syzbot

INFO: task kworker/1:0:22 blocked for more than 143 seconds.
      Not tainted 6.5.0-rc1-syzkaller-00259-g831fe284d827 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0     state:D stack:26912 pid:22    ppid:2      flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0xee1/0x59f0 kernel/sched/core.c:6710
 schedule+0xe7/0x1b0 kernel/sched/core.c:6786
 usb_kill_urb.part.0+0x1c6/0x250 drivers/usb/core/urb.c:728
 usb_kill_urb+0x83/0xa0 drivers/usb/core/urb.c:717
 usb_start_wait_urb+0x251/0x4c0 drivers/usb/core/message.c:64
 usb_internal_control_msg drivers/usb/core/message.c:102 [inline]
 usb_control_msg+0x327/0x4a0 drivers/usb/core/message.c:153
 usb_get_descriptor+0xc1/0x1b0 drivers/usb/core/message.c:793
 usb_get_device_descriptor+0x85/0xf0 drivers/usb/core/message.c:1072
 hub_port_init+0x92c/0x3850 drivers/usb/core/hub.c:4984
 hub_port_connect drivers/usb/core/hub.c:5351 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5566 [inline]
 port_event drivers/usb/core/hub.c:5726 [inline]
 hub_event+0x2e34/0x5230 drivers/usb/core/hub.c:5808
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597
 worker_thread+0x687/0x1110 kernel/workqueue.c:2748
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/13:
 #0: ffffffff8c9a5830 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x2c/0xe20 kernel/rcu/tasks.h:522
1 lock held by rcu_tasks_trace/14:
 #0: ffffffff8c9a5530 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x2c/0xe20 kernel/rcu/tasks.h:522
5 locks held by kworker/1:0/22:
 #0: ffff88814765ed38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline]
 #0: ffff88814765ed38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline]
 #0: ffff88814765ed38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline]
 #0: ffff88814765ed38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline]
 #0: ffff88814765ed38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:675 [inline]
 #0: ffff88814765ed38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:702 [inline]
 #0: ffff88814765ed38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2567
 #1: ffffc900001c7d80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2571
 #2: ffff88823bc34990 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:958 [inline]
 #2: ffff88823bc34990 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c8/0x5230 drivers/usb/core/hub.c:5754
 #3: ffff8881433c0508 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3162 [inline]
 #3: ffff8881433c0508 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5318 [inline]
 #3: ffff8881433c0508 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5566 [inline]
 #3: ffff8881433c0508 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5726 [inline]
 #3: ffff8881433c0508 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2a54/0x5230 drivers/usb/core/hub.c:5808
 #4: ffff888022aea768 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5319 [inline]
 #4: ffff888022aea768 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5566 [inline]
 #4: ffff888022aea768 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5726 [inline]
 #4: ffff888022aea768 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x2a7d/0x5230 drivers/usb/core/hub.c:5808
1 lock held by khungtaskd/28:
 #0: ffffffff8c9a6440 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6615
2 locks held by getty/4772:
 #0: ffff88814b474098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
 #1: ffffc900015b02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfcb/0x1480 drivers/tty/n_tty.c:2187

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.5.0-rc1-syzkaller-00259-g831fe284d827 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x277/0x380 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x2ac/0x310 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+0xf29/0x11b0 kernel/hung_task.c:379
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 59 Comm: kworker/u4:4 Not tainted 6.5.0-rc1-syzkaller-00259-g831fe284d827 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:switch_mm_irqs_off+0x62c/0xb90 arch/x86/mm/tlb.c:644
Code: ff 48 8b 4c 24 20 48 09 c1 48 89 c8 e9 bc 02 00 00 66 41 81 fd fe 0f 0f 87 27 03 00 00 41 8d 55 01 0f b7 d2 48 09 d0 0f 22 d8 <48> c7 c6 ff ff ff ff 31 ff e8 96 f6 ff ff 65 4c 89 3d fe bf c8 7e
RSP: 0018:ffffc90001587958 EFLAGS: 00000046
RAX: 0000000012863000 RBX: ffffffff8cb11700 RCX: 0000000012863000
RDX: ffff888018ec9dc0 RSI: ffffffff813aed66 RDI: 0000000000000007
RBP: 0000000000000002 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000020
R13: 0000000000000000 R14: 000000000000e117 R15: ffff888012868000
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a8b67e6780 CR3: 0000000012863000 CR4: 0000000000350ef0
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 use_temporary_mm arch/x86/kernel/alternative.c:1725 [inline]
 __text_poke+0x2c2/0x8a0 arch/x86/kernel/alternative.c:1836
 text_poke arch/x86/kernel/alternative.c:1900 [inline]
 text_poke_bp_batch+0x40e/0x780 arch/x86/kernel/alternative.c:2233
 text_poke_flush arch/x86/kernel/alternative.c:2402 [inline]
 text_poke_flush arch/x86/kernel/alternative.c:2399 [inline]
 text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:2409
 arch_jump_label_transform_apply+0x17/0x30 arch/x86/kernel/jump_label.c:146
 jump_label_update+0x32e/0x410 kernel/jump_label.c:829
 static_key_disable_cpuslocked+0x154/0x1b0 kernel/jump_label.c:235
 static_key_disable+0x1a/0x20 kernel/jump_label.c:243
 toggle_allocation_gate mm/kfence/core.c:836 [inline]
 toggle_allocation_gate+0x13f/0x250 mm/kfence/core.c:823
 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2597
 worker_thread+0x687/0x1110 kernel/workqueue.c:2748
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>