INFO: task syz.4.2515:19408 blocked for more than 143 seconds.
Not tainted 6.11.0-rc3-syzkaller-00036-g9d5906799f7d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.2515 state:D stack:26168 pid:19408 tgid:19381 ppid:16663 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0x1800/0x4a60 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6621
jfs_flush_journal+0x72c/0xec0 fs/jfs/jfs_logmgr.c:1564
jfs_sync_fs+0x80/0xa0 fs/jfs/super.c:684
sync_filesystem+0x1ca/0x230 fs/sync.c:66
jfs_remount+0x136/0x6b0 fs/jfs/super.c:432
reconfigure_super+0x447/0x880 fs/super.c:1083
vfs_cmd_reconfigure fs/fsopen.c:263 [inline]
vfs_fsconfig_locked fs/fsopen.c:292 [inline]
__do_sys_fsconfig fs/fsopen.c:473 [inline]
__se_sys_fsconfig+0xb6e/0xf80 fs/fsopen.c:345
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9c3f5799b9
RSP: 002b:00007f9c40305038 EFLAGS: 00000246 ORIG_RAX: 00000000000001af
RAX: ffffffffffffffda RBX: 00007f9c3f716058 RCX: 00007f9c3f5799b9
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000005
RBP: 00007f9c3f5e78d8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f9c3f716058 R15: 00007fffdc6450e8
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e9382e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
#0: ffffffff8e9382e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#0: ffffffff8e9382e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6626
4 locks held by kworker/u8:4/62:
2 locks held by getty/4981:
#0: ffff88802f8780a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ac/0x1e00 drivers/tty/n_tty.c:2211
3 locks held by kworker/0:6/5286:
#0: ffff8880b923ea18 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0xb0/0x140 kernel/sched/core.c:568
#1: ffff8880b9228948 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x441/0x770 kernel/sched/psi.c:989
#2: ffffffff8e938340 (rcu_read_lock_bh){....}-{1:2}, at: local_bh_disable include/linux/bottom_half.h:20 [inline]
#2: ffffffff8e938340 (rcu_read_lock_bh){....}-{1:2}, at: rcu_read_lock_bh include/linux/rcupdate.h:890 [inline]
#2: ffffffff8e938340 (rcu_read_lock_bh){....}-{1:2}, at: keep_key_fresh drivers/net/wireguard/send.c:129 [inline]
#2: ffffffff8e938340 (rcu_read_lock_bh){....}-{1:2}, at: wg_packet_create_data_done drivers/net/wireguard/send.c:259 [inline]
#2: ffffffff8e938340 (rcu_read_lock_bh){....}-{1:2}, at: wg_packet_tx_worker+0x25f/0x810 drivers/net/wireguard/send.c:276
3 locks held by kworker/u8:15/5978:
2 locks held by syz.4.2515/19408:
#0: ffff88801f71e870 (&fc->uapi_mutex){+.+.}-{3:3}
, at: __do_sys_fsconfig fs/fsopen.c:471 [inline]
, at: __se_sys_fsconfig+0x9a7/0xf80 fs/fsopen.c:345
#1: ffff88805c3400e0 (&type->s_umount_key#100
){++++}-{3:3}, at: vfs_cmd_reconfigure fs/fsopen.c:262 [inline]
){++++}-{3:3}, at: vfs_fsconfig_locked fs/fsopen.c:292 [inline]
){++++}-{3:3}, at: __do_sys_fsconfig fs/fsopen.c:473 [inline]
){++++}-{3:3}, at: __se_sys_fsconfig+0xb64/0xf80 fs/fsopen.c:345
1 lock held by syz-executor/20293:
#0: ffffffff8e93d6b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:328 [inline]
#0: ffffffff8e93d6b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:958
2 locks held by syz.5.2813/20649:
#0: ffff888047de6e08 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:799 [inline]
#0: ffff888047de6e08 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release net/socket.c:658 [inline]
#0: ffff888047de6e08 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: sock_close+0x90/0x240 net/socket.c:1421
#1: ffffffff8e93d6b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:296 [inline]
#1: ffffffff8e93d6b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:958
2 locks held by syz-executor/20672:
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc3-syzkaller-00036-g9d5906799f7d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
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:223 [inline]
watchdog+0xfee/0x1030 kernel/hung_task.c:379
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/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: 5286 Comm: kworker/0:6 Not tainted 6.11.0-rc3-syzkaller-00036-g9d5906799f7d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Workqueue: usb_hub_wq hub_event
RIP: 0010:__trace_hardirqs_on_caller kernel/locking/lockdep.c:4298 [inline]
RIP: 0010:lockdep_hardirqs_on_prepare+0x317/0x780 kernel/locking/lockdep.c:4358
Code: 00 00 fc ff df eb ac 48 c7 c7 80 4c 80 8e 4c 89 ee e8 cd 03 7b 03 48 ba 00 00 00 00 00 fc ff df e9 3d ff ff ff 48 8b 44 24 10 <48> 8d 98 c0 0a 00 00 48 89 d8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85
RSP: 0018:ffffc900030fee20 EFLAGS: 00000046
RAX: ffff888029915a00 RBX: ffff888029916648 RCX: ffffffff817030ca
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff9372f848
RBP: ffffc900030feec8 R08: ffffffff9372f84f R09: 1ffffffff26e5f09
R10: dffffc0000000000 R11: fffffbfff26e5f0a R12: ffff888029916668
R13: 0000000000000009 R14: ffff8880299164d8 R15: 1ffff11005322c9b
FS: 0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f149f245000 CR3: 000000001205c000 CR4: 0000000000350ef0
Call Trace:
trace_hardirqs_on+0x28/0x40 kernel/trace/trace_preemptirq.c:61
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
_raw_spin_unlock_irqrestore+0x8f/0x140 kernel/locking/spinlock.c:194
debug_object_active_state+0x239/0x360 lib/debugobjects.c:946
debug_rcu_head_queue kernel/rcu/rcu.h:228 [inline]
__call_rcu_common kernel/rcu/tree.c:3091 [inline]
call_rcu+0xb5/0xa70 kernel/rcu/tree.c:3210
kernfs_put+0x1dc/0x370 fs/kernfs/dir.c:578
kernfs_remove_by_name_ns+0xe4/0x160 fs/kernfs/dir.c:1695
kernfs_remove_by_name include/linux/kernfs.h:625 [inline]
remove_files fs/sysfs/group.c:28 [inline]
sysfs_remove_group+0xfe/0x2c0 fs/sysfs/group.c:319
sysfs_remove_groups+0x54/0xb0 fs/sysfs/group.c:343
device_remove_groups drivers/base/core.c:2836 [inline]
device_remove_attrs+0x23a/0x290 drivers/base/core.c:2972
device_del+0x572/0x9b0 drivers/base/core.c:3870
spi_unregister_controller+0x215/0x320 drivers/spi/spi.c:3479
msi2500_disconnect+0xc8/0x130 drivers/media/usb/msi2500/msi2500.c:577
usb_unbind_interface+0x260/0x940 drivers/usb/core/driver.c:461
device_remove drivers/base/dd.c:568 [inline]
__device_release_driver drivers/base/dd.c:1272 [inline]
device_release_driver_internal+0x505/0x7c0 drivers/base/dd.c:1295
bus_remove_device+0x34f/0x420 drivers/base/bus.c:574
device_del+0x57a/0x9b0 drivers/base/core.c:3871
usb_disable_device+0x3bf/0x850 drivers/usb/core/message.c:1418
usb_disconnect+0x340/0x950 drivers/usb/core/hub.c:2304
hub_port_connect drivers/usb/core/hub.c:5361 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
port_event drivers/usb/core/hub.c:5821 [inline]
hub_event+0x1eb9/0x5150 drivers/usb/core/hub.c:5903
process_one_work kernel/workqueue.c:3231 [inline]
process_scheduled_works+0xa2e/0x1830 kernel/workqueue.c:3312
worker_thread+0x86d/0xd40 kernel/workqueue.c:3390
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244