do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7efe8d8260f2 ================================ WARNING: inconsistent lock state 5.19.0-syzkaller-13666-gffcf9c5700e4 #0 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. dhcpcd-run-hook/5902 [HC0[0]:SC1[1]:HE0:SE0] takes: ffffffff87b854d8 (vmap_area_lock){+.?.}-{2:2}, at: spin_lock include/linux/spinlock.h:349 [inline] ffffffff87b854d8 (vmap_area_lock){+.?.}-{2:2}, at: find_vmap_area+0x1c/0x130 mm/vmalloc.c:1836 {SOFTIRQ-ON-W} state was registered at: lock_acquire kernel/locking/lockdep.c:5666 [inline] lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5631 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:349 [inline] alloc_vmap_area+0xa0b/0x1d50 mm/vmalloc.c:1617 __get_vm_area_node+0x142/0x3f0 mm/vmalloc.c:2484 get_vm_area_caller+0x43/0x50 mm/vmalloc.c:2537 __ioremap_caller.constprop.0+0x292/0x600 arch/x86/mm/ioremap.c:280 acpi_os_ioremap include/acpi/acpi_io.h:13 [inline] acpi_map drivers/acpi/osl.c:296 [inline] acpi_os_map_iomem+0x463/0x550 drivers/acpi/osl.c:355 acpi_tb_acquire_table+0xd8/0x209 drivers/acpi/acpica/tbdata.c:142 acpi_tb_validate_table drivers/acpi/acpica/tbdata.c:317 [inline] acpi_tb_validate_table+0x50/0x8c drivers/acpi/acpica/tbdata.c:308 acpi_tb_verify_temp_table+0x84/0x674 drivers/acpi/acpica/tbdata.c:504 acpi_reallocate_root_table+0x374/0x3e0 drivers/acpi/acpica/tbxface.c:180 acpi_early_init+0x13a/0x438 drivers/acpi/bus.c:1214 start_kernel+0x3cf/0x48f init/main.c:1099 secondary_startup_64_no_verify+0xce/0xdb irq event stamp: 14187 hardirqs last enabled at (14186): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] hardirqs last enabled at (14186): [] _raw_spin_unlock_irq+0x1f/0x40 kernel/locking/spinlock.c:202 hardirqs last disabled at (14187): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (14187): [] _raw_spin_lock_irqsave+0x4e/0x50 kernel/locking/spinlock.c:162 softirqs last enabled at (13674): [] restore_fpregs_from_user arch/x86/kernel/fpu/signal.c:326 [inline] softirqs last enabled at (13674): [] __fpu_restore_sig+0x5e8/0x1320 arch/x86/kernel/fpu/signal.c:361 softirqs last disabled at (14183): [] invoke_softirq kernel/softirq.c:445 [inline] softirqs last disabled at (14183): [] __irq_exit_rcu+0x113/0x170 kernel/softirq.c:650 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(vmap_area_lock); lock(vmap_area_lock); *** DEADLOCK *** 8 locks held by dhcpcd-run-hook/5902: #0: ffffffff87b374d0 (dup_mmap_sem){.+.+}-{0:0}, at: dup_mmap kernel/fork.c:589 [inline] #0: ffffffff87b374d0 (dup_mmap_sem){.+.+}-{0:0}, at: dup_mm+0x100/0x1230 kernel/fork.c:1524 #1: ffff88810e4b0828 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_write_lock_killable include/linux/mmap_lock.h:87 [inline] #1: ffff88810e4b0828 (&mm->mmap_lock#2){++++}-{3:3}, at: dup_mmap kernel/fork.c:590 [inline] #1: ffff88810e4b0828 (&mm->mmap_lock#2){++++}-{3:3}, at: dup_mm+0x122/0x1230 kernel/fork.c:1524 #2: ffff888111f67828 (&mm->mmap_lock/1){+.+.}-{3:3}, at: mmap_write_lock_nested include/linux/mmap_lock.h:78 [inline] #2: ffff888111f67828 (&mm->mmap_lock/1){+.+.}-{3:3}, at: dup_mmap kernel/fork.c:599 [inline] #2: ffff888111f67828 (&mm->mmap_lock/1){+.+.}-{3:3}, at: dup_mm+0x174/0x1230 kernel/fork.c:1524 #3: ffffc90000178d70 ((&dum_hcd->timer)){+.-.}-{0:0}, at: lockdep_copy_map include/linux/lockdep.h:31 [inline] #3: ffffc90000178d70 ((&dum_hcd->timer)){+.-.}-{0:0}, at: call_timer_fn+0xd5/0x6b0 kernel/time/timer.c:1464 #4: ffff888109314230 (&dev->event_lock){-.-.}-{2:2}, at: input_event drivers/input/input.c:456 [inline] #4: ffff888109314230 (&dev->event_lock){-.-.}-{2:2}, at: input_event+0x6c/0xa0 drivers/input/input.c:449 #5: ffffffff87a94f60 (rcu_read_lock){....}-{1:2}, at: input_pass_values.part.0+0x0/0x710 drivers/input/input.c:884 #6: ffffffff87eb92f8 (kbd_event_lock){..-.}-{2:2}, at: spin_lock include/linux/spinlock.h:349 [inline] #6: ffffffff87eb92f8 (kbd_event_lock){..-.}-{2:2}, at: kbd_event+0x86/0x1790 drivers/tty/vt/keyboard.c:1537 #7: ffffffff87a94f60 (rcu_read_lock){....}-{1:2}, at: show_state_filter+0x0/0x300 kernel/sched/core.c:8832 stack backtrace: CPU: 1 PID: 5902 Comm: dhcpcd-run-hook Not tainted 5.19.0-syzkaller-13666-gffcf9c5700e4 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_usage_bug kernel/locking/lockdep.c:3961 [inline] valid_state kernel/locking/lockdep.c:3973 [inline] mark_lock_irq kernel/locking/lockdep.c:4176 [inline] mark_lock.part.0.cold+0x18/0xd8 kernel/locking/lockdep.c:4632 mark_lock kernel/locking/lockdep.c:4596 [inline] mark_usage kernel/locking/lockdep.c:4527 [inline] __lock_acquire+0x11d9/0x56d0 kernel/locking/lockdep.c:5007 lock_acquire kernel/locking/lockdep.c:5666 [inline] lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5631 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:349 [inline] find_vmap_area+0x1c/0x130 mm/vmalloc.c:1836 check_heap_object mm/usercopy.c:176 [inline] __check_object_size mm/usercopy.c:250 [inline] __check_object_size+0x1f8/0x700 mm/usercopy.c:212 check_object_size include/linux/thread_info.h:199 [inline] __copy_from_user_inatomic include/linux/uaccess.h:62 [inline] copy_from_user_nmi arch/x86/lib/usercopy.c:47 [inline] copy_from_user_nmi+0xcb/0x130 arch/x86/lib/usercopy.c:31 copy_code arch/x86/kernel/dumpstack.c:91 [inline] show_opcodes+0x59/0xb0 arch/x86/kernel/dumpstack.c:121 show_iret_regs+0xd/0x33 arch/x86/kernel/dumpstack.c:149 __show_regs+0x1e/0x60 arch/x86/kernel/process_64.c:74 show_trace_log_lvl+0x25b/0x2ba arch/x86/kernel/dumpstack.c:292 sched_show_task kernel/sched/core.c:8870 [inline] sched_show_task+0x44c/0x5c0 kernel/sched/core.c:8844 show_state_filter+0x13e/0x300 kernel/sched/core.c:8915 k_spec drivers/tty/vt/keyboard.c:667 [inline] k_spec+0xe1/0x130 drivers/tty/vt/keyboard.c:656 kbd_keycode drivers/tty/vt/keyboard.c:1524 [inline] kbd_event+0xcdd/0x1790 drivers/tty/vt/keyboard.c:1543 input_to_handler+0x3b9/0x4c0 drivers/input/input.c:129 input_pass_values.part.0+0x230/0x710 drivers/input/input.c:156 input_pass_values drivers/input/input.c:426 [inline] input_handle_event+0x67e/0x1470 drivers/input/input.c:426 input_event drivers/input/input.c:457 [inline] input_event+0x7f/0xa0 drivers/input/input.c:449 hidinput_hid_event+0x79d/0x2010 drivers/hid/hid-input.c:1633 hid_process_event+0x491/0x570 drivers/hid/hid-core.c:1527 hid_input_array_field+0x30c/0x660 drivers/hid/hid-core.c:1631 hid_process_report drivers/hid/hid-core.c:1681 [inline] hid_report_raw_event+0xa8a/0x1280 drivers/hid/hid-core.c:1998 hid_input_report+0x360/0x4c0 drivers/hid/hid-core.c:2065 hid_irq_in+0x50e/0x690 drivers/hid/usbhid/hid-core.c:284 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1671 usb_hcd_giveback_urb+0x380/0x430 drivers/usb/core/hcd.c:1754 dummy_timer+0x11ff/0x32c0 drivers/usb/gadget/udc/dummy_hcd.c:1988 call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474 expire_timers kernel/time/timer.c:1519 [inline] __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790 __run_timers kernel/time/timer.c:1768 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803 __do_softirq+0x1c0/0x9a9 kernel/softirq.c:571 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x113/0x170 kernel/softirq.c:650 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:lock_release+0x3f1/0x780 kernel/locking/lockdep.c:5674 Code: 7e 83 f8 01 0f 85 cb 01 00 00 9c 58 f6 c4 02 0f 85 b6 01 00 00 48 f7 04 24 00 02 00 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c5 48 c7 45 00 00 00 00 00 c7 45 08 00 00 00 00 48 8b 84 24 RSP: 0018:ffffc9000f14f890 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: 21203c6f3dc44357 RCX: ffffc9000f14f8e0 RDX: 1ffff110224e64cd RSI: 0000000000000000 RDI: 0000000000000000 RBP: 1ffff92001e29f14 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000003 R13: 0000000000000004 R14: ffff888112732670 R15: ffff888112731c80 up_write+0x26/0x470 kernel/locking/rwsem.c:1604 unlock_anon_vma_root mm/rmap.c:257 [inline] anon_vma_clone+0x420/0x5f0 mm/rmap.c:312 anon_vma_fork+0x82/0x630 mm/rmap.c:349 dup_mmap kernel/fork.c:658 [inline] dup_mm+0x8f0/0x1230 kernel/fork.c:1524 copy_mm kernel/fork.c:1576 [inline] copy_process+0x3bb2/0x6de0 kernel/fork.c:2256 kernel_clone+0xe7/0xab0 kernel/fork.c:2673 __do_sys_clone+0xba/0x100 kernel/fork.c:2807 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7efe8d8260f2 Code: ed 0f 85 11 01 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 a2 00 00 00 41 89 c5 85 c0 0f 85 af 00 00 RSP: 002b:00007ffc15382c60 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 000055cc1974f910 RCX: 00007efe8d8260f2 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00007efe8d6bcad0 R11: 0000000000000246 R12: 0000000000000000 R13: 000055cc197529b8 R14: 0000000000000000 R15: 0000000000000000 Code: ed 0f 85 11 01 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 a2 00 00 00 41 89 c5 85 c0 0f 85 af 00 00 RSP: 002b:00007ffc15382c60 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 000055cc1974f910 RCX: 00007efe8d8260f2 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00007efe8d6bcad0 R11: 0000000000000246 R12: 0000000000000000 R13: 000055cc197529b8 R14: 0000000000000000 R15: 0000000000000000 task:syz-executor.1 state:D stack:28680 pid: 5919 ppid: 1300 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5182 [inline] __schedule+0x93f/0x26f0 kernel/sched/core.c:6494 schedule+0xda/0x1b0 kernel/sched/core.c:6570 synchronize_rcu_expedited+0x39a/0x670 kernel/rcu/tree_exp.h:955 synchronize_rcu+0x22b/0x260 kernel/rcu/tree.c:3519 evdev_detach_client drivers/input/evdev.c:386 [inline] evdev_release+0x23f/0x410 drivers/input/evdev.c:449 __fput+0x277/0x9d0 fs/file_table.c:320 task_work_run+0xdd/0x1a0 kernel/task_work.c:177 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:169 [inline] exit_to_user_mode_prepare+0x1f7/0x200 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:294 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fa3e8a1febb RSP: 002b:00007ffe777963e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007fa3e8a1febb RDX: 00007fa3e8b85818 RSI: ffffffffffffffff RDI: 0000000000000003 RBP: 00007fa3e8b81980 R08: 0000000000000000 R09: 00007fa3e8b85820 R10: 00007ffe777964e0 R11: 0000000000000293 R12: 00000000000362cc R13: 00007ffe777964e0 R14: 00007fa3e8b7ff80 R15: 0000000000000032 task:kworker/0:8 state:I stack:30176 pid: 5931 ppid: 2 flags:0x00004000 Workqueue: 0x0 (events) Call Trace: context_switch kernel/sched/core.c:5182 [inline] __schedule+0x93f/0x26f0 kernel/sched/core.c:6494 schedule+0xda/0x1b0 kernel/sched/core.c:6570 worker_thread+0x15c/0x1080 kernel/workqueue.c:2457 kthread+0x2ea/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 task:syz-executor.4 state:D stack:28728 pid: 5932 ppid: 1311 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5182 [inline] __schedule+0x93f/0x26f0 kernel/sched/core.c:6494 schedule+0xda/0x1b0 kernel/sched/core.c:6570 io_schedule+0xba/0x130 kernel/sched/core.c:8714 bit_wait_io+0x12/0xe0 kernel/sched/wait_bit.c:209 __wait_on_bit+0x60/0x180 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0xd5/0x110 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x87a/0xf60 fs/jbd2/transaction.c:1107 jbd2_journal_get_write_access+0x122/0x190 fs/jbd2/transaction.c:1242 __ext4_journal_get_write_access+0x1ba/0x440 fs/ext4/ext4_jbd2.c:235 __ext4_new_inode+0x15d7/0x5640 fs/ext4/ialloc.c:1090 ext4_symlink+0x5a1/0x980 fs/ext4/namei.c:3356 vfs_symlink fs/namei.c:4378 [inline] vfs_symlink+0x365/0x5b0 fs/namei.c:4363 do_symlinkat+0x261/0x2e0 fs/namei.c:4407 __do_sys_symlinkat fs/namei.c:4424 [inline] __se_sys_symlinkat fs/namei.c:4421 [inline] __x64_sys_symlinkat+0x93/0xc0 fs/namei.c:4421 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7efd087f8b87 RSP: 002b:00007fff345d4ce8 EFLAGS: 00000206 ORIG_RAX: 000000000000010a RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007efd087f8b87 RDX: 00007efd08853235 RSI: 00000000ffffff9c RDI: 00007fff345d4db0 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007fff345d4b80 R10: 00007fff345d4a37 R11: 0000000000000206 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007fff345d4db0 INFO: lockdep is turned off. keytouch 0003:0926:3333.001A: can't resubmit intr, dummy_hcd.2-1/input0, status -19 powermate: config urb returned -71 powermate: usb_submit_urb(config) failed ---------------- Code disassembly (best guess): 0: 7e 83 jle 0xffffff85 2: f8 clc 3: 01 0f add %ecx,(%rdi) 5: 85 cb test %ecx,%ebx 7: 01 00 add %eax,(%rax) 9: 00 9c 58 f6 c4 02 0f add %bl,0xf02c4f6(%rax,%rbx,2) 10: 85 b6 01 00 00 48 test %esi,0x48000001(%rsi) 16: f7 04 24 00 02 00 00 testl $0x200,(%rsp) 1d: 74 01 je 0x20 1f: fb sti 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 48 01 c5 add %rax,%rbp <-- trapping instruction 2d: 48 c7 45 00 00 00 00 movq $0x0,0x0(%rbp) 34: 00 35: c7 45 08 00 00 00 00 movl $0x0,0x8(%rbp) 3c: 48 rex.W 3d: 8b .byte 0x8b 3e: 84 .byte 0x84 3f: 24 .byte 0x24