BUG: sleeping function called from invalid context at kernel/workqueue.c:3028 in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 0, name: swapper/0 preempt_count: 101, expected: 0 RCU nest depth: 0, expected: 0 1 lock held by swapper/0/0: #0: ffffc90000007d70 ((&dum_hcd->timer)){+.-.}-{0:0}, at: lockdep_copy_map include/linux/lockdep.h:35 [inline] #0: ffffc90000007d70 ((&dum_hcd->timer)){+.-.}-{0:0}, at: call_timer_fn+0xd5/0x6b0 kernel/time/timer.c:1411 irq event stamp: 8068815 hardirqs last enabled at (8068814): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] hardirqs last enabled at (8068814): [] _raw_spin_unlock_irq+0x1f/0x40 kernel/locking/spinlock.c:202 hardirqs last disabled at (8068815): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (8068815): [] _raw_spin_lock_irqsave+0x4e/0x50 kernel/locking/spinlock.c:162 softirqs last enabled at (8068798): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last enabled at (8068798): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 softirqs last disabled at (8068811): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last disabled at (8068811): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 Preemption disabled at: [] schedule_preempt_disabled+0x19/0x20 kernel/sched/core.c:6429 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.16.0-rc6-next-20211222-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 __might_resched.cold+0x222/0x26b kernel/sched/core.c:9583 start_flush_work kernel/workqueue.c:3028 [inline] __flush_work+0x109/0xb10 kernel/workqueue.c:3092 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3180 hci_cmd_sync_cancel net/bluetooth/hci_sync.c:346 [inline] hci_cmd_sync_cancel+0xe1/0x170 net/bluetooth/hci_sync.c:338 btusb_tx_complete+0x34a/0x3e0 drivers/bluetooth/btusb.c:1402 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1656 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1726 dummy_timer+0x11f9/0x32b0 drivers/usb/gadget/udc/dummy_hcd.c:1987 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734 __run_timers kernel/time/timer.c:1715 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline] RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline] RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:111 [inline] RIP: 0010:acpi_idle_do_entry+0x1c6/0x250 drivers/acpi/processor_idle.c:551 Code: 89 de e8 5d f4 1e f8 84 db 75 ac e8 74 f0 1e f8 e8 2f 39 25 f8 eb 0c e8 68 f0 1e f8 0f 00 2d 81 7e b8 00 e8 5c f0 1e f8 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 d7 f2 1e f8 48 85 db RSP: 0018:ffffffff8b807d60 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffffffff8b8bc6c0 RSI: ffffffff89592704 RDI: 0000000000000000 RBP: ffff8880159d1864 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817e6058 R11: 0000000000000000 R12: 0000000000000001 R13: ffff8880159d1800 R14: ffff8880159d1864 R15: ffff888017aae804 acpi_idle_enter+0x361/0x500 drivers/acpi/processor_idle.c:687 cpuidle_enter_state+0x1b1/0xc80 drivers/cpuidle/cpuidle.c:237 cpuidle_enter+0x4a/0xa0 drivers/cpuidle/cpuidle.c:351 call_cpuidle kernel/sched/idle.c:158 [inline] cpuidle_idle_call kernel/sched/idle.c:239 [inline] do_idle+0x3e8/0x590 kernel/sched/idle.c:306 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:403 start_kernel+0x47a/0x49b init/main.c:1141 secondary_startup_64_no_verify+0xc3/0xcb BUG: sleeping function called from invalid context at kernel/workqueue.c:3028 in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 22730, name: syz-executor.1 preempt_count: 100, expected: 0 RCU nest depth: 0, expected: 0 1 lock held by syz-executor.1/22730: #0: ffffc90000007d70 ((&dum_hcd->timer)){+.-.}-{0:0}, at: lockdep_copy_map include/linux/lockdep.h:35 [inline] #0: ffffc90000007d70 ((&dum_hcd->timer)){+.-.}-{0:0}, at: call_timer_fn+0xd5/0x6b0 kernel/time/timer.c:1411 irq event stamp: 2327 hardirqs last enabled at (2326): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] hardirqs last enabled at (2326): [] _raw_spin_unlock_irq+0x1f/0x40 kernel/locking/spinlock.c:202 hardirqs last disabled at (2327): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (2327): [] _raw_spin_lock_irqsave+0x4e/0x50 kernel/locking/spinlock.c:162 softirqs last enabled at (2068): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last enabled at (2068): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 softirqs last disabled at (2319): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last disabled at (2319): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 Preemption disabled at: [] softirq_handle_begin kernel/softirq.c:396 [inline] [] __do_softirq+0xe1/0x9c2 kernel/softirq.c:534 CPU: 0 PID: 22730 Comm: syz-executor.1 Tainted: G W 5.16.0-rc6-next-20211222-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 __might_resched.cold+0x222/0x26b kernel/sched/core.c:9583 start_flush_work kernel/workqueue.c:3028 [inline] __flush_work+0x109/0xb10 kernel/workqueue.c:3092 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3180 hci_cmd_sync_cancel net/bluetooth/hci_sync.c:346 [inline] hci_cmd_sync_cancel+0xe1/0x170 net/bluetooth/hci_sync.c:338 btusb_tx_complete+0x34a/0x3e0 drivers/bluetooth/btusb.c:1402 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1656 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1726 dummy_timer+0x11f9/0x32b0 drivers/usb/gadget/udc/dummy_hcd.c:1987 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734 __run_timers kernel/time/timer.c:1715 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:__syscall_enter_from_user_work kernel/entry/common.c:87 [inline] RIP: 0010:syscall_enter_from_user_mode+0x2b/0x70 kernel/entry/common.c:108 Code: 54 49 89 f4 55 48 89 fd 48 8b 7c 24 10 e8 cd f5 ff ff eb 27 eb 2b e8 d4 24 28 f8 e8 0f 23 28 f8 fb 65 48 8b 04 25 00 70 02 00 <48> 8b 70 08 40 f6 c6 3f 75 19 4c 89 e0 5d 41 5c c3 eb 1b 0f 0b eb RSP: 0018:ffffc90003c6ff28 EFLAGS: 00000202 RAX: ffff88807e92ba80 RBX: 0000000000000000 RCX: 1ffffffff1b25b51 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003c6ff58 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817e6058 R11: 0000000000000000 R12: 0000000000000003 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 do_syscall_64+0x16/0xb0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fb4a7c81adb Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44 RSP: 002b:00007ffcae054d80 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 000000000000001b RCX: 00007fb4a7c81adb RDX: ffffffffffffffbc RSI: ffffffffffffffff RDI: 000000000000001a RBP: 00007fb4a7de3960 R08: 0000000000000000 R09: 00007fb4a7de6508 R10: 00007ffcae054e80 R11: 0000000000000293 R12: 00000000001963cf R13: 00007ffcae054e80 R14: 00007fb4a7de1f60 R15: 0000000000000bea BUG: sleeping function called from invalid context at kernel/workqueue.c:3028 in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 23193, name: syz-executor.5 preempt_count: 100, expected: 0 RCU nest depth: 0, expected: 0 1 lock held by syz-executor.5/23193: #0: ffffc9000116fcb8 ((&dum_hcd->timer)){+.-.}-{0:0}, at: lockdep_copy_map include/linux/lockdep.h:35 [inline] #0: ffffc9000116fcb8 ((&dum_hcd->timer)){+.-.}-{0:0}, at: call_timer_fn+0xd5/0x6b0 kernel/time/timer.c:1411 irq event stamp: 2371 hardirqs last enabled at (2370): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] hardirqs last enabled at (2370): [] _raw_spin_unlock_irq+0x1f/0x40 kernel/locking/spinlock.c:202 hardirqs last disabled at (2371): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (2371): [] _raw_spin_lock_irqsave+0x4e/0x50 kernel/locking/spinlock.c:162 softirqs last enabled at (2232): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last enabled at (2232): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 softirqs last disabled at (2367): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last disabled at (2367): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 Preemption disabled at: [] softirq_handle_begin kernel/softirq.c:396 [inline] [] __do_softirq+0xe1/0x9c2 kernel/softirq.c:534 CPU: 0 PID: 23193 Comm: syz-executor.5 Tainted: G W 5.16.0-rc6-next-20211222-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 __might_resched.cold+0x222/0x26b kernel/sched/core.c:9583 start_flush_work kernel/workqueue.c:3028 [inline] __flush_work+0x109/0xb10 kernel/workqueue.c:3092 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3180 hci_cmd_sync_cancel net/bluetooth/hci_sync.c:346 [inline] hci_cmd_sync_cancel+0xe1/0x170 net/bluetooth/hci_sync.c:338 btusb_tx_complete+0x34a/0x3e0 drivers/bluetooth/btusb.c:1402 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1656 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1726 dummy_timer+0x11f9/0x32b0 drivers/usb/gadget/udc/dummy_hcd.c:1987 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734 __run_timers kernel/time/timer.c:1715 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x45/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0033:0x7fe622e78d57 Code: 39 d1 73 14 0f 1f 80 00 00 00 00 48 8b 50 f8 48 83 e8 08 48 39 ca 77 f3 48 39 c3 73 3e 48 89 13 48 8b 50 f8 48 89 38 49 8b 0e <48> 8b 3e 48 83 c3 08 48 83 c6 08 eb bc 48 39 d1 72 9e 48 39 d0 73 RSP: 002b:00007ffdf75d0870 EFLAGS: 00000283 RAX: 00007fe622a49350 RBX: 00007fe622a49320 RCX: ffffffff8134f920 RDX: ffffffff8134f920 RSI: 00007fe622a49328 RDI: ffffffff8134f920 RBP: 00007fe622a492f8 R08: 00007fe622a49388 R09: 00000000b2d63c23 R10: 00007ffdf75d0bc0 R11: 0000000000000246 R12: 00007fe622a492f0 R13: 00007fe622a49320 R14: 00007fe622a492e8 R15: 000000000000000e BUG: sleeping function called from invalid context at kernel/workqueue.c:3028 in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 0, name: swapper/0 preempt_count: 101, expected: 0 RCU nest depth: 0, expected: 0 1 lock held by swapper/0/0: #0: ffffc90000007d70 ((&dum_hcd->timer)){+.-.}-{0:0}, at: lockdep_copy_map include/linux/lockdep.h:35 [inline] #0: ffffc90000007d70 ((&dum_hcd->timer)){+.-.}-{0:0}, at: call_timer_fn+0xd5/0x6b0 kernel/time/timer.c:1411 irq event stamp: 8109689 hardirqs last enabled at (8109688): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] hardirqs last enabled at (8109688): [] _raw_spin_unlock_irq+0x1f/0x40 kernel/locking/spinlock.c:202 hardirqs last disabled at (8109689): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (8109689): [] _raw_spin_lock_irqsave+0x4e/0x50 kernel/locking/spinlock.c:162 softirqs last enabled at (8109564): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last enabled at (8109564): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 softirqs last disabled at (8109685): [] invoke_softirq kernel/softirq.c:432 [inline] softirqs last disabled at (8109685): [] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 Preemption disabled at: [] schedule_preempt_disabled+0x19/0x20 kernel/sched/core.c:6429 CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 5.16.0-rc6-next-20211222-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 __might_resched.cold+0x222/0x26b kernel/sched/core.c:9583 start_flush_work kernel/workqueue.c:3028 [inline] __flush_work+0x109/0xb10 kernel/workqueue.c:3092 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3180 hci_cmd_sync_cancel net/bluetooth/hci_sync.c:346 [inline] hci_cmd_sync_cancel+0xe1/0x170 net/bluetooth/hci_sync.c:338 btusb_tx_complete+0x34a/0x3e0 drivers/bluetooth/btusb.c:1402 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1656 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1726 dummy_timer+0x11f9/0x32b0 drivers/usb/gadget/udc/dummy_hcd.c:1987 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734 __run_timers kernel/time/timer.c:1715 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:29 [inline] RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:70 [inline] RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:130 [inline] RIP: 0010:acpi_safe_halt drivers/acpi/processor_idle.c:111 [inline] RIP: 0010:acpi_idle_do_entry+0x1c6/0x250 drivers/acpi/processor_idle.c:551 Code: 89 de e8 5d f4 1e f8 84 db 75 ac e8 74 f0 1e f8 e8 2f 39 25 f8 eb 0c e8 68 f0 1e f8 0f 00 2d 81 7e b8 00 e8 5c f0 1e f8 fb f4 <9c> 5b 81 e3 00 02 00 00 fa 31 ff 48 89 de e8 d7 f2 1e f8 48 85 db RSP: 0018:ffffffff8b807d60 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffffffff8b8bc6c0 RSI: ffffffff89592704 RDI: 0000000000000000 RBP: ffff8880159d1864 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff817e6058 R11: 0000000000000000 R12: 0000000000000001 R13: ffff8880159d1800 R14: ffff8880159d1864 R15: ffff888017aae804 acpi_idle_enter+0x361/0x500 drivers/acpi/processor_idle.c:687 cpuidle_enter_state+0x1b1/0xc80 drivers/cpuidle/cpuidle.c:237 cpuidle_enter+0x4a/0xa0 drivers/cpuidle/cpuidle.c:351 call_cpuidle kernel/sched/idle.c:158 [inline] cpuidle_idle_call kernel/sched/idle.c:239 [inline] do_idle+0x3e8/0x590 kernel/sched/idle.c:306 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:403 start_kernel+0x47a/0x49b init/main.c:1141 secondary_startup_64_no_verify+0xc3/0xcb ---------------- Code disassembly (best guess): 0: 89 de mov %ebx,%esi 2: e8 5d f4 1e f8 callq 0xf81ef464 7: 84 db test %bl,%bl 9: 75 ac jne 0xffffffb7 b: e8 74 f0 1e f8 callq 0xf81ef084 10: e8 2f 39 25 f8 callq 0xf8253944 15: eb 0c jmp 0x23 17: e8 68 f0 1e f8 callq 0xf81ef084 1c: 0f 00 2d 81 7e b8 00 verw 0xb87e81(%rip) # 0xb87ea4 23: e8 5c f0 1e f8 callq 0xf81ef084 28: fb sti 29: f4 hlt * 2a: 9c pushfq <-- trapping instruction 2b: 5b pop %rbx 2c: 81 e3 00 02 00 00 and $0x200,%ebx 32: fa cli 33: 31 ff xor %edi,%edi 35: 48 89 de mov %rbx,%rsi 38: e8 d7 f2 1e f8 callq 0xf81ef314 3d: 48 85 db test %rbx,%rbx