:
#0: ffffffff8c5d8208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 drivers/char/misc.c:107
1 lock held by syz-executor.5/9235:
#0: ffffffff8c5d8208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 drivers/char/misc.c:107
1 lock held by syz-executor.5/9236:
#0: ffffffff8c5d8208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 drivers/char/misc.c:107
2 locks held by syz-executor.1/9158:
#0: ffffffff8c5d8208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 drivers/char/misc.c:107
#1: ffffffff8ba51468 (system_transition_mutex){+.+.}-{3:3}, at: snapshot_open+0x3b/0x2a0 kernel/power/user.c:54
1 lock held by syz-executor.1/9225:
#0: ffffffff8c5d8208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 drivers/char/misc.c:107
1 lock held by syz-executor.1/9226:
#0: ffffffff8c5d8208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 drivers/char/misc.c:107
1 lock held by syz-executor.3/9159:
#0: ffffffff8c5d8208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 drivers/char/misc.c:107
1 lock held by syz-executor.3/9231:
#0: ffffffff8c5d8208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 drivers/char/misc.c:107
1 lock held by syz-executor.3/9232:
#0: ffffffff8c5d8208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 drivers/char/misc.c:107
1 lock held by syz-executor.4/9168:
#0: ffffffff8c5d8208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 drivers/char/misc.c:107
1 lock held by syz-executor.4/9171:
#0: ffffffff8c5d8208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 drivers/char/misc.c:107
1 lock held by syz-executor.4/9233:
#0: ffffffff8c5d8208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 drivers/char/misc.c:107
1 lock held by syz-executor.0/9178:
#0: ffffffff8c5d8208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 drivers/char/misc.c:107
1 lock held by syz-executor.2/9212:
#0: ffffffff8c5d8208 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x55/0x4a0 drivers/char/misc.c:107
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.0-rc5-next-20211018-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:254 [inline]
watchdog+0xcb7/0xed0 kernel/hung_task.c:339
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2956 Comm: systemd-journal Not tainted 5.15.0-rc5-next-20211018-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:lockdep_hardirqs_off+0x3b/0xd0 kernel/locking/lockdep.c:4384
Code: eb 95 b4 76 a9 00 00 f0 00 55 53 48 89 fb 74 49 8b 15 d9 be fb 06 85 d2 74 0e 65 8b 05 2a 9d b4 76 85 c0 75 4e 5b 5d c3 9c 58 c4 02 74 eb e8 fb d4 86 fa 85 c0 74 ed 8b 05 99 81 42 04 85 c0
RSP: 0018:ffffc9000b6af958 EFLAGS: 00000046
RAX: 0000000000000046 RBX: ffffffff81cbd09c RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000b6afa88 R08: 0000000000000000 R09: ffff888016f284d8
R10: ffffffff81cbcb64 R11: 0000000000000000 R12: 0000000000000200
R13: ffff888016f285f0 R14: 0000000000010000 R15: ffff888016f285e0
FS: 00007f45378af8c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4534db3000 CR3: 000000007be1f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
trace_hardirqs_off+0x13/0x1b0 kernel/trace/trace_preemptirq.c:76
seqcount_lockdep_reader_access include/linux/seqlock.h:102 [inline]
__follow_mount_rcu fs/namei.c:1455 [inline]
handle_mounts fs/namei.c:1486 [inline]
step_into+0x140c/0x1c80 fs/namei.c:1800
walk_component+0x171/0x6a0 fs/namei.c:1976
link_path_walk.part.0+0x757/0xd00 fs/namei.c:2297
link_path_walk fs/namei.c:2221 [inline]
path_lookupat+0xc8/0x860 fs/namei.c:2448
filename_lookup+0x1c6/0x590 fs/namei.c:2478
user_path_at_empty+0x42/0x60 fs/namei.c:2801
user_path_at include/linux/namei.h:57 [inline]
do_faccessat+0x127/0x850 fs/open.c:421
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f4536b6a9c7
Code: 83 c4 08 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d c8 d4 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 15 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 d4 2b 00 f7 d8 64 89 01 48
RSP: 002b:00007ffd652623a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000015
RAX: ffffffffffffffda RBX: 00007ffd652652c0 RCX: 00007f4536b6a9c7
RDX: 00007f45375dba00 RSI: 0000000000000000 RDI: 00005588c95379a3
RBP: 00007ffd652623e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ffd652652c0 R15: 00007ffd652628d0
----------------
Code disassembly (best guess):
0: eb 95 jmp 0xffffff97
2: b4 76 mov $0x76,%ah
4: a9 00 00 f0 00 test $0xf00000,%eax
9: 55 push %rbp
a: 53 push %rbx
b: 48 89 fb mov %rdi,%rbx
e: 74 49 je 0x59
10: 8b 15 d9 be fb 06 mov 0x6fbbed9(%rip),%edx # 0x6fbbeef
16: 85 d2 test %edx,%edx
18: 74 0e je 0x28
1a: 65 8b 05 2a 9d b4 76 mov %gs:0x76b49d2a(%rip),%eax # 0x76b49d4b
21: 85 c0 test %eax,%eax
23: 75 4e jne 0x73
25: 5b pop %rbx
26: 5d pop %rbp
27: c3 retq
28: 9c pushfq
29: 58 pop %rax
* 2a: f6 c4 02 test $0x2,%ah <-- trapping instruction
2d: 74 eb je 0x1a
2f: e8 fb d4 86 fa callq 0xfa86d52f
34: 85 c0 test %eax,%eax
36: 74 ed je 0x25
38: 8b 05 99 81 42 04 mov 0x4428199(%rip),%eax # 0x44281d7
3e: 85 c0 test %eax,%eax