INFO: task syz-executor.0:8332 blocked for more than 143 seconds.
Not tainted 6.7.0-rc2-syzkaller-00206-gb46ae77f6787 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:26512 pid:8332 tgid:8332 ppid:5094 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0xedb/0x5af0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0xe9/0x270 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x5b9/0x9d0 kernel/locking/mutex.c:747
device_lock include/linux/device.h:992 [inline]
usbdev_release+0x87/0x4b0 drivers/usb/core/devio.c:1096
__fput+0x270/0xbb0 fs/file_table.c:394
__fput_sync+0x47/0x50 fs/file_table.c:475
__do_sys_close fs/open.c:1590 [inline]
__se_sys_close fs/open.c:1575 [inline]
__x64_sys_close+0x87/0xf0 fs/open.c:1575
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f782d27b9da
RSP: 002b:00007ffdaef38290 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f782d27b9da
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007f782d39d980 R08: 0000001b31860000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000293 R12: 000000000013db8f
R13: ffffffffffffffff R14: 00007f782ce00000 R15: 000000000013d84e
INFO: task syz-executor.3:8345 blocked for more than 143 seconds.
Not tainted 6.7.0-rc2-syzkaller-00206-gb46ae77f6787 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:28464 pid:8345 tgid:8344 ppid:5106 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0xedb/0x5af0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0xe9/0x270 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x5b9/0x9d0 kernel/locking/mutex.c:747
device_lock include/linux/device.h:992 [inline]
usbdev_open+0x1b5/0x900 drivers/usb/core/devio.c:1051
chrdev_open+0x26d/0x6e0 fs/char_dev.c:414
do_dentry_open+0x8d6/0x18c0 fs/open.c:948
do_open fs/namei.c:3622 [inline]
path_openat+0x1e5a/0x2c50 fs/namei.c:3779
do_filp_open+0x1de/0x430 fs/namei.c:3809
do_sys_openat2+0x176/0x1e0 fs/open.c:1440
do_sys_open fs/open.c:1455 [inline]
__do_sys_openat fs/open.c:1471 [inline]
__se_sys_openat fs/open.c:1466 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1466
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f0581a7b6e0
RSP: 002b:00007f0582765c00 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00000000001a3b42 RCX: 00007f0581a7b6e0
RDX: 00000000001a3b42 RSI: 00007f0582765ca0 RDI: 00000000ffffff9c
RBP: 00007f0582765ca0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 000000000000000b R14: 00007f0581b9bf80 R15: 00007ffdf31806d8
INFO: task syz-executor.3:8346 blocked for more than 143 seconds.
Not tainted 6.7.0-rc2-syzkaller-00206-gb46ae77f6787 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:27168 pid:8346 tgid:8344 ppid:5106 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0xedb/0x5af0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0xe9/0x270 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x5b9/0x9d0 kernel/locking/mutex.c:747
device_lock include/linux/device.h:992 [inline]
usbdev_open+0x1b5/0x900 drivers/usb/core/devio.c:1051
chrdev_open+0x26d/0x6e0 fs/char_dev.c:414
do_dentry_open+0x8d6/0x18c0 fs/open.c:948
do_open fs/namei.c:3622 [inline]
path_openat+0x1e5a/0x2c50 fs/namei.c:3779
do_filp_open+0x1de/0x430 fs/namei.c:3809
do_sys_openat2+0x176/0x1e0 fs/open.c:1440
do_sys_open fs/open.c:1455 [inline]
__do_sys_openat fs/open.c:1471 [inline]
__se_sys_openat fs/open.c:1466 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1466
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f0581a7b6e0
RSP: 002b:00007f0582744c00 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00000000001a3b42 RCX: 00007f0581a7b6e0
RDX: 00000000001a3b42 RSI: 00007f0582744ca0 RDI: 00000000ffffff9c
RBP: 00007f0582744ca0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 000000000000006e R14: 00007f0581b9c050 R15: 00007ffdf31806d8
Showing all locks held in the system:
2 locks held by kworker/u4:1/12:
1 lock held by khungtaskd/29:
#0: ffffffff8cfabce0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
#0: ffffffff8cfabce0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#0: ffffffff8cfabce0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6613
2 locks held by getty/4816:
#0: ffff8880268b10a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc6/0x1490 drivers/tty/n_tty.c:2201
5 locks held by kworker/1:5/5159:
#0: ffff888015adfd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x789/0x15d0 kernel/workqueue.c:2605
#1: ffffc900049a7d80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15d0 kernel/workqueue.c:2606
#2: ffff888142787190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#2: ffff888142787190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4e10 drivers/usb/core/hub.c:5791
#3: ffff888020a4b510 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3154 [inline]
#3: ffff888020a4b510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5360 [inline]
#3: ffff888020a4b510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5603 [inline]
#3: ffff888020a4b510 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5763 [inline]
#3: ffff888020a4b510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x27fe/0x4e10 drivers/usb/core/hub.c:5845
#4: ffff888142705e68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5361 [inline]
#4: ffff888142705e68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5603 [inline]
#4: ffff888142705e68 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5763 [inline]
#4: ffff888142705e68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x2827/0x4e10 drivers/usb/core/hub.c:5845
1 lock held by syz-executor.0/8332:
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: usbdev_release+0x87/0x4b0 drivers/usb/core/devio.c:1096
1 lock held by syz-executor.3/8345:
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: usbdev_open+0x1b5/0x900 drivers/usb/core/devio.c:1051
1 lock held by syz-executor.3/8346:
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: usbdev_open+0x1b5/0x900 drivers/usb/core/devio.c:1051
1 lock held by syz-executor.1/8437:
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: usbdev_open+0x1b5/0x900 drivers/usb/core/devio.c:1051
1 lock held by syz-executor.1/8458:
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: usbdev_open+0x1b5/0x900 drivers/usb/core/devio.c:1051
1 lock held by syz-executor.1/8459:
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: usbdev_open+0x1b5/0x900 drivers/usb/core/devio.c:1051
1 lock held by syz-executor.1/8460:
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: usbdev_open+0x1b5/0x900 drivers/usb/core/devio.c:1051
1 lock held by syz-executor.1/8461:
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: usbdev_open+0x1b5/0x900 drivers/usb/core/devio.c:1051
1 lock held by syz-executor.5/8464:
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: usbdev_open+0x1b5/0x900 drivers/usb/core/devio.c:1051
1 lock held by syz-executor.0/8521:
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: usbdev_open+0x1b5/0x900 drivers/usb/core/devio.c:1051
1 lock held by syz-executor.3/8527:
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: usbdev_open+0x1b5/0x900 drivers/usb/core/devio.c:1051
1 lock held by syz-executor.3/8664:
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: usbdev_open+0x1b5/0x900 drivers/usb/core/devio.c:1051
1 lock held by syz-executor.1/8682:
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: usbdev_open+0x1b5/0x900 drivers/usb/core/devio.c:1051
1 lock held by syz-executor.1/8683:
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: usbdev_open+0x1b5/0x900 drivers/usb/core/devio.c:1051
1 lock held by syz-executor.0/8680:
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#0: ffff888142787190 (&dev->mutex){....}-{3:3}, at: usbdev_open+0x1b5/0x900 drivers/usb/core/devio.c:1051
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc2-syzkaller-00206-gb46ae77f6787 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x277/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x299/0x300 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+0xf87/0x1210 kernel/hung_task.c:379
kthread+0x2c6/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 12 Comm: kworker/u4:1 Not tainted 6.7.0-rc2-syzkaller-00206-gb46ae77f6787 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:__raw_spin_lock_bh include/linux/spinlock_api_smp.h:127 [inline]
RIP: 0010:_raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178
Code: 8b 7c 24 08 be 01 02 00 00 e8 99 5a cc f6 48 8d 7b 18 45 31 c9 31 c9 ff 74 24 08 41 b8 01 00 00 00 31 d2 31 f6 e8 9d f8 e4 f6 <48> 89 df 58 5b e9 e3 5c e5 f6 0f 1f 00 f3 0f 1e fa 53 48 89 fb 9c
RSP: 0018:ffffc90000117b28 EFLAGS: 00000286
RAX: 0000000000000000 RBX: ffff88808a7e5540 RCX: ffffffff81672c0e
RDX: 0000000000000001 RSI: ffffffff8accbc60 RDI: ffffffff8b2f10c0
RBP: dffffc0000000000 R08: 0000000000000000 R09: fffffbfff23e35eb
R10: ffffffff91f1af5f R11: 0000000000000002 R12: ffffffff8a485b60
R13: ffff88808a728c80 R14: ffff8880214f6000 R15: ffff888039fadaa8
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c007dd1000 CR3: 000000002a734000 CR4: 0000000000350ef0
Call Trace:
spin_lock_bh include/linux/spinlock.h:356 [inline]
batadv_nc_purge_paths+0xd3/0x3c0 net/batman-adv/network-coding.c:442
batadv_nc_worker+0x97a/0x10e0 net/batman-adv/network-coding.c:720
process_one_work+0x886/0x15d0 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784
kthread+0x2c6/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242