------------[ cut here ]------------ WARNING: CPU: 1 PID: 5282 at kernel/sched/fair.c:5337 place_entity+0x463/0x520 kernel/sched/fair.c:5337 Modules linked in: CPU: 1 UID: 0 PID: 5282 Comm: kworker/1:4 Not tainted 6.11.0-rc4-next-20240822-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: usb_hub_wq hub_event RIP: 0010:place_entity+0x463/0x520 kernel/sched/fair.c:5337 Code: 27 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 48 8b 3c 24 4c 89 fe e8 77 14 00 00 48 89 04 24 e9 e0 fd ff ff 90 <0f> 0b 90 41 bd 01 00 00 00 e9 22 ff ff ff 89 d9 80 e1 07 38 c1 0f RSP: 0018:ffffc90000a18890 EFLAGS: 00010046 RAX: ffffffffe4806400 RBX: fffffffffff92019 RCX: 0000000000100000 RDX: 0000000000000400 RSI: ffff8880226b1e80 RDI: ffff8880226b1f00 RBP: dffffc0000000000 R08: ffff88802a53c147 R09: 1ffff110054a7828 R10: dffffc0000000000 R11: ffffed10054a7829 R12: 000000000a9bb606 R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880226b1e80 FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020037000 CR3: 000000001cfba000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: enqueue_entity+0x271/0x1920 kernel/sched/fair.c:5409 enqueue_task_fair+0x206/0xe30 kernel/sched/fair.c:6985 enqueue_task+0x1a5/0x300 kernel/sched/core.c:2014 activate_task kernel/sched/core.c:2056 [inline] ttwu_do_activate+0x1d1/0x7e0 kernel/sched/core.c:3665 ttwu_queue kernel/sched/core.c:3940 [inline] try_to_wake_up+0x8bc/0x1480 kernel/sched/core.c:4266 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1794 expire_timers kernel/time/timer.c:1845 [inline] __run_timers kernel/time/timer.c:2419 [inline] __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2430 run_timer_base kernel/time/timer.c:2439 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2449 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1037 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:console_flush_all+0x9f7/0xf50 kernel/printk/printk.c:3083 Code: 1f 00 90 0f 0b 90 e9 f3 f9 ff ff e8 c3 ef 1f 00 e8 8e 2f 4b 0a 4d 85 f6 74 c0 e8 b4 ef 1f 00 fb 49 bd 00 00 00 00 00 fc ff df <43> 80 3c 2f 00 48 8b 5c 24 30 74 08 48 89 df e8 95 76 88 00 4c 8b RSP: 0018:ffffc900042e6fc0 EFLAGS: 00000283 RAX: ffffffff817410ac RBX: 0000000000000000 RCX: 0000000000100000 RDX: ffffc9001494b000 RSI: 000000000000f20f RDI: 000000000000f210 RBP: ffffc900042e7150 R08: ffffffff81741053 R09: 1ffffffff26f6300 R10: dffffc0000000000 R11: fffffbfff26f6301 R12: ffffffff8f171840 R13: dffffc0000000000 R14: 0000000000000200 R15: 1ffffffff1e2e313 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3153 vprintk_emit+0x87d/0xa10 kernel/printk/printk.c:2399 dev_vprintk_emit+0x2ae/0x330 drivers/base/core.c:4921 dev_printk_emit+0xdd/0x120 drivers/base/core.c:4932 _dev_info+0x122/0x170 drivers/base/core.c:4990 announce_device drivers/usb/core/hub.c:2369 [inline] usb_new_device+0x5e6/0x19a0 drivers/usb/core/hub.c:2632 hub_port_connect drivers/usb/core/hub.c:5521 [inline] hub_port_connect_change drivers/usb/core/hub.c:5661 [inline] port_event drivers/usb/core/hub.c:5821 [inline] hub_event+0x2d6d/0x5150 drivers/usb/core/hub.c:5903 process_one_work kernel/workqueue.c:3232 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3313 worker_thread+0x86d/0xd10 kernel/workqueue.c:3390 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 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 90 nop 1: 0f 0b ud2 3: 90 nop 4: e9 f3 f9 ff ff jmp 0xfffff9fc 9: e8 c3 ef 1f 00 call 0x1fefd1 e: e8 8e 2f 4b 0a call 0xa4b2fa1 13: 4d 85 f6 test %r14,%r14 16: 74 c0 je 0xffffffd8 18: e8 b4 ef 1f 00 call 0x1fefd1 1d: fb sti 1e: 49 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%r13 25: fc ff df * 28: 43 80 3c 2f 00 cmpb $0x0,(%r15,%r13,1) <-- trapping instruction 2d: 48 8b 5c 24 30 mov 0x30(%rsp),%rbx 32: 74 08 je 0x3c 34: 48 89 df mov %rbx,%rdi 37: e8 95 76 88 00 call 0x8876d1 3c: 4c rex.WR 3d: 8b .byte 0x8b